Metop-A ASCAT 25 km Winds

Operational Near real time product

The 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.

Identification
Acronym : ASCAT25
Product navigator reference :

EO:EUM:DAT:METOP:OAS025

OSI SAF producer : Royal Netherlands Meteorological Institute
Identifier : OSI-102
Acronym for EDC (APNM) : OAS025
Characteristics
Processing level : L2
Satellite input : Metop-A/ASCAT
Other input : ECMWF outputs (wind, SST, land-sea mask)
Frequency : Continuous
Timeliness : 2 h 45
Spatial coverage : Global
Spatial sampling : 25 km
File Formats : WIND FTP Server (BUFR), WIND FTP Server (NetCDF3), WMO Global Telecommunication System (BUFR), EDC (BUFR), EDC (NetCDF3), EUMETCast (BUFR)
Characteristics & methods : Swath sigma0’s and wind vectors
Data Access
Redistribution :

PODAAC-ASOP2-25X01 : http://podaac.jpl.nasa.gov/dataset/ASCATA-L2-25km

Discovery mean(s) : Naiad
Accuracy Requirements
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.
Verification/validation method : Triple collocation with NWP and buoys
Applications and users
Usage : * Operational Met Services (including assimilation in at least 8 NWP models, nowcasting)
* Operational analyses and ocean models
* Research or Environmental monitoring.
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 This product superseded EO:EUM:DAT:METOP:ASCAT25 (Only Metop-A - Acronym for EDC (APNM) : OASW025) on the 28/02/2011 which contains only backscatter and wind information.

  • 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 This product superseded EO:EUM:DAT:METOP:ASCAT25 (Only Metop-A - Acronym for EDC (APNM) : OASW025) on the 28/02/2011 which contains only backscatter and wind information.

  • 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.

  • 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.

New ticket helpdesk