Bill Bell Bryan Conway and John Eyre Met Office, UKApr 18, 2007  · on for microwave instruments • Mapping to common grid (e.g. HIRS fields of view) ... = 10 for 85 corrected in

Page

1Pa

ge 1

The

EU

ME

TSA

TS

atel

lite

App

licat

ions

Fac

ility

for N

WP

(NW

P S

AF)

Bill

Bel

l

Bry

an C

onw

ay a

nd J

ohn

Eyr

e

Met

Offi

ce, U

K

JCSD

A pr

esen

tatio

n 17

thAp

ril 2

007

Page

2Pa

ge 2

Out

line

oB

ackg

roun

d / M

issi

on /

Peo

ple

oP

roje

cts:

•A

AP

P•

RTT

OV

•1D

-Var

•Q

uick

scat

Dat

a P

roce

ssor

/ SD

P•

Mon

itorin

g re

ports

•S

SM

IS_P

repr

oces

sor

•S

uppo

rt to

EA

RS

oC

oncl

usio

ns

Page

3Pa

ge 3

NW

PS

AF

back

grou

nd

Oth

er S

AFs

incl

ude:

oce

an &

sea

ice,

clim

ate,

ozo

ne

and

Gra

sN

WP

SA

F de

liver

s so

ftwar

e m

odul

es fo

r use

in D

A

syst

ems

( oth

er S

AF’

sde

velo

p pr

oduc

ts)

Pha

ses

incl

ude

:5

year

dev

pha

se (1

998

-20

03)

3 ye

ar in

itial

ope

ratio

nal p

hase

(200

3 -2

006)

cont

inuo

us d

ev a

nd o

pera

tions

pha

se (2

007

-)M

anag

emen

t : S

teer

ing

grou

pS

oftw

are

deve

lopm

ent u

nder

qua

lity

syst

ems

(ded

icat

ed Q

A/Q

C a

t loc

al le

vel,

revi

ew p

roce

ss)

Vis

iting

sci

entis

ts (t

o ac

cele

rate

the

deve

lopm

ent o

f de

liver

able

s / t

rain

ing

1 da

y -2

yea

rs)

Page

4Pa

ge 4

The

NW

P S

AF:

bac

kgro

und

•Sat

ellit

e A

pplic

atio

ns F

acili

ty fo

r Num

eric

al

Wea

ther

Pre

dict

ion

(NW

P SA

F)

•one

of 8

SA

Fsth

at fo

rm p

art o

f the

dis

tribu

ted

grou

nd s

egm

ent o

f EU

ME

TSA

T

•Led

by

the

Met

Offi

ce, i

n pa

rtner

ship

with

EC

MW

F, K

NM

I and

Mét

éo-F

ranc

e

•75%

-fund

ed b

y EU

MET

SAT

Page

5Pa

ge 5

The

NW

P S

AF:

mis

sion

MIS

SIO

N

•To

impr

ove

and

supp

ort t

he in

terfa

ce b

etw

een

sate

llite

dat

a/pr

oduc

ts a

nd E

urop

ean

activ

ities

in

glo

bal a

nd re

gion

al N

WP

Page

6Pa

ge 6

The

NW

P S

AF:

peo

ple

•M

anag

er:B

.Con

way

•Pr

ojec

t Tea

m:

•M

et O

ffice

:S.E

nglis

h, R

.Sau

nder

s, D

.Offi

ler,

N.A

tkin

son,

W

.Bel

l, J.

Cam

eron

, B.C

andy

, A.D

oher

ty, M

.For

syth

e,

P.F

ranc

is, R

.Fra

ncis

, F.H

ilton

, S.K

eogh

, U.O

’Kee

ffe, E

.Pav

elin

, P

.Ray

er, S

.Wat

kin

•EC

MW

F:T.

McN

ally

, P.B

auer

, A.C

olla

rd, A

.Gar

cia-

Men

dez,

H

.Her

sbac

h, G

.Kel

ly, J

.-N.T

hépa

ut, G

.Van

derG

rijn

•M

étéo

-Fra

nce:

P.B

rune

l, T.

