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From YouTube: Enrique Curchitser Regional Ocean Modeling
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A
Cook,
hello,
as
Frank
said
today,
we
are
going
to
focus
on.
We
have
three
talks
focused
on
Regional
implementations,
with
Ocean
Models
with
Mom
six,
and
the
way
this
is
a
Loosely
structured
is
I'm
going
to
start
with
an
overview
of
kind
of
what
got
us
here
and
our
design
Philosophy
for
the
essentially
open
boundary
conditions
that
have
been
implemented
in
the
mom6
code
and
then
Kate
is
going
to
follow
that
with
a
more
step-by-step
practical
in
case.
A
You
wanted
to
run
out
right
after
our
clouds
and
set
up
your
own
Regional
configuration
with
Mom
6
what
you
might
need
to
think
about
and
do
and
then
well
helper
later
on,
who
has
been
independently
working
with
this
code
in
some
applications
in
Nordic.
B
A
He
will
dug
a
little
bit
more
deeply
into
the
applications.
My
talk
is
going
to
be
half
and
half
a
little
bit
on
on
what
the
boundary
conditions
are,
as
as
they
are
right
now
and
then
some
some
early
applications
of
of
these
configurations.
A
A
With
so
that
seemed
like
good
targets
to
for
us
to
get
going
in
terms
of
configuring,
mom
6
Regional
this.
This
is
a
slide
here
that
is
changing
by
the
day
in
an
exciting
way.
You
know
this.
This
whole
project
started
I.
A
Guess
it's
about
three
or
four
years
ago
now,
where
we
were
looking
to
have
a
regional
model,
they
might
have
the
same
Dynamics
and
numerics
that
some
of
the
global
models
have,
as
the
as
the
global
models
are
moving
towards
higher
and
higher
resolutions,
they're
beginning
to
think
in
terms
of
some
of
the
physics
that
might
be
interesting
to
higher
resolution,
Regional
models
and,
in
the
same
breath
there's
a
lot
of
experience
in
the
regional
modeling
ocean,
modeling
community,
at
high
resolutions
and
Coastal
processes
that
could
be
of
benefit
to
the
global
models
and
it
seemed
like
it
was
time
to
really
and
the
models
have
matured
enough
that
it
seemed
like
it
was
time
for
us
to
to
try
to
work
with
one
code
base
that
can
handle
both
the
global
and
the
regional
models.
A
So
naturally,
at
the
time
we
got
together
with
with
the
folks
at.
A
And
they've
been
obviously
involved
with
with
us
in
the
development
of
regional
mom
6
from
from
the
get-go
and
then
of
course,
Kate
hedstrom
at
University
of
Alaska
Fairbanks
has
been
significantly
involved
and
there's
other
people
here
at
ncar,
as
well
as
they're,
beginning
to
pick
up
so
there's
a
there's,
a
beachhead
form
there
for
regional
applications,
especially
especially
with
Mom
six
now
and
there's
others
and
I'm
forgetting
people.
There
are
people
that
are
not
named
here,
but
there's
other
people
that
are
slowly
beginning
to
pick.
A
Well,
so
there's
there's
a
burdening
community
for
for
these
applications
and
interest
in
this
work,
so
I'm
not
going
to
go
into
the
design
of
mom
six
Bob
Holberg.
Did
that
I?
A
Think
in
the
first
of
the
series
here
and
there
was
a
nice
and
comprehensive
talk
about
all
the
equations
and
numerics
that
go
so
I'm,
just
gonna
kind
of
informally
describe
what
we
were
trying
to
achieve
with
the
with
the
implementation
of
open
boundary
conditions
in
mom
six
and
then
I'm
gonna
jump
to
to
some
some
of
our
early
applications
showing
you
where
we
are,
what
the
strengths
are
and
and
what
we
still
have
to
to
work
on.
A
So
based
on
on
some
of
our
past
experience,
where
we
try
to
merge,
you
know
ROMs
with
pop
and
thinking
in
terms
of
nested
climate
and
some
of
the
experience
that
the
atmospheric
people
have
in
terms
of
nesting.
