RapidScat 50 km -3 hours latency- Winds
IDENTIFICATION | ||
Description | At KNMI the backscatter products coming from the RapidScat scatterometer instrument on board the International Space Station are processed towards a 25 km product for the EUMETSAT OSI SAF. Details are described in the RapidScat Wind Product User Manual. | |
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Product type | Archived NRT product | ![]() |
Status | Discontinued | |
Identifier | OSI-109-d | |
Acronym | RSCAT50 | |
Acronym for EDC (APNM) | NA | |
Product navigator reference | EO:EUM:DST:ISS:RSCAT50 |
CHARACTERISTICS | |
Processing level | L2 |
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Satellite input | ISS/RapidScat |
Other input | ECMWF outputs (wind, SST, land-sea mask) |
Frequency | Continuous |
Timeliness | 3 h |
Spatial coverage | Between 56N and 56S |
Spatial sampling | 50 km |
Projection | Swath |
Characteristics & methods | Swath sigma0’s and wind vectors |
ACCURACY REQUIREMENTS | |
Thresold accuracy | NA |
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Target accuracy | Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis. |
Optimal accuracy | NA |
Verification/validation method | Triple collocation with NWP and buoys |
DATA ACCESS | |||
Diffusion mean(s) and format(s) | EUMETCast (BUFR) WIND FTP Server (BUFR) WIND FTP Server (NetCDF3) EDC (NetCDF3) | ||
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Main FTP server | For access contact scat@knmi.nl | Other FTP server, other mean(s) to access main server | |
EUMETCast | EUMETCast | Discovery mean(s) | Naiad |
EUMETSAT Data Centre | EDC | ||
Applications and users | * Operational Met Services * Operational analyses and ocean models * Research or Environmental monitoring | OSI SAF Producer | Royal Netherlands Meteorological Institute |
VIEW MORE | DOCUMENTATION | ||
Product web page | Description | Product User Manual | PUM |
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Algorithm Theoretical Baseline Document | ATBD | ||
Scientific Validation Report | SVR |
HISTORY, COMMENTS | |
See also OSI-109-b (RapidScat 50 km -2 hours latency- Winds) The RapidScat 2 hours and 3 hours wind products originate from independent input data streams and have different timeliness requirements (120 minutes and 180 minutes). The 2 hours data stream has better timeliness but less coverage: approximately 80% of the theoretical maximum data amount. The 3 hours data stream has a larger latency but better coverage: approximately 98% of the theoretical maximum data amount. | |
Authorised to be operational/released | 23/03/2015 |
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Declared operational/released | 24/03/2015 |
On EUMETCast since | 23/06/2015 |