GeoSci.xyz GWB Lectures, 13 Feb 2020

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From YouTube: 2020 02 13 Day7 Part3 FwdBlock ProsysEx

Description

Here we demonstrate a Jupyter notebook for forward modeling the 2D response of a block in a half-space.

A

Okay, ironic day 5% in my name, that's that good doggie, good I, like okay.

B

So now that's a.

A

Rotten inversion in watching boys or red looks yeah. Okay,.

B

So, let's stop, maybe you can make that bigger yep to death.

B

So the parameters here when you look at it are pretty much the same as when we did the linear app this morning. Some.

A

Are looking at beanie any bunch in there make sure that it bothered me getting a bull's idea? Cuz, it's a minnow, so.

B

Rho, not it's going to be the starting model, usually that it's.

A

Also low resistivity estoppel motive is the stateliest I'm your man and.

B

There will be a reference model reference.

A

Motors you may reference large reference. Learning like it did seem our reference.

B

Model is your first guest at what might be there. You think that the average resistivity in oxide park might be 150, ohm meters.

A

Under room, that's a little tiny. We need them down the downing, yeah, sorry reference model, so fine. If it had a motor for the application of in high water yeah yeah, they go.

B

Alpha s and alpha said they control those two components of the model norm. Alpha s controls how closely your solution will be to the reference model.

A

Like reference morning, then needs the under a tree on my body.

B

Alpha set controls how much structure is going to be in the final model, buzzer.

A

No so Yamamoto yeah yeah yeah sound with your body. If.

B

You don't want very much structure if you want to make it very smooth, then alpha said, should be large funds.

A

That go if I'm a DJ.

C

Empty Andy, yeah.

B

A

You know we simply move, so we are on the.

B

Nonlinear problem is more complicated than the one that we saw this morning and there's going to be a number of iterations that are carried out.

A

A phenomena gathered the excellent Hannibal bro show me the Nephilim Yaya a lot of us in there. So.

B

Each iteration is going to have its own beta value, its own T, knopf parameterization, each in iteration. Well, we're going to it's like each step, so are trying to solve a problem. I do step one right that I do step two. Those are like iterations. It's.

D

Like how many points.

A

B

Okay, okay, so we're having to proceed in a nonlinear problem I in step, so we we do a step we're trying to get to a minimum we're trying to get to the bolus value and I might start here here here.

B

So it takes me a certain number of steps to find the minimum. So now many of us out.

A

Of the young waiting so called a nasal well now, I got better meaning my point where they minimizing up with the guitarra I said.

B

A

Meant a lot of Sydney, that's anything good one day you will, you be toccata the walk around so.

B

The procedure is I'm, going to start with a big value of beta and then gradually reduce it at each time. I reduce it is an extra step, so.

A

The legal fee diet that will I'm lying it on me, you don't mind even a so she'll, be the mock that long.

B

These others are not at this point crucial: okay, yep.

B

Okay, so now now we're going to run the inversion.

A

B

What's our parameters.

A

And that be quick, so it.

B

Set the parameters, the reference model, 196, the alphas maximum iterations.

B

We haven't talked about I will that you.

A

Don't need of the only in the Bible. Let me go building me that.

B

You can ski and that's fine, so so we have the basic parameters set. So now, let's just press the Run button run.

A

But that makes without it again fire affected by it. So.

B

Now, what's happening is as well, so these are the different iterations. The.

A

Values- and this is why I say about it:.

B

So the values of theta are listed here, so notice that we start up at a thousand and we go to 600 300 duck Duck Duck, so we're gradually getting into smaller I'll, be honest, I'm.

A

One of you, meaning I, would then and then I'm in.

B

The Phi I is the misfit. It starts off under.

A

A ton of misfit rock starts.

B

Off at a hundred and sixty-seven.

B

Yeah and as my iteration eight it's down to ten point, seven find.

A

Yet out of that way,.

B

The bottom more starts very small at zero and it gradually increases with each iteration.

A

B

Ignored the size of the model get.

A

More than sizable, what exactly what a number is, the.

B

Thing that you called that we called Phi M this morning, they.

A

Got fine anyone it figured out morning number.

B

That's so this, and this says that the target misfit of 17 data, that that has been achieved, that.

A

They miss they got 17 de de dum la knows all about it. Look you're gonna, so.

B

What we asked for was to find a model that fit our target value of misfit. The.

A

Target value missed it so that miss the target value, Daniel, emoticons and Allegra helium Jabari and.

B

That value was the number of data which is 17 so.

A

We then end of that second, nickel.

B

Okay, so now we've done, but let's now look at the at the results.

B

So with iteration, so at each iteration, when we start the the black line here is the misfit.

A

The misfit body and asaba so.

B

As the iterations continue, the misfit decreases.

A

Well doesn't say, minister, look Wally, I, don't know what look like me. I love the body. They stick out. Your body keeps.

B

Going down- and it eventually gets through past the past- the target misfit knocking mr. Guido about it. Well, where it reaches our desired goal. The.

A

B

So this means that the inversion has been successful, absolutely.

A

Nothing imagine how many votes to ratify. Okay,.

B

And now we can look at other things. Let's look to see what the data misfit.

A

Is did a mystics without deeds young, so.

B

The date of misfit looks like that, so here's here's, the data so I don't know. Would you say we've done a good job at fitting the data so.

A

Did I take up the antenna? Oh really general mushy mushy.

B

C

B

C

B

So great, but it's not too bad right so, but we're going to we're going to come back. We like actually to fit better will.

A

Rub it in these doubles out of index out.

B

So Brittany.

D

B

Let's go back to the Jessica contest.

B

D

C

D

B

So what we're now going to ask to do- and we can do it by adjusting this Chi FAQ- is to fit the data better and better. So before we had a misfit a target misfit of 17 now effectively we're going to get a misfit of 1/10 of that to be 1.7.

A

Elements that will see written up, okay,.

B

So now, let's look to see what what happened if we come out here to.

B

D

B

So, let's look at that so that now it's much.

A

Better so online.

B

So let's look at.

B

So there's your model, so that's a model that adequately fits the data. Do, though,.

A

B

Today and remember what we were thinking about when we were using the parametric model, we thought that you know this looked like there's a shallow aquifer and it seems as if that's what's happening here. So this number here I think is around.

B

This is about 40, 30 or 40 old meters, yeah.

A

Totally the motor won't acknowledge. Normally this rally- Oh equipoise Chima sheep, oh yeah, my sheep, you said no more attack, hope did absolutely I might out leave and I thought that I'm dead, oh we got up, she did I've got 500 yeah.

D

B

So here's now the you know the result of it of a smooth model, inversion that smoky.

A

Thick, so you should get that if I said what up.

B

So what you see is that any kind of a sharp discontinuity, any kind of a sharp boundary.

B

So, let's suppose that we really had this so Row 1, Row, 2, Row, 3 and if it looked like Row 1, Row 2, no chemicals wrong way, but if we had so if this is the apparent reason stivity- and this is death- we might have a true earth model. But if we do a smooth model inversion, you know it might come up something like that, so the smooth will transform something. That's blocking. It will transition the boundaries, but we still see essentially the same the same interpretation that at about 9 meters depth.

B

It looks like there's a real low, resistivity layer. So.

A

If it's a be done any month, low, resistivity, no I'm, CFO them up yeah, but the rock by Manny thought percent is a little too light upon that doubt about it. Oh mines are.

B

So this is a like a layered earth model and.