We
wanted
to
have
a
fairly
General
definition
of
what
a
boundary
condition
is
or
what
an
open
boundary
condition
can
be
and.
A
Of
the
domain,
so
it
could
be
like
a
natural
boundary,
that's
where
you're
running
out
of
your
original
model,
or
you
could
think
of
them,
also
as
an
internal
segment,
which
is
an
internal
boundary
which
is
formed
out
of
various
segments.
That
is
a
basically
a
line
of
points
where
you
may
be
solving
a
different
set
of
equations
in
this
case
radiation
equations
that
will
mimic
what
an
open
boundary
condition
is.
A
A
So
so
that's
how
these
things
were
conceived
and
if
you
look
a
little
bit
more
practically
what
that
means.
You
have
your
domain,
that's
your
Insight
right
and
you
have
some
information.
That's
sitting
outside
here.
You
have,
for
example,
internal
boundary
segment
or
series
of
segments
and
interior
boundary,
so
boundary
line,
that's
formed
out
of
four
segments
and
to
get
information
to
the
inside.
A
You
don't
necessarily
rely
or
you
don't
rely
on
any
information
that
sits
outside
of
your
your
boundary.
So
it's
all
internal
to
whatever
information
you
have
on
Dr
Kawa
C
grid,
which
is
what
mom6
is
the
information
that
you
need
to
pass
across.
A
boundary
is
the
free
surface,
the
normal
velocity
and
and
the
tangential
velocity,
which
is
was
something
new
to
us
coming
from
the
ROMs
world.
A
That
is
due
to
the
what
I
think
Bob
described
in
his
first
talk
the
vector
invariant
formulation
that
comes
in
so
you
and
I'll
I'll-
mention
that
again
a
little
bit
later.
A
B
A
A
But
that's
that
turns
out
to
be
a
slightly
more
complicated
question,
Beyond,
a
very
simple
implementation
of
that
because
of
the
ale
vertical
coordinate,
so
the
boundary
conditions
are
such
for
the
barotropic
mode.
We
are
using
flatter
condition,
which
requires
the
specification
of
the
barotropic
and
the
free
surface
outside
of
or
on
the
edge
of
your
domain.
A
So
we
call
these
external
values,
and
this
has
worked
really
well
for
us
in
ROMs,
and
it's
working
very
well
in
in
some
six
equivalent
as
well.
The
problem
really
starts
once
you
go
to
the
bar
clinic,
so
all
the
all
the
headaches
that
we
get
from
the
from
the
open
boundary
conditions-
and
there
are
plenty
they
come
from
from
this.
A
The
original
conditions
are
based
on
or
landscape,
so
radiation
conditions
which
have
been
modified,
which
will
only
specify
the
normal
phase
velocity.
So
you
do
a
radiation
condition
based
on
the
normal
phase
velocity
at
locally
at
the
boundary,
and
it's
been
modified
in
the
80s
I
think
was
84,
so
the
paper
by
Raymond
and
quo
that
allows
you
to
consider
both
the
well
that
paper,
I
think
was
3D.
A
You
can
do
the
two-dimensional
radiation
or
oblique
condition
for
for
the
face,
speed
and
based
on
those
you
can
compute
the
local
normal
phase,
speed
at
the
boundary,
and
here
in
this
equation,
the
the
fear
are
the
phase
speeds
at
both
X
and
Y.
If
you
will
directions
and
again
they're
functional
of
local
local
information,
this
is
for
the
outgoing
and
on
the
inflow.
A
You
can
set
it
to
either
zero
gradient
or
you
can
nudge
these
things,
as
has
been
done
in
ROMs
to
some
external
value,
and
then
you
can
set
this.
What
these
Notch
and
coefficients
are.
So
if
you
have
information
that
you
really
trust-
and
you
want
the
interior
of
your
model,
to
really
move
towards
that
particular
value
quickly-
you
can
set
a
very
short
time
scale.
But
if
you
have
waves
that
are,
for
example,
leaving
your
domain,
you
can
set
it
on
a
year
or
300
days
or
whatever
makes
sense
for
that
particular
application.
A
Basically,
it
gives
you
two
tunable
knobs
that
you
can
use
to
to
try
to
to
work
the
the
boundary
conditions
to
look
as
best
as
they
can
for
each
particular
implementation.
