RapidScat 25 km -2 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 -2 hours latency- Winds
StatusDiscontinued
IdentifierOSI-109-a
AcronymRSCAT25
Acronym for EDC (APNM)NA
Product navigator referenceEO:EUM:DST:ISS:RSCAT25_2H
CHARACTERISTICS
Processing levelL2
Satellite inputISS/RapidScat
Other inputECMWF outputs (wind, SST, land-sea mask)
FrequencyContinuous
Timeliness2 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
Diffusion mean(s) and format(s)EUMETCast (BUFR)
WIND FTP Server (BUFR)
WIND FTP Server (NetCDF3)
Main FTP serverFor access contact scat@knmi.nlOther FTP server,
other mean(s) to access main server


EUMETCastEUMETCastDiscovery mean(s)Naiad
EUMETSAT Data CentreEDC
Applications and users* Operational Met Services * Operational analyses and ocean models * Research or Environmental monitoringOSI SAF ProducerRoyal Netherlands Meteorological Institute
VIEW MORE DOCUMENTATION
Product web pageDescriptionProduct User ManualPUM
Live production statusProduction statusAlgorithm Theoretical Baseline DocumentATBD
Last products at a glanceQuicklookScientific Validation ReportSVR
Continuous monitoringQuality
HISTORY, COMMENTS

See also OSI-109-c (RapidScat 25 km -3 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