# Presentation: 183712

## Local & global preprocessings

**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***

## Instruments inDevelopment/Production Phase

***Advanced Technology Microwave Sounder (ATMS)***
***Northrop Grumman***

***Ozone Mapping & Profiler Suite***
***(OMPS) ***
***Ball Aerospace***

***Cross-track IR Sounder***
***(CrIS)***
***ITT Industries***

***Visible/IR Imaging Radiometer ***
***Suite (VIIRS)***
***Raytheon SBRS***

***Instruments in******Development/Production Phase***

***Conical-scanning Microwave ***
***Imager/Sounder ***
***(CMIS)***
***Boeing***

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

| 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 |

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

## NPP

**1330**

**1730**

**2130**

**VIIRS**

**CMIS**

**CrIS**

**ATMS**

**SESS**

**GPSOS**

**SS**

**SARSAT**

**ADCS**

**ERBS**

**OMPS**

**VIIRS**

**CMIS**

**VIIRS**

**CMIS**

**SS**

**SARSAT**

**ADCS**

**ALT**

**TSIS**

**SS**

**CrIS**

**ATMS**

**APS**

**SARSAT**

**VIIRS**

**1030**

**ATMS**

**CrIS**

**CERES**

**OMPS**

**= Potential flight of opportunity**

- NPOESS

## Slide 5

## Thanks to Karen for presenting this  ppt.

***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

**HIRS**

## AVHRR

**AVHRR**

## Secondary lobes

- AMSU

## MISALIGMENT

**MISALIGMENT**
**HIRS/AVHRR**

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

******* 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

## Safety Net

**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.

-        * 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 :**_