There
really
is
no
canonical
value
that
you
could
use
for
this.
For
those
of
you
here
that
are
not
thinking
about
open
boundary
conditions
on
on
a
on
a
daily
basis.
A
The
open
under
condition
problem
is,
is
difficult
because
it's
a
mathematically
ill-defined
problem
for
the
barotropic
mode,
which
is
closer
to
a
hyperbolic
system.
The
phase
speeds
and
the
characteristics
are,
are
much
are
known
and
not
so
for
our
Clinic
velocity.
So
we
end
up
at
the
end
of
the
day,
trying
to
over
specify
the
problem
to
to
constrain
it
to
to
look
reasonable.
A
So
a
lot
of
the
intuition
of
of
that
you
have
about
a
particular
domain
or
flow,
and
the
way
it
should
look
like
comes
into
into
implementing
any
particular
domain
that
you
have
as
I
mentioned
before
in
mom
6.
We
have
the
need
to
bring
in
the
tangential
velocity
as
well
and
that's
needed
in
the
string
and
vorticity
for
computational
Australian
vorticity.
A
Again,
vorticity
is
used
in
the
Coriolis
term,
which
arises
from
the
vector
and
variant
formulation
that
Mom
6
uses
it
can
be
set
to
to
a
zero
gradient,
so
a
free
slip
or
you
can
specify
values
for
the
gradient
of
the
velocity
or
you
can
compute
them
from
the
radiation
condition
or
you
can
always
specify
zero
strain
as
well
tracers.
This
is
still
an
emerging
development
there.
There
are
prototypes
for
this
now
a
lot
of
work
done
in
the
last
few
weeks,
and
this
is
coming
online,
hopefully
in
short
order.
A
The
way
they've
been
designed
is
to
have
a
reservoir
of
that
has
memory
of
the
fluid
that
left
the
domain
and
then,
as
information
comes
in,
you
can
then
mix
it
and
set
up
mixing
lengths
relative
to
the
contribution
of
each
tracer
on
the
inflow
and,
as
I
alluded
to
before,
the
layer
thickness,
the
layer
thickness,
that's
used
in
both
continuity
and
the
Coriolis
computation
right
now.
A
A
So
if
you
look
at
the
code
and
Kate
will
talk
about
this
a
lot
more
in
her
talk
is
you
can
basically
set
it
to
be
simple
condition,
so
you
clamp
it
to
some
value
or
gradient
or
the
feather
for
the
verotropic
mode,
and
we
have
our
Lansky
and
oblique
for
for
the
radiation
and
and
then
you
can
nudge
these
things
to
the
paraclinic
modes
to
with
particular
time
scales,
to
either
ease
or
or
or
or
impose
boundary
conditions
at
different
time
scales.
A
So
the
first
thing
that
was
done
for
the
development
there's
a
I
think
two
or
three
different
at
least
test
cases.
We
would
recommend
to
for
people
to
start.
A
If
they
want
to
play
with
these
things,
the
first
one
was,
this
thing
called
the
dumbbell.
You
can
see
the
shape
of
it
in
the
in
the
top,
and
that's
your
full
domain
and
the
middle
and
bottom
layers
here
are
two
different
boundary
conditions.
So
basically
we
cut
it
out.
It's
exactly
the
same
grid,
except
that
now,
instead
of
having
before
domain,
you
will
extract
boundary
conditions
from
where
you
have
those
vertical
blue
lines
and
and
impose
them
at
the
impose
them
it
does
at
their
boundaries.
A
And
you
see,
of
course,
that
high
enough
resolution,
the
models
start
diverging
from
each
other
because
of
the
implementation
of
the
boundary
condition.
A
And
there's
there's
a
few
other
test
cases
out
there
for
for
people
to
to
play
with,
and
if
you
want
to
actually
play
with
it
boundary
condition
itself
you
can.
You
can
try
to
test
it
on
those
things
so
I'm
going
to
move
now
on
in
the
next
10
or
so
minutes
to
to
different
implementations
that
we
have
the
one
that's
most
advanced
for
us
is
the
one
in
the
Northwest
Atlantic.
