SAT- KLIM: THE SATELLITE CLIMATOLOGY PROGRAMME OF THE GERMAN METEOROLOGICAL SERVICE
The Satellite Climatology Programme SAT-KLIM of the German Meteorological Service (Deutscher Wetterdienst) was established to evaluate the future data of the EUMETSAT programme CM-SAF (Satellite Application Facility on Climate Monitoring). This means that SAT-KLIM will be one important end user of C...
| Main Authors: | , , , , , |
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.197.2702 http://www.eumetsat.de/en/area2/proceedings/eump36/Session_5/5_25_Bissolli.pdf |
| Summary: | The Satellite Climatology Programme SAT-KLIM of the German Meteorological Service (Deutscher Wetterdienst) was established to evaluate the future data of the EUMETSAT programme CM-SAF (Satellite Application Facility on Climate Monitoring). This means that SAT-KLIM will be one important end user of CM-SAF. Since CM-SAF will only provide future operational climate data starting in the year 2004, SAT-KLIM will also use some other climatologies of the past which started already in the eighties. Satellite data will be combined with data from other sources (in situ, models) to produce climate monitoring products. It is intended that SAT-KLIM will start its operational phase at the same time as CM-SAF, in 2004. In this paper the concept of SAT-KLIM will be described. SAT-KLIM consists of two components: one for validation and homogenisation of the satellite data and one for the use in climate monitoring. First results are available for cloud cover, global radiation and water vapour, the area covers mainly the CM-SAF baseline area (Europe and North Atlantic). For cloud cover, climatologies in different spatial and time resolutions are available. The impact of resolution in space and time on the climatological information is shown. The results suggest to use coarse resolution climatologies like the one of the ISCCP (International Satellite Cloud Climatology Project) as well as other climatologies in finer resolution for a spatially more detailed information. For global radiation, a METEOSAT-based climatology is already available at the German Weather Service. These data were already validated with in situ data for a longer period. For water vapour, a intermediate CM-SAF product of tropospheric precipitable water based on TOVS data (from NOAA satellites) is available. Future climate monitoring of SAT-KLIM will include additional data sets, also for other cloud parameters (e.g. cloud type, fog) and particularly all the components of the energy balance at the earth’s surface and the top of the atmosphere |
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