A

My body means yeah, I, inaudible model of their.

B

So a smooth model inversion will take something that is blocky and smooth out the boundaries.

A

Smooth invited smooth that's out of what up he give me audio animals and you get on back.

D

B

The same time, there's many geologies in which the earth is yeah, so so it's like this that a smooth.

D

Moderate version might.

B

D

That, but what is their nd? What is.

A

The right one, the.

B

Red is the true model Annie.

A

I might not a true model of the or a smooth, more the smooth more than that I'm doing a man with the glycols and at.

B

The same time, you have many geologies where the transition is smooth. It is that this is actually a much better representation of the earth than this is it's.

A

Oddly, in the article I need to look more like a Covino will not do that. One! Don't easy and eat out.

B

B

So these are the things that you can you can play with. There is a lot of options for changing.

A

Young's Ashley's yeah. Now you know quite a lot about it. What day, hello, baby, honey.

A

B

What I, what I'd love you to do is to use the app on a couple of the data sets that we have? Can you just bring up the days I.

A

Might be nested in yeah yeah I'm a little choppy ready like how everything is changing job yeah I fell on. My diet me like that me.

B

Yes, we we have a number of data sets here, so here we've looked at the day park, but we also have the synthetic data and.

A

We also said that there's a looking pattern will not ACN, they were not, and.

B

There's also bun in the case history that the DRD have taken here, the youth, maybe that.

A

Means this to me that she had the third location for yeah.

B

It's BES three.

B

So BES three is the data set that we have inverted and also a DRD has inverted and we have different well. We have different models that fit those.

A

Data, yes, the we that's that arrow, the I Gianna imagine of having either only imagine of not.

B

Anyway, imagine.

D

A modern mechanical.

A

Our whole initiative.

C

D

Data locations so.

B

Mala me so malam a datum locations three well.

A

The main data location 3 is realizing it right.

D

B

They were no, but you can I want them to do it as kind of like homework.

A

I know a nanny for a manatee, no yeah and are they anything move down being emotional z2p our life, because.

B

We we don't work because we're running out of time, and we only have tomorrow, we want to get on to the 2d, modeling and inversion today, say.

A

Lemon are they, but she repented of.

A

Demand and that's only data but I.

B

Think because you've worked with the app this morning- and you see this is almost the same type of app- that you'll be able to invert the sum of the field data. With this with this absolute, you should just give that a try tonight and then we'll see. We can talk more tomorrow, but.

A

They wouldn't even take.

B

A

Bit it take those the blue and eversion.

B

Fla-Flu, the hundred.

C

They got my water looks like volunteering at IRA a little bit of chill eraser.

A

A premium octopi.

B

So so questions you guys.

B

Okay, so then, let's do two things that you can actually just continue to drive. So let's go.

A

C

A

If the elfin have a value and low value, are they like put just what the sets set into the limited number of.

A

The Minotaur is above now many Kate Hansen.

D

And we want to get a smooth immersion.

A

Style, so we just put whatever like all our already set. Yes, oh.

B

Yes, use what's already set to start with, and then you can adjust to see what the effects so.

A

The vignette that one day, all random a random.

B

So the alphas then depend on.

B

Their controlling the relative sizes of these two numbers, so this is maybe I- could just write it close to a reference model.

B

So you have a reference model and then here you've got some way of characterizing how much structure there is, if you want anything over, if you want to be concerned about this they're gonna make alpha. Oh thank you. The paper.

D

B

You make alpha sad large compared to alpha s. If you want to make the model close to the reference model, then you make this large so.

A

Reference for an end we had a good morning and he says: oh, oh.

A

B

C

What we are like.

A

Michaels and I focus on structure look for alphas, economical, dark, yeah.

D

B

Okay, so that's the basics of 1d in invert, it's basics of inversion apply to one day so that 1z.

A

The only basic inversion.

A

B

Now we want to go to 2d you've seen some of this before, but we can use it to review the.

A

Review notes net1, it Deborah easy tips, yeah.

A

Oh, that's good.

B

So we have a we're going to generate a DC, rhesus tiffany's survey and we can set out dipoles along the surface. However, we like dipole.

A

Gogol immutable, then it would sit with a table letting it die. Make.

B

The one of the ones that you set out was a dipole dipole.

A

Begley they move out, but.

B

We can also just have a a single pole or a dipole full or full dipole. We can have any of these configurations.

A

I, don't think that how do you know that they'll be out there and for.

B

Whatever electrode configuration, we have, let's say a dipole dipole, then we collect a voltage. We know what the where the electrodes are. So we can convert that to an apparent resistivity.

B

To an apparent resistivity sort of the.

A

Dipole dipole general. You, ladies, are: let's work the other man she doesn't. He may be three apparent resistivity later of v9m and.

B

In this case, we're going to plot this okay midway between the center points of these two electrodes, and it will be here but.

A

Naturally, we signed up was I in the young came along and if.

B

We move these farther apart.

D

B

D

B

Here's our here's, our student section, okay,.

A

Dino section pseudo sections I got for Mom thank God, I mean I, get it I, know yeah all right, yeah I've had it look at that book pseudo section below: let's go down.

D

B

Now we want to, we want to generate a 2d DC resistivity model OD.

A

Duty looked at me, oh no doubt and the record of that one.

B

Yeah so we've got here's.

B

So here's a cross section of a beer and in this particular case, I've got a block down here which is low, resistivity and I want to try to first generate some data from that and then I'm going to invert those data to recover this block. The.

A

Dd, cop, the egg: don't do it or not: hey no unity.

B

Don't do that do any headed.

C

Do I resist evening there, oh yeah, we don't think.

A

I'll get a shot, a photo man, so.

B

We can adjust the parameters of this block. We can make it wider in the X direction by changing DX.

A

Dx go change out today, see.

B

We can make it a block that looks like this lovely.

A

New talent, yeah, look at it. We.

B

Could change its depth so these dad.

B

So we have it, you have the option of making the block wider thicker, we could put it down and you know.

A

Death will reshape me out loud over. We tuned it through now on a musical night, so.

B

That's that that's an object, it's a block in a half space and we can generate data from that and then we're going to try to recover that information. So.

A

Any information with them, you know something: now the Italian tabular send the regular go. Betsy Network.

B

Okay, so we're now going to do the dipole-dipole survey that we just.

A

B

We're having to forward model the data, so in this case we need to establish a grid or a mesh.

E

A

Mass flow measurement and.

B

Oh yeah me and.

A

B

We're going to do a numerical solver to find out if we put a current in here, what is the voltages anywhere else in.

A

The method I live in the novels that kid Bobby wound up on that wall: okay, mama, electric; currently, let's hope zero tell exactly a balloon. You are going to go measure out, yeah, okay,.

B

So now we take this dipole-dipole survey that would that was a really little bit over over top here and we're going to simulate to the data by clicking this button here.

A

Come on simulates a rally things out it so.

B

This now is our apparent resistivity Sussudio section.

A

Is used to do a section? Well, the only Italian, amoun oppose I, don't know, and.

B

Yeah we can stay with this, or we can also add noise to these data.

A

Do damage hallelujah I, mean I, know that very nice to take me out here and.

B

Then the noisy data would look like that.

A

B

This is a way of doing a synthetic synthetic if we want to, we want to test our 2d programs out on something. First of all that we know that.

A

We kind of how one he may end up today: libido mom yeah.

B

So we we build a bottle, some kind of extended block inside.