A
This
is
a
model
that
we've
developed,
I
guess
2013
was
published
and
it's
relatively
cheap
to
run
for
several
decades,
but
it's
big
enough
that
it
gives
us
some
some
sense
of
of
how
the
model
is
doing,
and
we
have
a
lot
of
experience
with
this
and
running
it
with
ROMs
and
many
many
papers
that
came
out
of
this
already
and
we
are
seeing.
If
you
look
at
the
bottom
right
now,
it's
being
run
with
three
different
vertical
coordinates.
One
of
them
is
with
a
Z
star
with
50
vertical
layers.
A
One
is
the
Z
star
with
75,
so
higher
resolution,
the
vertical
and
one
is
with
the
high
Comm
1,
which
is
a
coordinate
system
that
sixes
adapted
or
borrowed
from
from
high
Comm
implementations,
where
it's
an
isopicinal
interior
transitioning
to
to
a
z,
to
a
z-star
coordinate
on
the
Shelf.
A
Here,
here's
your
eye
candy
for
today
this
is
basically
you're.
Looking
at
noise
vorticity
here
and
again,
this
is
what
what
you're
saying
is
that
we
are
now
able
to
run
mom
6
has
a
regional
configuration
and
begin
are
beginning
to
look
at
features
that
look
to
at
least
to
the
eye
as
it's
recognizable
or
for
this
particular
part
of
the
world.
A
If
you
tune
your
eyes
closely
to
I,
don't
know
if
you
can
see
my
my
mouse
or
not
to
the
boundaries.
You
will
see
that,
though
they're
not
perfect,
and
here
you
can
see
some
some
ringing
Reflections
from
it.
They
are
working
reasonably
well
at
least
compared
to
what
we
typically
used
to,
and
we
have
run
this
now
in
various
configurations.
For
about
a
decade.
Each
here
is
looking
at
the
Gulfstream
path.
A
This
is
work
that
tujuan
Kang
in
my
lab
at
Rutgers,
is,
is
carrying
out
so
two
different
ways
of
of
looking
at
the
Gulfstream
path,
which
is
the
Dots
here.
So
the
dots
are
the
observation.
A
Look
at
the
two
different
vertical
coordinates,
so
one
degree
of
Freedom
that
we
have
with
Mom
six
that
we
never
did
with
ROMs
is
the
ability
to
have
different,
not
only
a
mixed
vertical
coordinate
system,
but
just
different
coordinate
systems
period
right
so
so
this
is
what
it
looks
like
right
now
we
are
trying
to.
A
C
A
Don't
have
a
sense,
a
priority
of
what
that
might
be
I
mean
I
could
justify
to
myself
why
I
may
want
a
pure
as
a
picknel
or
a
sigma
or
a
z,
but
in
reality,
I
think
this
is
going
to
be
very
much
domain
and
configuration
dependent,
and
so
we
need
to
start
figuring
out
how
we
are
actually
going
to
quantify
these
things.
So
in
this
case
we
are
looking
at
at
the
total
mean
and
adding
kinetic
Energies.
A
Here's
comparing
the
two
vertical,
the
two
vertical
coordinate
systems
with
with
the
same
number
of
vertical
layers,
so
75,
and
you
see
that
there
are
significant
differences
right.
So
just
taking
the
code
and
running
it
with
this
hybrid
isopycnel
C,
which
is
the
high
comm1
coordinate
system,
we're
running
it
with
simply
Z
Star.
A
If
you
look,
for
example,
just
south
of
and
offshore
the
separation
pointed
header,
as
you
see
that
there's
a
much
stronger
recirculation
in
the
hicom
case
that
that's
generating
a
lot
of
local
energy
which
which
in
in
theory,
is
being
absorbed
from
somewhere
else
in
the
code.
So
this
is
just
again
us
building
experience
with
with
this
model
and
highlighting
to
everybody
in.
B
A
Hatteras,
you
can
see
that
even
the
the
structure
in
the
vertical
interior
of
the
ocean
can
be
quite
different
between
the
two
vertical
coordinate
systems
before
that,
okay
I've
asked
people
that
have
been
involved
early
on
in
these
implementations.
