RapidScat 25 km -3 hours latency- Winds

IDENTIFICATION
DescriptionAt 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.
Product typeArchived NRT productRapidScat 25 km -3 hours latency- Winds
StatusDiscontinued
IdentifierOSI-109-c
AcronymRSCAT25
Acronym for EDC (APNM)ORSW025
Product navigator referenceEO:EUM:DST:ISS:RSCAT25
CHARACTERISTICS
Processing levelL2
Satellite inputISS/RapidScat
Other inputECMWF outputs (wind, SST, land-sea mask)
FrequencyContinuous
Timeliness3 h
Spatial coverageBetween 56N and 56S
Spatial sampling25 km
ProjectionSwath
Characteristics & methodsSwath sigma0’s and wind vectors
ACCURACY REQUIREMENTS
Thresold accuracyNA
Target accuracyBetter 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 accuracyNA
Verification/validation methodTriple collocation with NWP and buoys
DATA ACCESS
OSI SAF ProducerRoyal Netherlands Meteorological Institute
Diffusion mean(s) and format(s)EUMETCast (BUFR)
KNMI FTP Server (BUFR)
KNMI FTP Server (NetCDF3)
EDC (NetCDF3)
Discovery mean(s)Naiad
Link FTP serverKNMI FTP server (3 last days)
Applications and users* Operational Met Services
* Operational analyses and ocean models
* Research or Environmental monitoring
VIEW MORE DOCUMENTATION
Product web pageDescriptionProduct User ManualPUM
Live production statusProduction status
Last products at a glanceQuicklookScientific Validation ReportSVR
Continuous monitoringQuality
HISTORY, COMMENTS

See also OSI-109-a (RapidScat 25 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/released23/03/2015
Declared operational/released24/03/2015
On EUMETCast since23/06/2015