A

The earth so I say much in a yeah I'm on your side. Don't worry how much you know he'll here's a down beyond it, we're not going dinner. When you go down your leg or not. We.

B

Designed a survey, a dipole-dipole, it's.

A

Not really good, oh no matter, we focus on which we are me and.

B

We simulate the data, did.

A

I say about me and.

B

Then we can add noise, nice about him.

A

B

Right and then we could write on to an observer, I, don't think I wanna do that. We could write on to an observed an observation pop.

A

B

So we then we write this out to a disk someplace.

D

E

D

B

So so we've done the simulation and if we've written it over.

A

B

Yeah so we write the numbers out onto a computer file but.

A

They don't remember the table yeah, you know about it.

B

Okay, so now we've gone through that step. So now we have got these data, so this is like being out in the field. You've collected the data, and this is the apparent resistivity Souter section that you heard Tara.

A

Resistivity yet so this actually goes only behind okay, it's.

B

A

I'm Adam, yellow.

A

B

A

There's a lot to remember: okay,.

B

We'll go, we can go over stuff it. We can go over stuff again, but we're try to you know, get through everything. Now.

A

Today we have built that, like that one give that me tomorrow.

A

B

We're what we're doing here is making an experiment where we know what the earth mom is we're going to stimulate the data and we're going to write it out onto some file and then later we're going to take these data in the.

A

River, so I find Emma gimme gimme a Muhammad Ali phenom like I'm, more their pollen and it's a phenom I set out to that peanut gotcha, look kinda hot I know for a big one.

B

Okay, everybody so so.

A

American anomaly: they really ricotta believe: okay, okay, last one, okay,.

B

So now, let's Don, let's open up the 2d version.

A

B

So now we're going to take these data that we've just created and we're going to read the man, will invert them and see if we can find the earth.

A

B

So well, first of all do the synthetic in there.

A

Later so, honey.

A

B

Well, first of all, invert, the synthetic data and manual use the same app to invert your field data. You know.

A

That's convincing them to maybe them out the application of you know a we, a female get it out there in box. You know cuz, they did. We can comment now. I think you will go step by step. Absolutely yeah.

A

All kinds of applications.

A

B

You mean our apps or certainly.

A

A

So it's a it doesn't mean, like anybody want to know this. One I use this app, but I want to note the other information I used. Another athletes I like that, do we use all apps. At the same time, no.

B

It's usually I've got one thing: I want to do so. I use this particular app.

A

Different apps different.

B

Apps for yeah, so sometimes the apps were just to show you where the currents are going. Sometimes there's a one D of one D app for the DC resistivity. Now is this a 2 D.

A

B

The specific apps are different because we've tried to make things easy for you to work with.

B

Okay, so right now, but you well we'll do the 2d inversion but you'll see that it's almost the same as the one D which.

A

Is the net thing.

B

So now, actually just.

A

About in general does not take online, so obviously they call it. The echo has aa market every time.

A

B

So this is the app that, but maybe just said that we'll be using all next week. This is for all your field, data.

B

So the steps are again similar, we're going to load the observed data they've.

A

Got a 10-minute limit add.

B

The file that we're going to be interested in it's the one that we just created a month.

A

B

So we're going to load this file, it's a CSV file, CSV find any other files that you'll use are a UPC file, but for this one is CSV a who CSV.

A

Of the moment and.

B

Then it's it tells you what kind of file did since a dipole-dipole and.

A

My block will find new silence wrong information. It will give that really make me laugh and.

B

There's a hundred and sixteen data.

A

Point body and.

B

It's going to use a 2d, it says to D tensor mesh foodie.

A

Kinds of math yeah.

B

So what we mean by that.

A

B

We need to make a region- okay, that encompasses our survey as well yeah. What comes is basically survey and the depth to which the survey can be seen.

A

So lucky sub, they look like a bucket and it'd be lucky being a mess without you.

B

It's going to use a numerical way of solving the equations for DC resistivity, but these cells, in order to do that, it's going to require that the earth be divided into many cells, but.

A

Think about a medium novel book sales did no, no don't go in it. We do not it when.

B

We're dealing in 1d, we just have to worry about cells that were changing him. Yep criticize my caps yeah. We just said.

A

Layers so in the one decent inner powers are in scientist job. We have no I'm.

B

Not leaving excited.

B

Here we're going to have to worry about cells that go up in all directions. So, let's suppose that the beginning of my reign is is here and the end of my array is here. So maybe this is you know 400 meters or sighs, not sure why.

A

That's what I'll examine so I.

B

Guess in this case it was yeah, it's not 300 meters.

B

So that's where we're going to do our dipole-dipole survey in this.

A

Region, I didn't Amma that when I was living in LA so.

B

We need to divide this region up into many cells on.

A

Each unit I didn't eat any gold or sensitivity, nickname equipment and, as.

B

A rule of thumb, the number of cells that you should use for, if our smallest guide pole is let's say, 10 meters, then we want to have cell sizes that are about a quarter or a third of that. So that means like Delta X per cell size. They should be in the order of 2.5 meters or maybe up to.

A

5 news the XSLT size would direct about it, so this I got people so.

B

That means that we'd be having cells in the horizontal direction.

B

You know that are more like this size and they're going to go all the way down like this, so we're going to discretize the earth into cells. That then look like that.

A

Other sounds in it about you, yeah museum. You know quite negative on them.

B

We're also going to have to have cells and extend beyond this region, so we're first of all, going to continue whatever this is. Delta X well, first of all continue a few cells of this way at that same spacing, and then we'll start expanding just the same as we did, even though in the 1d so now we'll start making the cells the cells grow. Bigger. This way.

A

I'm I don't want to go in that. Oh come on, sound I, know, I, know, I work, your house, my.

B

A

Sales is that up what you like, that one eat I'm goona boom. ah Oh my God look very happy! Oh one point one more 10% GGG! You are well I can't go but would go out on them. Yeah TTT, botnets out of the app and the.

B

Same is going to be true on this side, so we'll have cells that look like this and then right. Actually they are going to get bigger, but.

A

Did you I, don't mean I'd forget be able to find enough themselves that word city government say you need you up so.

B

That's what happens discretizing this way in the vertical direction, we're also going to start off with small cells and.

A

Let's certainly I like that day love it yeah, my muscle think they make the assignments the units on me so.

B

We kind of keep the same idea that we had for a layer dirt. My.

A

Middle Italia, so 1 DF, my beloved, a nobody. The ATTC reality a lot to water than you.

B

Buy yeah and then they can gradually get deeper or get bigger as we go down so in the vertical direction. The cell size is small at the surface and gradually gets bigger in the horizontal direction. The cell size is small and stays small in a region where you have your electrodes and then can get bigger event.

A

B

Need ever they.

A

Need three months ago cells that they didn't she grow hey. He took our adapted myself in this.

B

Region in here, where we're really extensive.

B

What is what's going on is called the core region, the core original fort or.

E

Restore original.

A

Yacht if I was like the wider Lundy, is it Steven Anita? Don't you think I got up since I am kind of net? We have enough yeah.

B

So sometimes you'll see in in the work that it's done, they'll talk about a core region. That's this region in here that the experiment is sensitive.

A

To so missing is the diametrical anomaly, as well everywhere senior who ate them up and then.

B

The other regions, it's sometimes called padding cells, padding pa.

A

Neons out of nationalities that buyers are a fool we honor and.

B

That's required so that the boundary conditions are that the the problem, a numerical problem- is solved accurately.

A

Ain't, no mother, with an equity season, if even I am about you see me out of me, I hate being so.