To
to.
Please
provide
me
with
some
some
input
on
on
what
they're
doing
with
original
mom6,
so
Alan
Warcraft
and
Eric
at
Florida
State.
They
are
moving
to
implementing
their
their
Navy
Global
Ocean
Prediction
Global
Ocean
Prediction
system
to
Mom.
A
Six,
though
I
think
I
believe
it's
still
going
to
be
called
high.
Comm
I,
don't
know
Alan,
which
I
think
is
on.
The
call
can
can
clarify
that
for
people
that
are
interested
and
they
are
starting
with
a
global
112
degree,
and
they,
if
we're
not
right,
now
running
it
with
with
a
repeat
atmospheric,
forcing
for
for
10
model
years,
and
then
they
are
taking
this
and
then
extracting
a
North
Atlantic
112th.
So
it's
the
same.
B
A
B
B
A
This
is
an
implementation.
I
have
a
few
more
minutes
here.
This
is
an
implementation
from
from
Kate
headstrom,
who
will
be
giving.
B
A
Ice
model,
the
figure
on
the
left
is
ice
thickness
after
some
some
time
of
simulation,
and
this
is
not
the
great
solution.
But
what
was
happening
is
was
that
the
sea
ice
was
not
able
to
leave
the
domain
down
by
Greenland.
So
it
was
accumulating
and
I
believe
that
since
then,
working
between
work
between
Kate
and
Bob
Holberg
they've
designed
a
boundary
condition
that
allows
the
CIS
to
advect
out
of
the
domain,
and
this
is
looking
much
better
now
than
than
this
figure
shows.
But
this
is
just
again
highlighting
a
configuration.
A
The
figure
on
the
right
is
an
initial
ice
concentration
that
was
recently
implemented
so
that
you
can
start
a
regional
simulation
now.
I
guess
the
global,
as
well
probably
with
a
specified
ice
from
in
this
case
from
Maria
analysis
course.
I
believe
and
you
don't
have
to
start
it
from
zero
and
go
through
several
years
of
integration
to
start
forming
ice.
A
Okay,
this
is
I,
have
I,
think
two
more
slides
here.
This
is
a
mom
six
implementation
in
the
California
Current.
This
is
one
of
our
old
bronze
domains
that
Liz
drankard,
who
is
now
at
gfdl,
used
to
work
in
my
lab
and
again
in
other
Regional
area
that
we've
had
Decades
of
experience
in
trying
to
configure
and
run
this
domain
and
I'm
putting
it
here,
because
it
shows
you
some
of
the
difficulties
that
you
see
with
the
open,
Modern
condition.
A
You
start
seeing
this
again
you're
looking
at
vorticity
here,
you
start
seeing
these
room
currents,
especially
on
the
western
boundary.
So
we've
always.
This
has
always
been
a
challenge:
a
challenging
domain
for
us
somehow
in
the
Northwest
Atlantic
model,
where
this
adjective
flows
dominate
the
solution.
A
We
we
seem
to
do
better
than
here,
where
you
have
these
rossly
waste,
trying
to
to
go
out
and
they're,
not
quiet,
seeing
they
are
seeing
a
wall
they're
not
quite
seeing
nothing
there,
and
these
Reflections,
then
I,
guess
through
local
dissipation
and
other
processes
start
forming
these
currents
that,
with
this
Divergence
at
the
boundary,
which
then
drives
a
long
boundary
flows,
and
you
see
some
example
that
I
would
add
that
this
looks
no
worse
or
yeah,
no
worse
than
any
solution
that
we
ever
did
with
ROMs
with
this
kind
of
configuration.
A
So
it's
a
good
Target
for
us
to
to
try
to
both
understand
how
Mom
6
is
working,
but
also
on
how
to
improve
it
and
the
way
that
we
so
I'm
going
to
move
on
to
this
is
a
slide.
I
just
got
about
10
minutes
ago
from
Scott
Bachmann,
and
the
reason
I'm
going
to
put
it
here
for
a
couple
of
reasons
first,
is
to
show
another
Regional
configuration.
This
is
in
the
eastern
tropical
Pacific.