Labr

ot, L

.Lav

anan

t, P

.Mar

guin

aud,

A

.Mar

soui

n•

KN

MI:

A.S

toffe

len,

A.V

erho

ef, J

.Vog

elez

ang

•St

eerin

g G

roup

:J.E

yre,

L.S

arlo

, S.E

lliott,

J.O

nvle

e, P

.Pyl

kko,

F.

Rab

ier,

P.S

chlu

esse

l, A

.Sim

mon

s•

Visi

ting

scie

ntis

ts: M

any!

Page

7Pa

ge 7

The

NW

P S

AF:

pro

duct

s

At p

rese

nt:

•A

APP

-ATO

VS

and

AV

HR

R P

re-p

roce

ssin

g P

acka

ge•

RTT

OV

-fas

t rad

iativ

e tra

nsfe

r mod

el•

+ m

odel

-bas

ed p

rofil

e da

ta s

ets

•1D

-Var

retri

eval

sch

emes

•Q

DP

-Qui

ksca

tDat

a P

roce

ssor

•M

onito

ring

repo

rts

•SS

MIS

pre

-pro

cess

or

Und

er d

evel

opm

ent:

•U

pdat

esto

the

abov

e•

SDP

-Sca

ttero

met

erD

ata

Pro

cess

or

Page

8Pa

ge 8

The

NW

P S

AF:

AA

PP AA

PP

Page

9Pa

ge 9

The

NW

P S

AF:

AA

PP

Page

10

Page

10

The

NW

P S

AF:

AA

PP

The

ATO

VS

and

AV

HR

R P

re-p

roce

ssin

g P

acka

ge

•P

erfo

rms

ING

EST

and

PRE-

PRO

CES

SIN

Gof

ATO

VS

and

AV

HR

R

data •A

TOVS

= A

MS

U-A

+ H

IRS

+ A

MS

U-B

/MH

S•

ING

EST

•D

ecom

mut

atio

n•

Nav

igat

ion

•C

alib

ratio

n•

PRE-

PRO

CES

SIN

G•

Pre

cipi

tatio

n an

d cl

oud

dete

ctio

n fo

r mic

row

ave

inst

rum

ents

•M

appi

ng to

com

mon

grid

(e.g

. HIR

S fi

elds

of v

iew

)•

Clo

ud a

naly

sis

on A

VH

RR

pix

els

with

in e

ach

HIR

S fo

v

Page

11

Page

11

AA

PP

ver

sion

s 1

to 5

HR

PT

(NO

AA

sat

ellit

es)

ATO

VS

1a/

b

ATO

VS

1c

AV

HR

R 1

a/b

NE

SD

IS

Glo

bal A

TOV

S

EU

ME

TCas

tR

egio

nal A

TOV

S

(EA

RS

)

ATO

VS

1dS-b

and

1a =

cou

nts

1b =

cou

nts

+ ca

libra

tion

+ ge

oloc

atio

n1c

= ra

dian

ces

1d =

radi

ance

s m

appe

d to

com

mon

grid

e.g

. HIR

S

AA

PP

Page

12

Page

12

AA

PP

ver

sion

6 –

incl

udin

g M

ETO

P

ME

TOP

AH

RP

T(C

CS

DS

pac

kets

)

ATO

VS

+ A

VHR

RIA

SI ‘

leve

l 0’

+ A

VHR

R

ATO

VS

1a/

b

ATO

VS

1c

IAS

I 1c

BU

FR d

ecod

e

EU

ME

TCas

tG

loba

l IA

SI

EU

ME

TCas

tG

loba

l ATO

VS

+ E

AR

S

ATO

VS

/IAS

I 1d

ATO

VS

1d

BU

FR d

ecod

e

Exi

stin

g A

AP

P

OP

S

NB

: IA

SI 1

c =

calib

rate

d,

corr

ecte

d &

Gau

ssia

nap

odis

ed

Use

r opt

ions

(fle

xibl

e):