B

Building this, this is called building the mesh that would up.

A

Mashable yeah, you see something today and that's.

B

Another very important aspect of.

A

The inversion I like watching at the any accident attack that's antibiotic, because.

B

If you have a poorly designed mesh, then your numerical solution might be wrong.

A

So, generally max would be something come up. How many Hannity some people's eyes out? There are young at yelling about combo for now, so.

B

We're not going to do anything more on that, but always remember that the mesh, the meshing is a critical part of doing any inversion.

A

So the mashing parkour, the matching the sounds in a young so.

B

If we cut that here, I'm, not sure you can, you got any bigger yeah.

D

B

We just changed.

D

B

But it's okay! Let's just make one: it's.

C

A

D

Name kind of see.

C

B

So, okay, so here's here's our region where we ever survey and.

A

Minutes this e minute, why would take region, 30 meters.

D

B

So the core region that is down here up there down to any.

A

Other coordinate, it's they'll, be asleep any core reading and then.

B

Everything else are sort of expansion and padding cells. Then it.

A

Padding section yeah.

B

Just yeah yeah because we need to make the mesh hole big enough, so that boundary conditions for solutions are.

A

B

So that's that's now the the mesh and when we do the inverse problem, each cell is going to have a resistivity that we're going to try to find. So even these cells out here now here, I have an unknown resistivity and we're going to walk to assign values of the.

A

Emergent, if an occasional visit, no any cell disease, l98 resistivity, my.

B

Opinion either cell.

A

Dna heavy leg of the the other body.

B

B

Okay, so now we've built our mesh so now we're going to.

A

Plot the observed a national view. Sorry I'm, not gonna react. They died new home.

B

So here's our pseudo section.

A

Our studio session month and I'm the only time it and then I, pull up in the analyzer that time. As a section you.

B

Notice that this pseudo section cannot be interpreted in terms of geology so.

A

In the Yahoo Rock, it's a printable yeah geologically.

B

What we had, we had a block here. He.

A

Loves you yeah yeah,.

A

B

Pseudo section is just some way of describing the data, but we can't interpret it to logically.

A

Sociology yeah yeah, the through it 50 that ago, with a friend of Lumia, voted on earthy that it will pop yeah to you, but that don't either she was actually a bombing.

B

So the next day, okay, is to never data. We want to invert it, but we have to set the uncertainties.

A

Something the demon things I, move, damn it Wow.

B

So we're going to sign a percentage donation M going at four.

D

Okay, so I'm just gonna set us.

B

Okay, so now will regret your now run. The in person look.

A

You watching you around on TV.

B

So here again you have the same kind of slider bars that that you had before. So we have a reference model, a reference.

A

Law today, one.

B

Thing that's different: maybe can you make that just a bit bigger, so notice now there's an alpha s, X and I said.

B

So there's an extra alpha.

A

B

That comes about because we now have an extra dimension in space, because when we were had a 1d problem, we had an alpha s to make it close to a reference and an alpha Zed to go down.

B

But now we have to worry about what's happening horizontally, but by evening.

A

Yeah, like meaning I, lie by 10 des No.

B

So that gets us is out. Let's put alpha s in football: oh yeah,.

B

And then, let's put Mack sitter.

D

Well, we can go reasonably because there's only about 3000, so.

D

Five actually.

D

B

E

B

So now we're all set and we can press the Run button and.

A

I'm going to set them to use on a run, but then we'll flip, the body. So it's that.

C

D

Just checking how much can.

C

You zoom in a bit.

D

Achieved after six so.

B

This this fight found a final inversion, while after six iterations.

A

Something that without be so.

B

That's first of all, so let's just take a look at the beta values. Just did.

A

Not know what I do so.

B

Again, you can see how they are changing. They're, cooling, 270 down to four five ink, starts off at 40,000 and gets down to 47, and then, if I am the structure continuing to increase it? So it's behaving it's behaving like it should.

A

Be down a little bit, it evolved enough. So.

B

Now, let's take a look at the inversion results.

B

And we'll, first of all, look at the misfit as a function of iteration, so you can see that it starts up hi successive iterations. It continues to decrease, that's good and then let's take a look at the date of misfit. So here's here's the observed data. There's our student section well someday.

A

Down the road to the section yeah and here's, the predicted data and it'll come apart, and here's.

B

The normalized Misfits.

A

Buzzer a misfit go, miss lick would take each other be done.

B

We just do water time.

B

So our misfit is the observed minus the predicted divided by the standard deviation.

A

Now mystic economies, people that have observed it on a general command, Otago canavero standard deviations are now.

B

We would expect that these numbers should be kind of like this. If this is 0- and this is 1- and this is minus 1- we kind of expect that the numbers would be mostly in this region, from minus 1 to 1 or maybe some out to minus 2.

B

So we kind of expect the numbers to be clustered right around Cyril. That would mean we fit the data, and if we are successful, when we look at these normalized misfits, we should have about 95 percent of the data being between plus and minus 2. Then.

A

You find this another lesson: Dino Mia did not eat not yet so.

B

We expect that between minus 2 and plus 2 that you should have 95% of the data residuals lying in that region.

A

Anyway, percent love, she nobody died, they got, we don't know, it was.

B

Normal I slowed like that when I'm a nice-looking Carol, can you read put that.

D

It goes from minus 3 to 3 on the bitts yeah.

B

So this is from minus 3 to 3. So that means there's a few points that are sitting out here, correlating a bit with where the, where the signal is, but actually it's overall, it's it's pretty good.

B

So now, let's look to see to see what the model looks like whatever.

A

B

Have you seen that long.

B

So this is now what the model looks like. So that's not bad right. We've got. We found a low resistivity region at the right location, it's more or less at the right death and you know it's it's not a it's, not a block. It's kind of smooth though, but that's that's fine today. That's what.

D

B

A

Resist even a dent in the other, to prevent oh yeah, that's right!

A

C

A

D

D

They're called answer our answer: okay,.

B

So here's here's what the true what the true bottle was and here's what our recovered to debunk them.

A

Adult room, although look at it well, I thought recover. Mother luck, yeah! Well the time, although.

B

So we've gone from our pseudo section to the inversion of the 2d dipole-dipole data, so.

A

There are lots ago, section is a very cool Ezra who did that would ever walk young beloved at the bottom.

C

B

C

B

I think so, so any questions probably lots.

B

So I, are you actually running that.

B

Okay, so I think this is. uh This is a good place to stop.

B

There's been a lot that that's gone on today, with respect to, in version one being a 2d, so it'll take a while to kind of absorb all this stuff. But that's that's probably enough about inversion for for today.

B

What I would ask you to do tonight's, its smallest, the last day, or at least some of the people that we have that you spend a bit of time this evening tried to go through work through the apps and the 1d, and maybe the simple 2d example and just see it becomes more familiar with all of the parameters and what the effects of changing any of slider bars.

B

A

Never debates a tourniquet lod, the Decalogue a10, a team engineer. Mr. Peter to Tijuana and I was examining a Mac, the typicality work. By Brad she had a pirate who put again Jimmy gamba, saying internet guitar allow internet karate, para maana.

A

C

A

Not denying the bangle Cunha nearby of inversion about the prom night muchacha de mi ro Coulomb per meter, mama mia mama, know that make an hour of generate no Gemma here much yeah. It is really an attitude.

B

Okay, let's take a break break back so max. Did you.

D

Doug, what was the test waters? It's.

