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Change Log until 30 April 2008

VersionOperational centresourcesvalid fromimplemented changesavailability
300RMIB (TOA products)Data source: METEOSAT-9/GERB and CERES data01.05.2007
to
30.04.2008
  • Products based on GERB1 data
on demand
300DWD (Cloud products and Surface radiation products)Data source: NOAA/AVHRR Based on SAF-NWC software PPS 1.101.09.2007
to
30.04.2008
  • NWP remapping corrected (see service message 19)
  • Update of SAL processing (inclusion of OSI-SAF sea ice mask for retrieval of snow and sea ice albedo over ocean)
  • Change of COT/CWP software version for AVHRR (V2.2.2 1)
on demand
300DWD (Cloud products, Surface radiation products and Humidity products)Data source: MSG/SEVIRI and NOAA/ATOVS Based on SAF-NWC software MSG 1.201.05.2007
to
30.04.2008
  • Area extension of SEVIRI processing to full disk
  • Change of COT/CWP software version V2.2.2
  • New ATOVS processing based on IAPP
  • AVHRR/SEVIRI merging for surface radiation products
Humidity products: on demand
Cloud&surf. rad.: on demand
210DWD (Cloud products, Surface radiation products and Humidity products)Data source: MSG/SEVIRI and NOAA/ATOVS Based on SAF-NWC software MSG 1.201.09.2005
to
09.05.2007
  • Change of SAF-NWC software from MSG 1.1 to MSG 1.2 see also service message 8
on demand
200DWD (Cloud products, Surface radiation products and Humidity products)Data source: MSG/SEVIRI and NOAA/ATOVS Based on SAF-NWC software MSG 1.101.09.2005
to
31.01.2006
  • n/a
on demand
160DWD (cloud products, surface radiation products and humidity products)Data source: NOAA/AVHRR Based on SAF-NWC software PPS 1.101.01.2007
till
30.08.2007
  • Change from SAF-NWC Software PPS 1.0 to SAF-NWC Software PPS 1.1
  • Change to AAPP Version 5.3
  • Update of SAL processing (SAL now available both over land and ocean. Data over ocean is based on model. SAL processing uses Corine/USGS land use map as background data.

  • Change of COT/CWP software version V2.2.2 (Enhanced look-up tables w.r.t. optical properties of especially ice clouds; Inclusion of surface albedo maps based on MODIS white-sky albedo maps;

    Optional recalibration of AVHRR radiances of channels 1 -3 relative to corresponding MODIS radiances (switched on))

on demand
150DWD (Cloud products and Surface radiation products)Data source: NOAA/AVHRR Based on SAF-NWC software PPS 1.001.08.2005
till
31.12.2006
  • Change from 32 x 32 pixel per tile to 45 x 45 pixel per tile in the clouds processing to fix the error of artefacts in the end products (straight lines across sub-areas)
  • elimination of box gradients near the coastlines in SOL and SDL images
  • Hardware change from IBM Power3 to IBM Power5
on demand
140DWD (Cloud products and Surface radiation products)Data source: NOAA/AVHRR Based on SAF-NWC software PPS 1.001.04.2005
to
31.07.2005
  • Change of averaging routine: Limits for cloud products have been changed: Daily mean: at least 6 slots per tile (except for COT/CWP products) Monthly mean: at least 20 daily mean
  • Improvement in allocation of NWP data files (update of aix_job_stx_field and aix_job_stx_field_mm)
  • COT/CWP version 1.2 was implemented
  • Avhcal.txt version 12 was implemented (update of calibration coefficients for NOAA-17)
  • Update of pps_runutils.py according to SMR-0155-INM (NWC-SAF)
on demand
130DWD (Cloud products and Surface radiation products)Data source: NOAA/AVHRR Based on SAF-NWC software PPS 1.001.11.2004
to
31.03.2005
  • n/a
on demand
120RMIB (TOA products)Data source: MSG-SEVIRI/GERB and CERES01.02.2004
till
30.04.2007
  • introduction of a correction to the thermal fluxes from the GERB and GERB-like products
on demand
110RMIB (TOA products)Data source: METEOSAT-8/GERB and CERES data01.04.2006
to
31.10.2006
  • Gerb data from released version
  • Replacement of missing Gerb pixels by Gerb-like ones instead of image per image
  • Change of geolocation (correction of bugs, now exactly 45km x 45 km)
  • New fields giving percentage of Gerb / Gerb-like / Ceres data needed to compute each pixel value in the final products
on demand
100RMIB (TOA products)Data source: METEOSAT-8/GERB and CERES data01.12.2004
to
31.03.2006
  • n/a
on demand

NaS / Apr2022

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