•AM

SU m

appe

d to

IASI

•Spa

tial t

hinn

ing

•Red

uced

cha

nnel

set

and

/or

•Eig

enve

ctor

sco

res

or G

TN

X-b

and

IAS

IP

re-p

roce

ssor

Page

13

Page

13

The

NW

P S

AF:

RTT

OV RTT

OV

Page

14

Page

14

The

NW

P S

AF:

RTT

OV

RTT

OV

-a

fast

radi

ativ

e tra

nsfe

r mod

el

•It

is u

sed

by N

WP

cen

tres

for s

ever

al a

pplic

atio

ns (e

.g. r

adia

nce

assi

mila

tion,

dat

a m

onito

ring,

sim

ulat

ed im

ager

y)

•Th

e N

WP

SA

F m

aint

ains

and

dis

tribu

tes

rece

nt v

ersi

ons

of R

TTO

V

(cur

rent

ly v

ersi

ons

7 &

8)

•Th

e la

test

ver

sion

, RTT

OV

v8,

was

rele

ased

in N

ovem

ber 2

004

•Th

e ne

xt v

ersi

on, R

TTO

V v

9, is

now

und

er d

evel

opm

ent a

nd w

ill b

ere

leas

ed in

Feb

200

7

Page

15

Page

15

RTT

OV

func

tiona

lity

©C

row

n co

pyrig

ht 2

005

05/

0178

M

et O

ffice

and

the

Met

Offi

ce lo

go a

re re

gist

ered

trad

emar

ks

•In

put p

rofil

es: t

empe

ratu

re a

nd w

ater

vap

our;

optio

nally

, ozo

ne a

nd

carb

on d

ioxi

de a

lso

as v

aria

ble

gase

s•

Com

pute

sto

p-of

-atm

osph

ere

radi

ance

s, b

right

ness

tem

pera

ture

s an

d la

yer-t

o-sp

ace

trans

mitt

ance

s fo

r eac

h ch

anne

l•

Com

pris

es:

forw

ard,

tang

ent l

inea

r, ad

join

tand

K (J

acob

ian

mat

rix)

mod

els,

for u

se in

var

iatio

nala

ssim

ilatio

n or

retri

eval

s•

Sea-

surf

ace

emis

sivi

ty: c

ompu

ted

inte

rnal

ly (I

SE

M-6

mod

el fo

r IR

, FA

STE

M fo

r MW

) or v

alue

pro

vide

d by

use

r •

Clo

uds:

•S

ingl

e-la

yer,

spec

trally

-inva

riant

•M

ulti-

laye

r, sp

ectra

lly-v

aryi

ng: u

sing

“wra

pper

”cod

e, R

TTO

V_C

LD•

Mic

row

ave,

with

sca

tterin

g: u

sing

“wra

pper

”cod

e, R

TTO

V_S

CA

TT•

Fort

ran-

90•

Run

und

er u

nix

or li

nux;

test

ed o

n ra

nge

of p

latfo

rms

•R

un-ti

me:

~ 0

.5 m

sfo

r 20

HIR

S c

hann

els

for 1

pro

file

on H

P w

orks

tatio

n

Page

16

Page

16

©C

row

n co

pyrig

ht 2

005

05/

0178

M

et O

ffice

and

the

Met

Offi

ce lo

go a

re re

gist

ered

trad

emar

ks

1-9

TMI

TRM

M1-

10W

indS

atC

orio

lis

1-17

, 1-2

378

1-15

, 1-4

,1-1

4M

OD

IS,A

IRS

AM

SU-A

, HSB

, AM

SRTe

rra

Aqu

a

FY-1

, FY-

2

GM

S-5,

MTS

AT

ERS-

1/2

ENVI

SAT

GO

ES-8

-12

Met

eosa

t-2-8

DM

SP F

-16

DM

SP F

-8-1

5

TIR

OS-

NN

OA

A-6

-18

NO

AA

-2-5Pl

atfo

rms

1-3,

1-2

MVI

SR, V

ISSR

1-3,

1-4

Imag

er

1-3

1-3

ATS

RA

ATS

R

1-4

1-18

Imag

erSo

unde

r

2 4-11

MVI

RI

SEVI

RI

1-24

SSM

I(S)

