Metop-A ASCAT 25 km Winds

IDENTIFICATION
DescriptionThe ASCAT Wind Product contains measurements of the wind direction and wind speed above the sea surface. The measurements are obtained through the processing of scatterometer data originating from the ASCAT instrument on EUMETSAT's Metop-A satellite, as described in the ASCAT Wind Product User Manual.
Product typeNear real time productMetop-A ASCAT 25 km Winds
StatusOperational
IdentifierOSI-102
AcronymASCAT25
Acronym for EDC (APNM)OAS025
Product navigator referenceEO:EUM:DAT:METOP:OAS025
CHARACTERISTICS
Processing levelL2
Satellite inputMetop-A/ASCAT
Other inputECMWF outputs (wind, SST, land-sea mask)
FrequencyContinuous
Timeliness2 h 45
Spatial coverageGlobal
Spatial sampling25 km
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)
Discovery mean(s)Naiad
RedistributionPODAAC-ASOP2-25X01 : http://podaac.jpl.nasa.gov/dataset/ASCATA-L2-25km
Link FTP serverKNMI FTP server (3 last days)
Applications and users* Operational Met Services (including assimilation in at least 8 NWP models, nowcasting)
* 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
  • This ASCAT Multi-parameter product contains surface wind vectors over ocean and soil moisture index over land. Additionally, the backscatter values involved in the retrieval of the geophysical parameters above are also included, as well as several quality flags to facilitate the use of the data. This product superseded EO:EUM:DAT:METOP:ASCAT25 (Only Metop-A - Acronym for EDC (APNM) : OASW025) on the 28/02/2011 which contains only backscatter and wind information.
  • It is recommended that the reprocessed ASCAT winds data records (EO:EUM:DAT:METOP:OSI-150-B, EO:EUM:DAT:METOP:OSI-150-A) are used instead of this archived NRT product.
  • See also OSI-102-b (Metop-B ASCAT 25 km Winds)