Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

  • Nadir view for every model grid point
    The new simulated satellite images assume a nadir view for every model grid point so the effect of looking slantwise through the atmosphere is neglected. Consequently the atmosphere appears less opaque than with the old simulated images and so lower lying clouds and other features are better presented.

  • Produced in post-processing within the IFS, with no mapping on satellite grid
    This is a technical advantage of the new simulated satellite images being now produced in the post-processing within the IFS and being part of the research tests for operational release. This is an enhancement with respect to the previous product generated only in the early delivery cycles of the operational suite as they can be now used routinely in ECMWF Research Department experiments to validate model developments which affect the temperature and moisture fields.

  • Availability of the simulated satellite images in MARS
    The new images product are archived in MARS in GRIB edition 2 and are available at every post-processing step, out to 240 hours: 3 hourly from T+0 to T+48,  6 hourly from T+54 to T+120 and  then 12 hourly from T+132 to T+240. This is an enhancement with respect to the previous  satellite image product available in GRIB edition 1, out to T+120.

  • Availability of the simulated satellite images in ECMWF Catalogue and dissemination
    The timeliness of delivery is optimal for dissemination. The new simulated images will be added to the list of products that can be requested in dissemination.

Example images

Image Modified Image Added

48-hour global simulated Meteosat-10 SEVIRI imagery at 10.8 μm (channel 9) from the ECMWF model cycle 41r2 at TCO1279 / O1280 horizontal resolution with 137 vertical levels run on 1 March 2016 at 00 UTC.

48-hour global simulated Meteosat-10 SEVIRI imagery at  6.30 μm (channel 5)from the ECMWF model cycle 41r2 at TCO1279 / O1280 horizontal resolution with 137 vertical levels run on 1 March 2016 at 00 UTC.
Image AddedImage Added
Animation of 10 day global simulated Meteosat-10 SEVIRI imagery at 10.8 μm (channel 9) from the ECMWF model cycle 41r2 at TCO1279 / O1280 horizontal resolution with 137 vertical levels run on 1 March 2016 at 00 UTC.Animation of 10 day global simulated Meteosat-10 SEVIRI imagery at  6.30 μm (channel 5)from the ECMWF model cycle 41r2 at TCO1279 / O1280 horizontal resolution with 137 vertical levels run on 1 March 2016 at 00 UTC.

 

 

Technical information

 

SatelliteInstrumentSatellite IDInstrument TypechannelCentral wavelength (μm)Description
Meteosat-10SEVIRI5720756.30Water Vapour at ~300 hPa
67.36Water Vapour at ~500 hPa
910.79Window

...