1-7

SSM

/I

1-19

, 1-4

1-3,

1-1

51-

5, 1

-5,

1-3,

1-8

HIR

S, M

SU,

SSU

, AM

SU-A

AM

SU-B

, MH

S,A

VHR

R, V

TPR

Cha

nnel

ssi

mul

ated

Sens

or

RTT

OV

–se

nsor

s su

ppor

ted

Page

17

Page

17

RTT

OV

-85/

87 s

tatu

s

Num

ber o

f lic

ence

requ

ests

= 1

87N

umbe

r of u

sers

pro

vide

d co

de ~

180

Num

ber o

f bug

s re

port

ed s

ince

rele

ase

= 10

for 8

5 co

rrec

ted

in 8

7 an

d 6

for 8

7 al

l min

or

Effic

ient

vec

toris

atio

nof

cod

e st

ill b

eing

wor

ked

on

for N

EC s

uper

com

pute

r R

ewrit

ten

RTT

OV_

SCA

TT c

ode

for R

TTO

V-87

Part

icip

ated

in A

IRS

RT

com

paris

on (s

ee s

epar

ate

talk

)

Page

18

Page

18

New

coe

ffici

ent f

iles

avai

labl

e

ME

TOP

n.b

. sat

ellit

e id

=2IA

SI a

vaila

ble

for R

TTO

V-7

and

8H

IRS

ava

ilabl

e A

MS

U-A

/MH

S a

vaila

ble

AV

HR

R a

vaila

ble

MS

G-2

SE

VIR

I ava

ilabl

e

GO

ES

-12

soun

der a

vaila

ble

Meg

aTro

piqu

es, S

aphi

rand

Mad

ras

Page

19

Page

19

RTT

OV

-9 d

evel

opm

ents

New

div

erse

pro

file

data

set –

incl

usio

n of

mor

e m

inor

ga

ses,

mor

e le

vels

Incl

usio

n of

mul

tiple

sca

tterin

g fo

r clo

udy

and

aero

sol

radi

ance

cal

cula

tions

Line

ar in

tau

mea

n pa

th v

alue

sZe

nith

ang

le d

epen

denc

e of

pat

hIn

clud

e re

flect

ed s

olar

for S

WIR

Mor

e ac

tive

trac

e ga

ses

CO

, CH

4, N

2O,

Furt

her o

ptim

isat

ion

of p

redi

ctor

sIm

prov

emen

ts to

RTT

OV_

SCA

TT (n

ew M

ie ta

bles

)C

hang

e in

terf

ace

to a

llow

pro

file

inpu

t on

user

leve

lsC

hang

e in

terf

ace

to a

void

nee

d to

spe

cify

pol

aris

atio

n in

dex

Wha

t is i

nclu

ded?

Page

20

Page

20

The

NW

P S

AF:

1D

-Var

sch

emes

1D-V

AR

Page

21

Page

21

The

NW

P S

AF:

1D

-Var

sch

emes

One

-dim

ensi

onal

var

iatio

nalr

etrie

val –

1D-V

ar

Use

d fo

r:

•R

etrie

val o

f atm

osph

eric

/sur

face

var

iabl

es fr

om ra

dian

ce

mea

sure

men

ts

•N

WP

dat

a as

sim

ilatio

n –

pre-

proc

essi

ng a

nd q

ualit

y co

ntro

l

•R

esea

rch

tool

–ra

pid

expl

orat

ion

of n

ew d

ata

Page

22

Page

22

Var

iatio

nald

ata

assi

mila

tion

Ass

imila

ting

obse

rvat

ions

into

a N

WP

m

odel

Min

imiz

e:

