© crown copyright met office rars implementation group – software and monitoring nigel atkinson...

© Crown copyright Met Office

RARS Implementation Group – Software and monitoring Nigel Atkinson (Met Office, UK)

RARS IG-6

© Crown copyright Met Office RARS-IG-6 25-26 Oct 2012

AAPPAAPP version Date Applicability to RARS

7.1 02 March 2012 Initial release of AAPP v7. Supersedes v6. First with NPP capability.

7.2 27 July 2012 Fix NOAA-18 AMSU-A processing

Add Metop-B

7.3 10 Oct 2012 Fix NOAA-15 AMSU-A processing

Fix EARS-IASI PCs

Improve ATMS/CrIS processing

Add FY-3A/B MWHS/MWTS BUFR encoding

OPS-LRS_v6-0+p12

27 July 2012 Recommended version for IASI processing

7.4 beta (not officially

released)

17 Oct 2012 A patch file is available to fix other issues:

• Metop-B MHS instrument I/D was wrong in AAPP code (see forum announcement)

• CrIS channel selection bug, and improve BUFR encoding

• Fix problem in BUFR encoding FY-3B MWTS/MWHS


Metop-A bias issue

• Metop-A ATOVS being disseminated by EARS stations, and also by Kiyose, Jincheon and Hong Kong.

• Not available to South America; limited coverage of Australia

• AMSU bias issue recently identified by Météo-France (next slide)

2 sets of antenna corrections are defined in AAPP: the original set and a post-launch update

EARS and Kiyose had been using v2, Jincheon and Hong Kong were using v1

Jincheon switched to v2 on 12th October, Hong Kong on 22nd Octoberexport FDFSAT=METO-02export FDFVN=2

This was not picked up by the NWP SAF monitoring because we can accept either version.

• Should not arise for Metop-B (only 1 set of corrections)

But global Metop-B BUFR from EUMETSAT has version number set to 2 – this number is not satellite specific at EUMETSAT?


O-B map from Météo-France


Metop-BChanges to accommodate Metop-B:

1. Check: has your station correctly extracted OBT-UTC correlation parameters from the MMAM?

2. Install AAPP v7.3

3. In ATOVS_ENV7, add M01 to list of satellites in PAR_NAVIGATION_DEFAULT_LISTESAT and PAR_NAVIGATION_DEFAULT_LISTEBUL

4. install MHS patch (see “7.4 beta” in earlier table)

AMSU, MHS, HIRS, AVHRRall working

L0 data for 16/10/2012 from Judd Taylor, Orbital Systems


Extension of RARS to IASI• The EUMETSAT EARS-IASI service is already operational,

Athens, Maspalomas, Lannion, Svalbard

• Uses OPS-LRS + AAPP

• 366 channels + 300 Principal Components, all spots

• Output BUFR file typically 12Mb per pass

Sequence 3-40-008

Athens pass


Extension of RARS to Suomi NPP

• For level 0 to level 1 processing, use Univ. Wisconsin’s Community Satellite Processing Package (CSPP) http://cimss.ssec.wisc.edu/cspp/

• Current version v1.2 (4th Oct 2012)

• Needs a reasonably powerful Linux system (64 bits; 16 GB memory)

• AAPP ingests the Sensor Data Record (SDR) files for ATMS/CrIS. These are HDF5. Converts to BUFR

Sequence 3-10-061 for ATMS; 3-10-060 for CrIS

Master table 16 (WMO web site)

• 399 channels baseline for CrIS

• Most of the functionality is in AAPP v7.3. A few fields are not yet filled for CrIS (e.g. surface height and type; cloud cover). This will be addressed.


Extension of RARS to FY-3

• Sounder instruments in the L-band direct broadcast

• Level 0 processing package for FY-3A and FY-3B available from CMA:

http://www.nsmc.cma.gov.cn/NewSite/NSMC_EN

Training → FAQs

• Generates SDRs (same HDF5 format as global data already distributed by EUMETSAT)

• BUFR encoding for MWTS and MWHS instruments now implemented in AAPP – based on sequence devised by ECMWF (not yet addressed IRAS)

• Submit proposal to WMO Codes group?

• There will be strong interest in FY-3C with an AMSU-like microwave sounder (launch Sept 2013).


NWP SAF RARS monitoring

• No changes to RARS-ATOVS monitoring at Met Office

• Daily stats files emailed to those centres who have requested them

• Plots available at http://research.metoffice.gov.uk/research/interproj/nwpsaf/ears_report/index.html

• Met Office (EARS, A-P RARS, S-A RARS) and Météo-France (EARS)

• Monitoring of GTS data availability is still planned. (Currently monitor data received via ftp)


Met Office RARS monitoring on web


Météo-France EARS monitoring


EARS-IASI monitoring (Met Office)

• Compare raw radiances with reconstructed

• Until 23 October, getting some bad PC scores (see below). Should be fixed now that AAPP v7.3 is implemented at EARS nodes


Daily EARS-IASI log files

• Plan to make these available to EUMETSAT

• Also plan comparisons with global data

stn orbit scans %band1 %band2 %band3sva 31132 209 99.75 99.75 99.67sva 31133 201 99.32 98.99 98.56sva 31134 208 99.92 99.86 99.78sva 31135 211 99.93 99.93 99.84sva 31136 218 99.90 99.89 99.74ath 31136 87 99.91 89.84 99.91sva 31137 218 99.69 99.69 99.40lan 31137 72 99.70 99.27 99.65ath 31137 79 99.64 97.76 99.60mas 31138 74 99.61 89.21 99.57sva 31138 220 99.95 99.56 99.86lan 31138 67 99.95 99.95 99.90mas 31139 88 99.83 99.80 99.80sva 31139 216 99.60 98.95 98.81mas 31140 39 94.81 94.81 94.81


EARS-IASI monitoringMétéo-France

© crown copyright met office rars implementation group – software and monitoring nigel atkinson...

Documents

uk rars ig

p rars

rarsatovs monitoring

met office daily stats

web slide

b mwtsmwhs slide

ftp slide

mtofrance slide