B

Just DC DC dot CSV do.

D

D

And Laura's like and then percentage beats, we take a percentage.

D

Don't forget that.

D

D

Letter one fi'ty where.

D

And getting a place together.

C

D

C

D

Yeah I have one.

E

F

Have you have the orange of the park WS + DD with no Corrections.

F

What's that no processing, you know just.

F

This is touched by their face: okay,.

C

I mean I've got a bunch of sticks around.

D

E

We find a to say.

D

A

D

A

D

F

Maybe you can show.

F

C

E

D

F

B

F

F

B

So the result so.

F

We can go over.

B

A few of these things tonight to.

F

Decide exactly.

B

F

Kevin I move that.

F

E

Yes, that moment, I think we have everybody.

F

So circulate that disk around and get the two files off of it, because we're going to start on that in ten minutes.

A

Time, hey, you cannot read it without.

C

A

That I find the final download about what something most people.

F

It's process I think everybody.

D

D

F

Cut your stick with me.

E

Oh yeah, what's up Stig me I should.

F

Probably stick.

E

That right there.

D

F

C

Islanders host.

F

The original Irish cuisine.

D

F

D

F

Going to present.

D

F

The woods of processing.

D

It's not situation.

D

F

Listen up keep passing that stick around stick.

E

Away by being nice only found some of you.

F

Got to see the download on Tuesday.

A

I'll just need the art delegates so.

E

Yeah yeah I think I need. Oh, are you getting it ten.

F

E

Are so got to see the down.

F

So there's two different ways you can download with the cables.

E

What do you understand in the top right there.

E

A

A

D

Once piracy and this.

E

Goes into your USB stick or your USB port.

F

That's the process window right there. Can everybody bring that up on their computers and.

A

I'm gonna be the spindle on.

F

So process doesn't have a license. It's automatically starts for you when.

E

You can Alamos, you know of the mint expand on it and you.

F

Can download it from the computer from the internet anytime.

E

F

E

Running process not yet.

C

F

This first part, you won't be able to do anyway, because you're not hooked up to the unit.

A

F

If you have process running, you can go to data download. Thank.

E

And take natality bali-ba and then SC r, 1 plus 2 CL.

A

1 plus 2, so Ryoga.

F

So your screen will look blank and that's the communication data.

E

In that download.

D

F

It brings up your download window.

E

I don't window, they fall down. I mentioned how many saw this yesterday, the bounties.

A

And you look through yeah yeah.

F

So a couple did anyway, three four or five okay, you have to specify the beginning and ending.

A

That's not that's only of Adobe I mean yesterday.

F

We were collecting 1467, oh yeah,.

A

How's that 100 days after that look.

C

F

So that's what I have loaded in here, one 1467.

E

A

But nothing like that. Tom, though that.

C

A

F

That's specified.

C

F

C

F

E

Will work on high-speed that don't mean a high-speed, my other body, how to connect if.

F

Yours isn't working, you might have to go to a lower speed.

A

Boston and Mediacom that.

F

It'll be a body and the safest part is just used 9600 and the 600.

E

With them is they're gonna, say miss yeah.

F

Because it's the most rugged one, this.

B

Is the one that will.

F

Work if your software is going to work, 9600 will work that.

A

E

19 anything 9600, baud rate 10600.

F

A

Vanilla was an analysis and then you might come out the high-speed Maruyama yeah then.

E

You select, download, download, select.

A

E

Four six seven might not last.

F

C

F

We collected that was our weather Schlumberger.

E

Now, when that's not machine in a panna cotta, now we're.

F

Dipole-Dipole started wood from 1468 that.

A

Moves out it, never, that was that out was I.

F

Went to something like 3257.

A

And yes, then we did with two arrays to erased those.

F

C

E

F

On it, those of you who were watching yesterday saw me download all of the data. At the same time, Linnea.

A

Who didn't goes? Do they do no more but see my beauties.

F

And then yet I then separated the two files into a winter slumber. Jin-Tae for guys do.

A

Not do find a fine point, I get when it's time to rename that I would never find it.

F

So I can show you how to do that, but it's easiest if you just take one or Schlumberger first and then, if you have another file, take the other one. Second.

A

Will be a big juicy detail? Another cool I'm, an honorable abilities of everyone and.

F

That's why you're writing your field book? How many data points you have and where their story and.

A

That people do my in harmony but I think that why she did not witness any comedy.

F

So then, on the iris unit, you have to push the download button number seven download a miss.

A

E

D

That's right: there.

D

F

When you do that, you then select ok on your computer.

E

Come via my select, ok within Army and the to talk to each other and the download happens.

B

A

F

A

Yeah we gotta, let me have.

F

There is what your man there's, what the iris screen will look like, and here's what the pardon me the Cisco would look like this and your computer will look like this I.

A

Mean I might not do that. I need a gone into that damn. It was a matter of people than jamming as.

F

It downloads the green, will proceed across the page I thank.

A

Unity go come out of there, Tama.

F

F

Right now on York, well, here on your computers, why don't you load in the data right now, clients and you yeah load the data.

E

In right now, okay, if you'll be not able dude.

A

F

So do winter slumbers any first.

E

Go to five-member terrain, we've finally mastered go to file, go, find mama, open, open, I'm.

F

Going to open the last file, because that takes me to the directory hood, an Oakland Park ws 7 to 4 meters, 7.

A

New poem me died at Papa Center to bonito next.

D

F

Given the stick that was passed around I hope they have the.

E

F

You'll get that stick around, so those of you that don't have the data will have it, but.

A

Emily, maybe they have on evening.

D

This one has okay.

F

F

So that stick will be passed around, but even before that we have to this this server. Where allows us to look at the data and massage it into a good form for processing.

A

So you can see we.

F

Will bring up this screen? Those of you have that hold the data on bring it now.

F

Go to processing, if you have the data, he.

A

Does GB so you're not for assessing the body and.

F

Then go to next.

A

C

Terminate yeah.

A

F

So what you're going to see is a plot of resistivity apparent, resistivity versus level or depth. My.

A

Plot to do them in resistivity ever to this da Daphne I need a good a minute.

F

E

F

You that have the data. This is the part data when or Schlumberger, and it looks almost like.

E

This now, when I sit under anybody.

A

That I'm gonna be happy, look on that mean yeah, so.

F

It's a very good data set I, don't know, maybe.

E

That's that the collab.

F

This one, which is spread around means that you've got some problems here. Some data that you're going to have to throw away I knew.

A

In exam utility but yeah, that's the idea.

F

And it's the same here: any money I know. So if you have the data on your computer, open up, Open, File dipole-dipole now so open the dipole-dipole one on your computer.

E

Nobody's moving.

A

F

Have the winter Schlumberger open right now open up the dipole-dipole I put that one in Clinton use.

E

F

Process go to open file, DD Park, DD, 70.

F

So maybe explain it if you open the last vial, it goes to the last folder. You were in.

C

F

Then go to your processing and.

D

F

A

Your hand up if you're, seeing this on your monitor, no.

D

F

Go over this again for those that are just downloading it. Who's got that stick now.

A

E

Has the stick now.

C

F

You have a data, okay, everybody else.

E

Who doesn't have the data that we should give.

A

F

Right there there's a stick just behind again, so everybody sees this data set. That's.

A

A lot on a dipole.

F

A

F

It's not as good, it gets nice and tight.

A

F

A

F

Dipole is this one we know I just wanted to see the difference between a good set in advance.

C

F

So that's a bad! Well, it's.