J(x)

=

½(x

-xb )

TB

-1 (x

-xb )

+

½(y

o -H

[x])T

(E+F

)-1 (y

o -H

[x])

whe

rex

cont

ains

the

NW

P m

odel

sta

te

xbis

bac

kgro

und

estim

ate

of x

(sho

rt-ra

nge

fore

cast

)B

is it

s er

ror c

ovar

ianc

e,

yois

vec

tor o

f mea

sure

men

tsH

[...]

is “o

bser

vatio

n op

erat

or ”

or “f

orw

ard

mod

el”,

map

ping

sta

te x

into

“mea

sure

men

t spa

ce”

E is

erro

r cov

aria

nce

of m

easu

rem

ents

,F

is e

rror c

ovar

ianc

e of

forw

ard

mod

el.

∇xJ

(x)T

= B

-1 (x

-xb )

-∇

xH[x

]T(E

+F)-1

(yo -

H[x

]) =

0

Page

23

Page

23

1D-V

ar: s

imul

ated

IAS

I ret

rieva

l err

ors

back

grou

nd e

rror

retri

eval

err

ors

bias

SD

973

sim

ulat

ed re

triev

als

1000

IAS

I cha

nnel

s

mid

-latit

ude

win

ter p

rofil

e

Page

24

Page

24

The

NW

P S

AF:

1D

-Var

sch

emes

3 sc

hem

es a

re a

vaila

ble:

•“E

CM

WF”

•gen

eric

har

ness

–m

inim

isat

ion

sche

me

with

“hoo

ks”

•“M

et O

ffice

”•c

ompl

ete

sche

me

-ATO

VS

, AIR

S, I

AS

I

•“S

SM

IS”

•com

plet

e sc

hem

e -S

SM

I, S

SM

IS, A

MS

U

Page

25

Page

25

The

NW

P S

AF:

Sca

ttero

met

erpr

oces

sors

QD

P /

SD

P

Page

26

Page

26

The

NW

P S

AF:

Sca

ttero

met

erpr

oces

sors

•QD

P-Q

uiks

catD

ata

Pro

cess

or –

avai

labl

e N

OW

•In

put –

NO

AA

Qui

ksca

tpro

duct

in B

UFR

•P

re-p

roce

ssin

g –

sorti

ng a

nd s

patia

l ave

ragi

ng•

Win

d re

triev

al•

QC

–ra

in d

etec

tion,

etc

•A

mbi

guity

rem

oval

•M

onito

ring

and

outp

ut

•SD

P–

Sca

ttero

met

erD

ata

Pro

cess

or -

SOO

N•

Gen

eric

sca

ttero

met

erco

de•

ER

S S

CA

T, M

ETO

P A

SC

AT,

Sea

win

ds(Q

uiks

cat,

NS

CA

T)

Page

27

Page

27

Sca

ttero

met

er D

ata

Pro

cess

or

Obs

erva

tions

Inve

rsio

nA

mbi

guity

Rem

oval

Win

d Fi

eld

OU

TPU

TO

cean

Surf

ace

Rad

ar B

acks

catte

r O

bser

vatio

nsIn

vers

ion

Am

bigu

ityR

emov

al

Qua

lity

Con

trol

Pre-

Proc

ess

Win

d Fi

eld

INPU

TO

UT

PUT

Qua

lity

Mon

itor

Page

28

Page

28

NO

AA

S

DP

@ 2

5 km

impr

oved

col

dfr

ont be

tter

arou

ndra

in

50 k

mPl

ots !