This
is
a
recent.
It's
a
project
that
was
recently
internally
funded
at
ncar.
A
It's
going
to
yeah,
but
being
an
eastern
boundary
condition.
The
first
thing
that
an
eastern
boundary
type
domain,
one
of
the
first
calls
I
got
from
Scott,
was
about
the.
C
A
Currency
I
just
showed
you
in
the
California
Current
before
and
the
way
we
typically
control
those
with
with
in
ROMs
for
very
long
Integrations
was
to
add
nudging
or
response
layers
near
the
boundaries
and
I
think
he's
taking
ownership
of
trying
to
do
that
for
or
Mom
six
as
well
and
other
Novelties
of
what
this
particular
domain
will
do
is
to
add
surface
wave,
forcing
as
well
as
lagrangian
particle
releases
and
very.
A
Also,
a
very
high
resolution
order,
kilometer
or
two
I
believe
atmospheric
Fortune
with
empath.
So
not
only
are
we
going
to
have
a
high
resolution
ocean
here,
but
also
also
a
very
high
resolution
atmospheric
forcing
and
again
this
is
one
of
the
nice
features
of
having
this
Regional
model.
Is
the
ability
to
test
all
kinds
of
configurations
and
couplings
like
that?
That
would
be
much
harder
to
do
in
a
go
in
a
global
in
a
global
sense.
A
So
that's
really
all
I
wanted
to
show
for
today.
You
know
the
the
summary
here
is
that
this
community
is
is
rapidly
building
and
the
applications
that
are
being
used
are
from.
A
And,
of
course,
we
have
our
term
interest
in
climate
and
downscale
climate
for
Coastal
applications
for
fisheries
and
ecosystem
work
as
well.
You
have
the
sense
that
this
is
a
hotter
balloon,
that's
kind
of
taking
off
and
we're
still
trying
to
load
it
with
some
features.
I
would
say
that
we're
not
quiet
at
version
one
yet,
but
we
are
very,
very
close
and
some
of
the
imminent
development
that's
going
to
get
us
there
quickly
is
the
inclusion
of
explicit
Tides
there's
over
the
Andrew
Ross
who's.
A
A
young
postdoc
at
gftl
has
taken
that
on
and
there's
also
already
prototype
for
some
of
the
title
components.
So
we
expect
that
within
the
next
three
to
four
weeks,
there
will
be
a
full
implementation
of
explicit
tides
in
the
original
mom
6,
so
that
we
can
force
it
through
the
boundaries,
Tracer
and
biogeochemistry
boundary
conditions
are
being
worked
on
by
Nikki
zadeh,
also
gfdl.
He
just
started
on
this
in
the
last
couple
of
weeks.
There
are
some
conversations
going
on
right
now
as
to
what
would
be
the
most.
A
A
Our
long-term
wish
list
remains
from
from
decades
or
years
of
working
with
regional
models
is
to
have
a
robust,
two-way
nesting
capability
so
that
we
can
run
Global
and
quite
Global
and
Regional
models,
synchronously
in
a
downscale
situation
and
and
looking
not
only
the
impact
that
the
large-scale
climate
may
have
on
regionals
domains,
but
also
what
impact
will
resolving.
A
Some
of
these
Coastal
features
may
have
on
large-scale
climate,
and
it
would
be,
and
I
I
believe
that
there's
Moves
In
This
within
ncar,
in
particular,
to
fully
embed
our
regional
ocean
model
in
the
global
couple
model.
So
then
we
can
take
advantage
of.
C
A
You
know
is
it
time
now
to
think
about
improving
the
actual
dynamics
of
boundary
conditions,
Beyond
this
Raymond
quo
or
or
landscape
type
conditions
and
there's
some
ideas
that
that
we've
been
floating
around-
and
this
is
perhaps
a
much
longer
term
wish,
but
I'm
hopeful
that
we
can,
that
we
haven't
seen
the
best
open
boundary
condition,
implementations
out
there.
Yet
so
I'll
end
with
that
I'm
happy
to
to
answer
any
questions
that
people
may
have.
B
Okay,
I
think
Steve
Griffeys
is
up
first
go
ahead,
Steve.