A

Not a really bad data set.

F

But it's not a really good data set.

A

Yeah um about me.

F

So now everybody go back and open up your winners numbers any one. Another.When.

A

S them generate it and refer back.

F

You just have to close that window.

F

So it's a pretty standard set of steps that we go through to process data, especially if it's a good set of data. Yes,.

A

I know thank whatever global process look at them. I did I found the quality family diagram.

F

Is it- and this is exactly what we've done for the park data that you'll be looking at tomorrow, so.

A

Another thing we I made the Phantom I then get it be done it BMA ddotty keep on it.

F

But those of you that have sharp eyes will see that there's one really bad point: where is it then, when your screen where's the really bad point.

A

Melanson about.

A

F

D

E

That's a bad point. The answer that point on these.

F

Ones might be trimmed out a little bit as well and I'm internet.

E

Chained tomat niha manana today.

F

The software package has a very good automatic filtering program.

A

So that's not my job automatic little bit of irony so.

E

Close that window, yes I window, go to processing, processing, you're, loving and choose.

F

You know what first of all choose filtering.

E

Filtering whoa they may buy.

A

F

Now also, click on.

E

Your maximize screen makes a nice little video that today naughty pig.

A

F

That opens up the whole window for you.

F

So these are the important parameters to look at that. You see that are embedded by the apparent resistivity. You can see that there's one very high one, that's why this is showing his green. The.

A

Yampa Tamara.

E

A

E

It down divided.

F

And the same thing for the current: that's the current a be inherent AV, that's the voltage, Amana and thus the geometric factor and here's the deviation and there's a very large deviation value.

E

We're going to get rid of my mu in it close.

F

That window and I showed you this yesterday, but you can just click on row and you'll see the variation.

E

Of maybe HDTV I along the line and.

F

That looks pretty good. That's not that's a pretty good plot, close that one and it may pop you can look at the deviation. Deviation is.

A

C

F

The deviation should be below 20 deviation,.

A

Not as they out keep in mind so.

F

This is the standard deviation, there's obvious some very bad points. There.

E

F

Look at the SP SP, so this is the self potential. This is the current that's in the ground, even if we weren't there doing what we're doing.

A

Now, rent will inject one up in a move on the machine today and.

F

You can see that there was a lot. I was a lot of variation, it was going from minus a half, a volt to half a volt and our VPS are in the range of well. This is 500 millivolts to minus 500 milli, volt.

E

Minus minus 500, meaning gulanee an.

F

Artful to deserve 2 millivolts to 100 millivolts I.

A

F

I mean Ibuki, cheap I think it was 300 millivolts, so it's pretty important, but the system as long as it's not varying too much corrects for it in the data.

A

F

The high deviation was probably when there was a big change in SP at.

A

The end, my name and.

F

This isn't the time series here this isn't showing change over time. This is just showing individual measurement when we took a data point individual measurement, when we took a data point across.

A

F

And you can do the same for everything else. You can look at the PM.

F

F

Now these are the ones up here. You can actually click on row and there's your pseudo section. That's the detention map. So sometimes you can tell information to vary, how the quality of your data from this window to en.

A

Enero quality, DW Kamikaze, oh yeah body, but.

F

Meanwhile, we're going to go back to that really good Auto filtering.

E

Of the fisheries economy so.

F

You can do that now: click on automatic filtering, the top one.

E

A

Processing aunt Annie was on how click panning so.

F

The first thing that you might notice is this number down here: has changed how much it.

A

Back deep down Maggie's up reality, so.

F

This is a very good data set where there's Mother's Day. It only took care I think six points. If you look at 1524, so it only took out six points top point of it now go to your processing processing and look at exterminating that data points as.

A

A Hey, it's lemony copepod tonight.

F

So the one on this side is just.

A

A bit off my young, it Bobby.

E

And it might have been a couple in this area that you still resent it. That.

A

A

Yeah, you have many cars in there.

F

Okay, is everybody a little shirt there? Okay, that's good.

F

There are about 50 columns across of data points or data information called nozzle ops example with anything so the default that has opened up for you, maybe only has about 10.

E

So it actually has most of the important.

A

F

Ones are all IP.

A

F

I'll show you how you can turn those on and off go to file final Bava down.

E

To options, options IBAMA.

F

Then you can go to display.

E

Disbelieve with Nene.

A

F

Everyone that has yes, is showing on your screen right now in the data set.

A

Yes, yes, damn it. Let me ask in a monthly, doesn't.

E

Let's be more down, you could just move across a little bit hold.

A

F

A

You shape it up.

F

But see all mine say yes, there's.

A

E

They have to change the yes just go all the way to the end here.

F

I'm gonna I'm gonna tell them so take.

E

It all the way to the far end. Well, it's only bye, bye and just.

F

Double click on transmitter battery and receiver, better.

E

Let's see how much we get transmitted so.

F

You just take your mouse and you go. Look sorry on their double click, see how it switched. No double.

E

F

You want to change those yes.

A

F

Just turn those two.

E

On haiku, edit transmit the nights only tuna, you can turn on the temperature and the baby Chesbrough one.

A

Way on a take that when we had it.

D

A

E

Need to be asked what's up, dude temperature and deep, then we giant Taeyang yep and that's all you need to do in England for looking for them. I'll turn.

F

E

My knobs here we.

F

Have the same thing.

A

D

A

F

You should turn on this doc. Also, it would find stack, find stack and turn it on yes, Sacko steak. Oh yeah.

A

C

C

F

C

D

C

No, no, no man, yeah, there's.

F

There's all know anyway, minor. Yes,.

F

These are all IP information and we didn't take our EP.

A

Timely nepeta, the information in Girona I'd, be tending to thank Hera.

D

E

So yours should look something like this now this ain't gonna be up on that game and come.

A

C

F

Everybody good.

D

A

The SCP thing so.

F

All in all, this is a pretty good data set. We might take care of these, but we can leave them in and see how they affect the interpretation.

A

F

That might contribute a little bit to our error, but it's also some of the lower resistivities to.

A

A

F

Then what you do is you go and save as something.

E

So safe Islamic, if you might they mess if.

F

You take your data, set you've downloaded it. You put it on your computer, back it up in a separate folder immediately.

A

Niv, it's they're, gonna, be enemies are Nagel. What will be the Amazon? It's a messy I'm up.

F

A

F

Don't want to process your original data set because it's possible to lose your the original data set already.

A

In a unity message, but I'm fine.

F

A

F

A

Give a lot to make a thing, then you go be out of night.

F

Those of you that were there yesterday when I, was downloading I downloaded to my computer and then I immediately put a stick in it and copied the file to the stick.

E

A

Wife I hope fits in. You might put me down missing my processor, so.

F

Now I had three copies one here.

C

F

On my computer and.

E

F

A

The step-over, though they may overregulation, you may be from the early I Bobby Bonilla, so.

F

Don't overwrite on here until you know that you have good data copies, that you can work on.

A

That would stay there if you wanna, be comparing a diesel model.

F

So I came home and I immediately processed the data and saved additional copies of processed data.

A

Versus looking at me now, anyway,.

E

So now I'll save, as famous name a.

F

Find the folder you're going to put it in.

A

F

42 Myanmar one.

C

F

Something distinctive I'm just doing this for the presentation right now, so you can pick up the name that way and I call it.

F

Auto all the time, because I just Auto filter automatically filtered so I call it order. But.

A

I'll, do a fine animator! You know the laser okay buddy. What do L do patient a la coubre menu.