Page

29

Page

29

The

NW

P S

AF:

Mon

itorin

g re

ports

Mon

itorin

g re

ports

Page

30

Page

30

The

NW

P S

AF:

mon

itorin

g pr

oduc

ts

•Obs

erva

tion

cove

rage

plo

ts•S

tatis

tics

of o

bser

ved-

fore

cast

diff

eren

ces

•Dat

a ty

pes:

•A

TOV

S, S

SM

I, A

IRS

, geo

-radi

ance

s•A

MV

s•Q

uiks

cat,

ER

S-2

•Ozo

ne: S

BU

V, E

nvis

at

Page

31

Page

31

The

NW

P S

AF:

mon

itorin

g pr

oduc

ts

Exa

mpl

e:

AM

Vs

v. 6

h fo

reca

st

Met

Offi

ce

EC

MW

F

Page

32

Page

32

The

NW

P S

AF:

mon

itorin

g pr

oduc

ts

Exa

mpl

e:

AM

Vs

v. 6

h fo

reca

st

Met

Offi

ce

Page

33

Page

33

The

NW

P S

AF:

mon

itorin

g pr

oduc

ts

Exa

mpl

e:

MS

G 6

.3µm

wat

er v

apou

rch

anne

l

EC

MW

F

Page

34

Page

34

The

NW

P S

AF:

mon

itorin

g pr

oduc

ts

Exa

mpl

e of

link

to

anot

her m

onito

ring

site

:

KN

MI Q

uiks

cat

mon

itorin

g

Page

35

Page

35

SS

MIS

Pre

proc

esso

r

Mai

n fu

nctio

ns:

•Rem

appi

ng

•Ave

ragi

ng•R

efle

ctor

em

issi

on c

orre

ctio

n•S

olar

intru

sion

flag

ging

Cod

e &

pre

proc

esse

d da

ta a

vaila

ble

Page

36

Page

36

SS

MIS

Pre

proc

esso

r: A

vera

ging

•N

E∆

T fo

r LA

S c

hann

els

is ~

0.3K

⇒re

quire

ave

ragi

ng to

ach

ieve

NE∆

T eff

= 0.

1K

•A

lso

bene

fit fr

om im

prov

ed s

cale

mat

chin

g?

•Ope

ratio

nal p

repr

oces

soru

ses

σ=

50km

(FW

HM

= 1

18km

)

•NE∆

T eff

~ 0.

03K

•Pro

cess

ing

time

~ 1

min

ute/

orb

it

Page

37

Page

37

SS

MIS

pre

proc

esso

r: fla

ggin

g an

d co

rrec

tion

resi

dual

bia

ses

Page

38

Page

38

SS

MIS

pre

proc

esso

r: fla

ggin

g an

d co

rrec

tion

re

sidu

al b

iase

s

Page

39

Page

39

The

NW

P S

AF:

sup

port

to E

AR

S

Sup

port

to E

AR

S

Page

40

Page

40

The

NW

P S

AF:

sup

port

to E

AR

S

NW

P SA

F su

ppor

t to

the

EUM

ETSA

T A

TOVS

Ret

rans

mis

sion

Ser

vice

(EA

RS)

:

•Dev

elop

men

t and

mai

nten

ance

of A

AP

P

•Rea

l-tim

e da

ta m

onito

ring:

•f

or e

ach

EA

RS

rece

ptio

n si

te•c

heck

s co

nsis

tenc

y w

ith g

loba

l ATO

VS

dat

a•c

heck

s co

nsis

tenc

y w

ith lo

cally

-rec

eive

d A

TOV

S d

ata

(Lan

nion

)

Page

41

Page

41

The

NW

P S

AF:

sup

port

to E

AR

S

Con

clus

ions

Page

42

Page

42

The

NW

P S

AF:

con

clud

ing

rem

arks

•C

olla

bora

tion

betw

een

4 E

urop

ean

NW

P c

entre

s, w

ith

supp

ort f

rom

EU

ME

TSA

T, h

as p

erm

itted

the

deve

lopm

ent,

deliv

ery

and

supp

ort o

f:•s

oftw

are

mod

ules

for s

atel

lite

data

pro

cess

ing

and

assi

mila

tion,

•dat

a m

onito

ring

serv

ices

,to

a la

rge

and

grow

ing

user

com

mun

ity.

