cm-saf toa radiation status report
DESCRIPTION
CM-SAF TOA radiation status report. S. Dewitte Royal Meteorological Institute of Belgium. Overview. Changes to processing system Status input products: GERB/SEVIRI Status input products: CERES. Changes visible to users. Change from lat-lon to sinusoidal grid. - PowerPoint PPT PresentationTRANSCRIPT
CM-SAF Board Meeting , Zurich, 13-15/9/2004
CM-SAF TOA radiation status report
S. Dewitte
Royal Meteorological Institute of Belgium
CM-SAF Board Meeting , Zurich, 13-15/9/2004
Overview
Changes to processing system Status input products: GERB/SEVIRI Status input products: CERES
CM-SAF Board Meeting , Zurich, 13-15/9/2004
Changes visible to users
Change from lat-lon to sinusoidal grid.– Changes spatial averaging for GERB, now high
resolution SHI is used as input instead of low resolution BARG.
New hdf output format.
CM-SAF Board Meeting , Zurich, 13-15/9/2004
Demonstration merging
Daily mean TRS images for 2/3/2004.
CM-SAF Board Meeting , Zurich, 13-15/9/2004
CERES
GERB
CM-SAF Board Meeting , Zurich, 13-15/9/2004
CERESwith mask
GERBwith mask
CM-SAF Board Meeting , Zurich, 13-15/9/2004
Merged
User product
CM-SAF Board Meeting , Zurich, 13-15/9/2004
Internal changes
New directory structure– Better separation source code/data– Organised per month and per software version– Input, output, intermediate data and source
code are archived for traceability and possibility for reprocessing
More extensive logging– ‘Log summary tool’ may be needed.
CM-SAF Board Meeting , Zurich, 13-15/9/2004
Status input products: GERB/SEVIRI
Currently used as input in order of priority: – GERB (not released)
– GERB-like from SEVIRI data
Product file contains the list of input files that were actually used.
No more correction of the GERB/SEVIRI data in the CM-SAF software, will be done in near-real time GERB Processing.
CM-SAF Board Meeting , Zurich, 13-15/9/2004
GERB status
Planned release: December 2004. Planned reprocessing: first half 2005. Known data quality problems:
– Spectral response (affects TRS)– Correction of TET for cold clouds.– Not yet investigated: TRS near sun glint region.
Instrument stopped measuring end of July 2004, should restart this week.
CM-SAF Board Meeting , Zurich, 13-15/9/2004
Status input products: CERES
Currently used: ES9, Terra, FM1, Edition 1– Available up to June 2004
– Waiting for July 2004 for next month ‘dress rehearsal’
Better: ES9, Terra/FM1 + Aqua/FM3, Edition 2– Available up to Dec 2003
More advanced: SRBAVG– Better angular models, better spatial resolution
– Currently only available for TRMM up to 2000
CM-SAF Board Meeting , Zurich, 13-15/9/2004
Conclusions
Ready for dress rehearsal next month. GERB data release planned for December 2004. Possibility for reprocessing.