A

F

You've done that just move down a little bit in your in your data file.

A

F

A

Anything I'll treat.

F

Move down until you find one of these is not checked that.

A

It's blank I'm. Some people have unit of money, I managed to tally. Did that warranty.

F

You know what we'll do that later. I'll show you in the dipole-dipole open up the dipole-dipole example, get movin.

A

F

So in a dipole-dipole again, you'll notice there's a whole pile of zero Ageha down here, which is not good.

A

F

Know, plus the big spread like that.

A

E

F

Tends to be noisier and.

A

Look at radiata, oh man, rifleman.

F

Because the current is essentially spread out more it's weaker when you get further away from where the currents going in.

A

Again, we need to get a bit weird in April. Brooke I wouldn't got a minute hold on you're, not if.

F

This was a winner or a winter slumber date. Then the current would be much stronger in between well.

A

That's not a race or not yeah, Nessie time in it we get damn I hope. You know over done that.

E

That's what being.

F

A peon Emma: that's why? If we only have time to do one technique, we use winner or winners, lumber, J arrays in.

A

The technical area you never know which he met now you owe me a night same in use it or whatever those numbers are away with the money.

E

F

Let's, let's do the autumn automatic.

E

Filtering again and the demand anyway, automatic video ring go down, move.

F

Your data rate back up to the top, so you have number one.

E

Bozo pilot and London and.

F

Now you can see the number down here, it's from their winnings neva. Let's remove one hundred and seventy nine points. Tom.

A

Chuckles the net was out of line. Let's look at.

F

That what'd I tell you exterminate data points that I did it for huh and that's looking a lot better now we're.

A

Not get down I'm just you know that look found. It did that woman.

F

You see there's only a couple of points outside of the main area.

A

F

Of stretched out a little bit up here, but looking much better.

D

A

You telling me they don't know how to do on the feed rate.

E

A

C

A

That's the automatic children.

A

D

A

D

F

Say that I wanted to get rid of these two points here, peanuts.

E

That would not help them enter. The vault has yeah I could do that. A couple of ways.

F

Now, let me add, in the muse buddy one is to use this screen when you kiss.

E

Me with um you know them beyond it. You can click on it.

F

With your mouse.

F

And you'll see that it's red now, a.

A

Little Cleveland examine anything I got in me on set.

F

And I could get rid of that one like that to.

A

F

Working today go so you can get rid of them like that, and all you have to do is go okay and those two will have been removed.

A

E

I can bring them back in if I don't want to, but yeah. So.

F

If I had quite a few and I didn't want to go, click click click, click, I just have to look at what the value of Row is. Here. It's under 100 to.

E

A

Example, with the out.

E

So under 100, ohm meters yeah so.

F

What I can do is go back here, go to processing and see the filtering.

E

Value value man, let's be able to.

F

Click up here so I can see the oval screen and so I can enter in I know that there's something that's below 100. So this is the min value and the market value.

A

Amount minimum and they bloom it makes amount I'm. You know venue to see what he meant so.

E

I could get rid.

F

Of anything under 100, just by doing that, look nothing.

A

Yeah yeah anything you.

F

See I live alone.

E

F

There and I go over here and then click on apply apply.

A

With me buy me my mini member, the animal.

A

F

If I go back up and take a look at that, okay, so those two points have disappeared now, so there's nothing below 100 the out.

A

Diplomas, you know yeah, they are now.

F

Sometimes, with a dataset when we're, maybe we don't like anything, that's below 5 millivolts, we think that's bad data five-minute.

A

Vote uncle, you don't believe in what dynamic, ammulu you're amazing yo. Here we are gonna.

F

So with that filtering.

E

And between a value.

F

We can actually enter in VP here, 5 millivolts.

E

Might be peopIe vehicles and honey yeah you.

F

Can see these values are negative, but they'll turn into positive. Their own values are positive right now,.

A

F

Possible to see negative voltage because it just depends on what the orientation of the electrodes was meant.

A

For yet type of them leave it off or negative potential. Ok voltage and.

F

Sometimes, with dipole-dipole it's got flipped MN.

E

Electrodes, just the way around I would ever want.

A

To end their oh yeah, now, I don't really like. She was asleep that day.

F

So now we can save that one.

E

Take the bunny and the first.

F

Year I have my window.

F

So it's got the default. Ws I have to change that I'm on the middle dipole, but I've gained a half Auto.

F

So that's a pretty easy processing and.

E

Then we're processing my when we take.

F

A look at the data that we took on Tuesday, the dipole dipole is, is has a lot of bad data in it. So we'll do some other processing of it and look at that tomorrow. In.

A

Under a minute that would that go on feed, I think I'm gonna, let my process it looks like.

F

F

In that case, we're going to be removing some of the deviation data. That's really hard on me. I'm.

E

Minimizing deviation.

A

And Ian is 1/8 deviation. Lastly, we're showing off that.

E

Man and a few of the high voltages you'll see.

F

A

F

Now, what do I do Oh? What is one other thing that two other things about the data that we took in the park.

A

F

Remembers we had a 90-degree turn like this. We had four electrodes that went 90 degrees at the far end.

A

F

A

F

We had it coming up to this side in the park until electrode, 64 and then 65 to 72 curved off, like that.

A

F

We wanted to get rid of the data that was not a straight.

E

Line ain't like oh mama,.

A

F

We were interpreting modeling today.

A

F

That's a little more difficult to do, but you've been doing in this package to be peggy's.

A

E

Loop, so we go to processing oops testing, the bomb it actually just I.

F

Also wanted to just show you you can see the data that's been taken out because there's no life.

A

In the Haredi and I do think I think so. We've.

F

Kept all the data that's checked.

A

F

If I wanted to I can actually select all the data again select.

A

All the data and.

E

Then I can say: keep the selected data keep.

A

Selected it as a select, they don't hide in our atomic title.

F

It will pick them all up again: okay and that's the way I used this same window here selection when I was splitting the Rhenish members in the dipole-dipole do.

A

A selection, my nice times every day.

E

You might wait. Emma that's for another day.

F

So we want to get rid of some electrodes that we know are bad I.

A

Totally forgot Medina has at all so.

F

We go processing and we go down the.

E

A advanced process, advanced processing, lab and.

F

Then we come down here and instead of calling them electrodes, they call them.

E

Knows little of accommodate reject.

C

E

E

F

So now we know the bad electrodes we had RIT on the far side before that went sideways.

E

A

They be Navajo, not some memo, but Lina Medina. We know.

E

That they were electrodes one two.

F

Two three and four didn't.

E

Hit them yet and.

F

They were at positions: zero meters, four meters, eight meters and 12 meters,.

A

That was a shitty Tomita por vida. A me down. Follow me that.

F

These are the Y's, we don't have any y values. These are the SEDs. We can ignore those that.

A

Lie, why is that a good idea, but.

F

We want to remove zero to 12, so the first four electrodes I.

F

A

F

You see what happened, not a good night, the way the system works is. It starts collecting from electrode, 1 and 72, because it works from the end to try to finish all the measurements that has to do on the first cable.

E

F

Gate every piece of data that was in that from 0 4, 8 and 12 have been removed. 0.

A

E

F

If we go down when we get to 16 in that first column,.

F

One little correction would somebody in this some people know about we I accidentally loaded, a file that had five meter spacing instead of four meter, spacing.

A

But let me look at homee. That's missing, ah find me. That's bathing okay, yeah.

F

F

Maybe before we go any further, I'll show you how to correct that one.