•O

ver t

he n

ext f

ew y

ears

, the

NW

P S

AF

plan

s to

co

ntrib

ute

to th

e ex

ploi

tatio

n of

dat

a fro

m n

ew in

stru

men

ts.

•C

olla

bora

tion

with

the

inte

rnat

iona

l com

mun

ity w

ill b

e ne

eded

to e

nsur

e w

e co

ver a

ll th

e ne

w in

stru

men

ts, i

n a

timel

y m

anne

r, w

ithou

t unn

eces

sary

dup

licat

ion.

Page

43

Page

43

The

NW

P S

AF:

furth

er in

form

atio

n

•Fo

r inf

orm

atio

n, v

isit:

http

://w

ww

.met

offic

e.go

v.uk

/rese

arch

/inte

rpro

j/nw

psaf

/inde

x.ht

ml

•To

obt

ain

softw

are,

vis

it:

http

://w

ww

.met

offic

e.go

v.uk

/rese

arch

/inte

rpro

j/nw

psaf

/re

ques

t_fo

rms/

inde

x.ht

ml

Page

44

Page

44

End

Page

45

Page

45

Sup

plem

enta

ry s

lides

Page

46

Page

46

AA

PP

-R

ecen

t upd

ates

Upd

ates

to A

AP

P v

4.0

Upd

ate

4.4,

31/

8/04

:Li

nux

com

patib

ility

(als

o W

indo

ws

via

MS

Ser

vice

s Fo

r Uni

x)Im

prov

ed ro

bust

ness

in d

ecom

mut

atio

nU

tility

to c

ompa

re o

utpu

t file

s fro

m d

iffer

ent p

latfo

rms

(ato

vsC

ompa

re)

Big

/littl

e-en

dian

conv

ersi

ons

Pro

cess

ing

of N

OA

A-1

7to

leve

l 1d

1d fl

ag fo

r few

er c

ollo

catio

ns th

an e

xpec

ted

in re

-map

ping

A

MS

U-A

to H

IRS

Upd

ate

4.5,

03/

02/0

5:U

pdat

ed A

MS

U-B

cal

ibra

tion

para

met

ers

file

(gro

ss li

mits

)

Page

47

Page

47

AA

PP

ver

sion

5

Incl

udes

the

follo

win

g en

hanc

emen

ts:

•N

OA

A-N

cap

abili

ty (i

nclu

ding

MH

S)

•N

ew H

IRS

cal

ibra

tion

met

hod

(bas

ed o

n N

OA

A v

4)•

Upd

ated

nav

igat

ion

–ab

ility

to u

se 2

-line

ele

men

ts•

Cal

ibra

tion

-allo

w fo

r moo

n co

ntam

inat

ion

in A

MS

U-B

/MH

S•

Pre

cipi

tatio

n te

sts

-add

ed N

WC

-SA

F sc

atte

ring

inde

x (B

enna

rtz) t

o A

MS

U-B

leve

l 1d

•U

se o

f ins

trum

ent-s

peci

fic s

can

char

acte

ristic

s, a

nd re

mov

al o

f m

any

hard

-cod

ed p

aram

eter

s

Rel

ease

d to

use

rs o

n 18

Jul

y 20

05, f

ollo

win

g va

lidat

ion

with

NO

AA

-18

data

(~2

mon

ths

afte

r lau

nch)

Page

48

Page

48

The

NW

P S

AF:

1D

-Var

sch

emes A

ssim

ilatin

gob

serv

atio

ns in

to a

NW

P

mod

el

OR

Ret

rievi

ng a

tmos

pher

ic

varia

bles

usi

ng a

fo

reca

st p

rofil

e as

ba

ckgr

ound

(firs

t gue

ss)

Page

49

Page

49

The

NW

P S

AF:

mon

itorin

g E

AR

S v

glo

bal r

adia

nces

Exa

mpl

e: A

TOV

S -

Trom

so