C
Yeah
I
was
hoping,
you'd
read
it
Frank,
but
all
right.
So
a
detailed
question
on
the
the
Bear
Clinic
OBC
slide,
where
you
were
talking
about
orlansky
use
the
symbol.
Phi
is
that
in
the
model
does
that
correspond
to?
U
and
v
the
horizontal
velocity
or
something.
A
A
B
A
Then,
based
on
that,
then
you
can
either
radiate
your
your
velocity
out
or
or
take
a
value
from,
let's
say,
a
boundary
condition,
file
that
you
may
have,
or
from
an
external
model.
C
Okay,
so
it
gives
you
causality
or
characteristics,
okay,
how
how
readily
extensible
is
the
OBC
code
to
two-way
nesting,
and
do
you
think
you
need
something
like
agrif
or
would
your
vision
be
something
independent
of
something
in
an
external
package.
A
I
would
like
to
see
it
independent
of
agrif
I
mean
agrif.
Had
some
okay,
I
should
start
by
saying
I
I've
only
read
about
it.
I
reviewed
some
papers
on
it,
but
I
I
haven't
actually
run
it
myself,
but
I
think
the
Griff
code
had
some
some
constraints
to
the
way
you
could
implement
this
right,
so
you
had
to
have
collocated
grids
and
I
think
it
it
limits
when
I
was
looking
at
it.
A
I
think
the
two-way
nesting
will
require
some
thought,
but
I
think
what
we
have
done
right
now
is
within
the
mom6
code
is
designed
that
the
data
structure
that
holds
the
boundary
condition
code
to
to
deal
with
it.
Whichever.
C
A
We
we
ultimately
end
up
implementing
it,
so
I
I,
don't
think
that
we
are
quite
ready
for
that,
but
and
there's
probably
a
much
broader
conversation
that
needs
to
have
that
needs
to
happen
as
to
what
would
make
sense
to
do
it,
but
I
would
not
necessarily
go
down
the
pathograph
from
what
I
read
about
it.
B
Are
there
questions
for
Enrique
Enrique
is
Tony
Rosati,
hey.
A
B
Just
curious
how
you
envision
going
forward
not
just
on
the
ocean
side
but
on
the
atmospheric
side,
especially
to
are
you
thinking
of
a
grid?
That's
the
same
as
the
grit.
The
ocean
Grid
in
terms
of
resolution
I
mean
I'm,
just
thinking
about
how
you
would
use
this
in
predictions.
A
Well,
so
so
are
you
talking
about
sort
of
weather
scale
or
are
we
talking.
B
A
Maybe
ultimately
might
make
sense
for
the
coupler
to
also
negotiate
ocean
ocean
coupling
right,
I
think
what
we
want
at
first
is
the
flexibility
to
be
able
to
run
the
original
model
Standalone
as
we're
doing
now
or
within
the
coupled
system
and
extracting
ocean
boundary
conditions,
either
from
a
file
from
re-analysis
or
from
a
larger
scale
model
right.
So,
for
example,
in
the
Atlantic
I
think
that
it
would
make
sense
to
use
something
like
what
Allen
and
Eric
are
running
at
FSU,
where
you
have
a
North
Atlantic
model
at
a
reasonably
high
resolution.
A
B
A
B
B
A
They
would
each
they
would
each
have
some
advantages
and
disadvantages
right.
If
you
can
run
concurrently,
you
can
help.
So
one
of
the
one
of
the
things
that
we've
learned
with
with
ROMs
over
the
years
is
that
the
higher
frequency
that
you
can
provide
the
boundary
conditions.
The
better
Your
solution,
looks
very
often,
especially
those
California
currents
right.
So
when
we
first
started
forcing
with
monthly
boundary
conditions,
it
was
horrible.
You
know
we
went
to
weekly
was
better
and
then
you
do
some
experiments
and
even
higher
frequency.
A
There
was
an
improvement,
and
your
domain
may
require
that.
Maybe
there's
some
areas
that
you
don't
and
you're
happy
right.
So
if
you're
can
run
concurrently,
you
can
go
down
to
almost
a
delta
T
right
to
to
run
them
together
and.