A

So you make mistakes with the find me there. I know.

F

It's hard to believe I made. It was what.

F

That's a joke, so I want to correct by accident. I put five meter spacing in the sequence file. I want it to be four meter spacing in the sequence, file sequence.

A

Find my dog namitha the money you gonna get on it, so they can tell mommy.

E

That speaking loads in it or not so actually I'm.

F

E

F

Back and reopen that dipole-dipole.

E

And I thought would that movie I put bang I'm just.

F

Going to open the original one, so we can see so you can see how it goes: 0, 5, 10, 15, 20, oh.

E

Yeah Wow so I need to modify my spacing and I'll get WB ma anything.

F

Oh now these are the X's. The first four are the X Y and Zed again we ignore y&z and one of them's HEPA, my divine. This is the spacing of the a electrode spacing of the be electrode spacing of this M and n.

E

Electrons, okay, eighty yet speaking me down so I need to make those four.

A

Pull-Pull-Pull reunified a.

F

Way to that right.

C

Understatement.

E

E

That's what was the one.

D

Bug again, what's.

F

D

The fun to get to that it's.

F

Modify spacing it's not working for me right now,.

C

For some reason, it's.

F

The modify spacing.

F

Okay, so even the best of us get confused, so we're modifying it to four meter spacing the pony doesn't even yet now maybe I accidentally left it as increment, so it's shifted along instead of multiplying it. So I have my cheese, multiplied just.

E

Like that, you'll.

F

See what I mean.

F

And we're going from zero.

C

F

F

Whoo I said it's just the other week: I know I just I forgot.

E

D

Do you mean you can't offer done what's.

F

Up you can't do.

D

The equipment no.

F

You actually multiply it by pointing.

F

Nope is incremented, shifted, okay, I apologize. We had done five meter spacing we wanted four meter spacing, so we had to multiply everything by 4/5, which is point eight.

A

I mean that's been inhabited by my mom. Doesn't he lose your neck high that up? Oh yeah,.

F

So if I had done, four meter spacing and I meant to do ten meter spacing I would have to multiply by two point. Five.

A

F

Follow that I'll, just through it again yeah so I'm, going to read the original front opening game. There's a dipole-dipole I go to processing it's very awkward. The way they do it I'm going to multiply.

E

D

F

It's very awkward, this correction, but this works.

F

You can leave one in the other ones because it's not going to change, so we.

F

Want it to be four, not five, so it's for overdrive, which.

E

We're going from zero.

A

C

E

F

Is zero? We don't want to increment. We have money.

E

But if they already did the increment just.

F

Go from here into.

E

E

F

You did the increment, did you see how I always went back to the original file.

E

Origin, if I'm invited I'm gonna die.

A

F

Just easier to do that when you've made a mistake, the.

A

Room I'll get is ahead of you, so.

F

Now I'll just do the quickly in the autofill tree that we did there's only a couple more things we're going to try to cover today. So now, if I go back and I do the advanced to reject the note.

A

And then my man know, can we take the boy now.

F

I can actually reject reject this over the 12.

D

E

D

E

F

You saw that one already right.

A

F

Remember we wanted to reject the notes so reject from 0 to 12.

D

F

D

E

You go to advanced and Ben's with AMI. You have.

A

F

Reject know it nuts.

A

F

Then you say you want to get rid of from 0.

E

F

12 in Japan, so that was electrodes 1 2, 3, &, 4 Suroosh.

A

Alvi spin it illegally, maybe that's fading.

A

I think I'm. If you leave me down well, maybe that doesn't mean without them.

F

So see, there's the first time we get to an electrode. That's not 0 to 12 16! That's electrode number.

E

5 6 the inability.

A

To see the church, am I protecting I 1 2 3 4 I might want our hospitality technical.

F

So we get one more chance to practice. This is everybody. Good did.

E

A

E

C

C

F

A

F

Next I believe.

A

I spacing again, what's.

C

A

What, if I'm spacing modifies.

F

Do it again yeah yeah, so we're going to do it again now, because we're also getting rid of the last eight eight electric.

A

F

Going to remove the last eight electrons on.

E

This penis and.

A

That's what the boy you are: a secret Mexico Sam.

F

You know those electrodes.

E

Are 65 to 72 by a network? That's something.

A

Naughty when the 780 that's.

F

Not advice and.

A

I think it or not. That's.

F

Eight electrodes as I see so the position of the electrode 65 is to be 65 minus one. There is a 256.

A

F

It's electrode 65 minus 1 that equals 64 times 4. So it's actually a position. 256.

A

Never taught me that much you matter. How do you get 64? Why won't you 1 well.

F

If you, if you take the spaces between 1 and 6, to 5, there's only 64 spaces, obviously.

A

Five to go, no I mean that time is enough. One is the black part. Is it up? 64 meters, you're gonna grab a.

F

Spork I'm staining the electrode.

A

One is that zero meters.

F

Rate, it's not at 4 bits at 0 meters.

F

Up, let's take electrode to what position is electrode 2 at.

A

It was a Samba.

C

F

At 4 meters, maybe I know it's.

E

Not an 8 meters, it's at 4 news because they call me that.

F

So it's 2 minus 1 times 4, so this one 65 minus 1 times 4 I mean it now mean that an electrode 72 is 72 minus 1 times 4, which is 284, and they asked to send me so, let's go back and we'll get rid of those electrodes, hey.

A

You get some people any.

F

Super nordic processing.

E

F

Will move slowly.

C

E

Advanced reject no be taken over by man.

F

So now we got want to get rid of from 256.

E

May not talk about name.

F

Is sitting to 280 forth.

F

E

With me, yeah, okay, okay, hey ba.

F

So, let's just take a look down at the end. It's.

A

Not manatees laughs, I'ma check my heart and.

F

So now it's turned off everyone that is, in those last eight collectors.

F

Okay, so I don't see this one and you can save it now.

E

Let's take the money.

D

F

So I'm going to save it as and you can use whatever you want. I generally do this, and as underscore and I call it some some.

A

Happy problems, the electrode removal and rejecting him.

A

F

We'll go over it.

E

A

Update is done and still the champ. It's not unchecked.

F

Ok, so now it was processing and past.

A

F

Everybody have the form even spacing.

E

A

I think not sounding it.

C

Is a movie man.

A

C

There's no word.

F

In 40 years face.

E

F

E

D

C

C

C

F

Problems, anybody have any.

E

So that's that's great for.

A

Today, okay, usually exactly do you hit it now, you.

E

F

Do that correction to your winter Schlumberger as well, and.

A

Now a witness, no Janine na and notes about it. Well done you things on 0 to 12.

E

256 to qat for any natural deepening and you.

F

Don't have to do this, you don't have to do the 0.8 shift because you're, where nurse numbers it was collected at four meters.

F

So you don't have to multiply the winter Schlumberger.

C

F

You can do that tonight and you'll be ready for tomorrow to do the inverted gene.

A

E

Okay thanks, everyone.

B

Yes, the GWB team would like to invite everybody out for money tomorrow.

A

Request how about after work after like dinner or something Oh instead.

E

Of mothers, okay, maybe eat a lot of at.

A

Longview in our work in the afternoon, and also we do have to spend a lot of time to manage in one hour that.

B

Sounds that sounds good after work. Yes, I'm.

A

Ready sounds good, so how about that would be.

B

Like you know,.

C

A

Also me now Tommy. Sorry, let me I thought anything about my family like anybody. She like.