Centre de Météorologie Spatiale

DP/CMS/R&D – GuyRochard 28/11/2002

Direction de la Production

Centre de Météorologie Spatiale

Guy.Rochard@meteo.fr

Direction de la Production

This ppt is on the WEB :

http://guy.rochard.free.fr/meteo/fichiers/locglob.ppt

Local & global preprocessings

Advanced Technology Microwave Sounder (ATMS)

Northrop Grumman

Ozone Mapping & Profiler Suite(OMPS)

Ball Aerospace

Cross-track IR Sounder(CrIS)

1. ITT IndustriesVisible/IR Imaging Radiometer

Suite (VIIRS)Raytheon SBRS

Instruments inDevelopment/Production Phase

Conical-scanning Microwave

Imager/Sounder (CMIS)Boeing

CrIS ITT 5

VIIRS Raytheon 7

GPSOS SAAB 2

ATMS Northrup Grumman

4

OMPS BALL 3

CMIS Boeing 6

ADCS CNES/TRW 4

SARSAT CNES/DND/TRW 6

ALT TRW 2

APS TBD 2

SESS BALL 2

ERBS TRW 2

TSIS LASP 2

CMIS

VIIRS

CrIS

ATMS

ERBSOMPS

NPOESS 1330 Configuration

Last column is the number of instruments, one more ATMS is from NASA

1330 1730 2130

VIIRSVIIRS

CMISCMIS

CrISCrIS

ATMSATMS

SESSSESS

GPSOSGPSOS

SSSS

SARSATSARSAT

ADCSADCS

ERBSERBS

OMPSOMPS

VIIRSVIIRS

CMISCMIS

VIIRSVIIRS

CMISCMIS

SSSS

SARSATSARSAT

ADCSADCS

ALTALT

TSISTSIS

SSSS

CrISCrIS

ATMSATMS

APSAPS

SARSATSARSAT

VIIRSVIIRS

1030

ATMSATMS

CrISCrIS

CERESCERES

OMPSOMPS

= Potential flight of opportunity

NPP NPOESS

CY 99 00 11 12 13 14 15 16 17 1803 08 09 1001 02 0704 05 06

Loca

l Equato

rial C

ross

ing T

ime

S/CDeliveries

S/C delivery interval driven by 15 month IAT scheduleAs of: 1 June 02

Metsat Satellite Transition Schedule

FY 99 00 11 12 13 14 15 16 17 1803 08 09 1001 02 0704 05 06

MissionSatisfaction

1330POES

EOS-Aqua

NPOESSC2N’

Earliest Need to back-up launch

N16

Earliest Availability

0530 DMSP

WindSat/ Coriolis

0730 - 1030

NPOESSC3F20

NPOESSDMSP

POES

NPP

EOS-Terra

METOP

NPOESSC1F16

M

F17 F19

F15 F18 C4

C5

C6

Most probable launch dateLaunch date based on backup need

----------------10 Year Mission Life-------------------

Thanks to Karen for presenting this ppt.

With POES, we met some problems between global and local level 1B :

http://guy.rochard.free.fr/meteo/fichiers/STG_SWG_12_2002_Brunel.pdf

presents global/local differences for POES calibration and navigation

http://guy.rochard.free.fr/meteo/fichiers/10282.doc

indicates the needed coherence between local & global calibrations.

With NPP & NPOESS, we could met similar troubles.

The following slide indicates other problems to solve for both global

and local preprocessings to optimize the coupling of instruments.

http://guy.rochard.free.fr/meteo/fichiers/crop0002.jpg

shows HIRS channel registration.

http://guy.rochard.free.fr/meteo/fichiers/crop0006.jpg

AVHRR channel registration.

http://guy.rochard.free.fr/meteo/fichiers/secondlobes.doc

secondary lobe antenna of AMSU.

http://guy.rochard.free.fr/meteo/fichiers/crop0003.jpg

misalignment between AVHRR and HIRS.

http://guy.rochard.free.fr/meteo/fichiers/Misalignment_and_coregistration.doc

summarizes a work done to improve partly these problems on POES.

HIRS

AVHRR

Secondary lobes

AMSU

MISALIGMENT

HIRS/AVHRR

* http://www.meteorologie.eu.org/ici/

shows the benefit to collocate AVHRR and HIRS.

* Why not a collocation of VIRSS, CrIS, ATMS, CMIS ?…

http://guy.rochard.free.fr/meteo/fichiers/localglobalHIRS.doc

shows that a too large difference between NESDIS (global)

and Lannion (local) rejects one of the data source in NWP.

* About navigation of the data, collocation + landmarks are

the best using automatic software.

* About calibration, a compromise must be found between the

global preprocessing (using one full orbit) and direct readout.

REPARTITION GEOGRAPHIQUE DES OBSERVATIONS ATOVS HIRS

SafetyNet is a system of 15 globally distributed SMD receptors linked to the centrals via commercial fiber, it enables low data latency and high data availability

Safety Net

                                                                                                  

Direct readout :

The hardware exists…so, now, the software has to come.!…

                    

NPP & NPOESS also…

Thanks !…

This ppt is available at :

http://guy.rochard.free.fr/meteo/fichiers/locglob.ppt

* Outside USA, it’s not sure to get SAFETY NET data in 20 mn.      * It’s necessary for regional use to get the data through direct readout access up to 1B navigated radiances (at least), then :    * A local preprocessing package is necessary as AAPP for POES.      * Coherence between “local/global” calibration & navigation is needed as collocation between visible, infra-red and microwave… and an operational monitoring of this coherence should exist  * Up to level 1B, we must rely on the manufacturers of the radiometers and spacecrafts.. Above 1B, all should should get benefit from a cooperation with users en scientists.

Conclusions :