ScatSat-1 25 km wind vectors

Discontinued Archived NRT product

Near-real time level 2 ocean wind vectors on a 25km/50km swath grid, based on the backscatter measurements of the Indian Space Research Organisation ScatSat-1/OSCAT scatterometer.

Acronym : SCATSAT25
Product navigator reference :


OSI SAF producer : Royal Netherlands Meteorological Institute
Identifier : OSI-112-a
Digital object identifier (DOI) 10.15770/EUM_SAF_OSI_NRT_2009
Acronym for EDC (APNM) : OSSW025
Processing level : L2
Satellite input : ScatSat-1/OSCAT provided by ISRO
Other input : NWP outputs (wind, SST, land-sea mask)
Temporal sampling : 29 half-orbits per day
Central time : NA
Timeliness : ? The timeliness is the time elapsing from the sensing time of the last contributing file to the product dissemination to users. It is similar to the latency. 3 h
Spatial coverage : Global
Spatial sampling : 25 km
Projection : Swath
File Formats : EDC (BUFR), EDC (NetCDF3)
Characteristics & methods : Swath sigma0’s and wind vectors
Data Access



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
* Operational analyses and ocean models
* Research or Environmental monitoring.
Authorised to be operational / released :
Declared operational / released since :
On EUMETCast since :
On EDC since :
On FTP server since :
First date :
Last date :
Full series temporal coverage : 2017-2021
  • See also OSI-112-b (ScatSat-1/OSCAT 50 km Winds).

    The ScatSat-1 instrument failure which occurred on 28th February has been announced as irrecoverable at the beginning of July 2021. See #2287

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