SCATSAT-1 Scatterometer Inter-Calibrated ESDR Level 3 Ocean Surface Equivalent Neutral Wind Vectors and Wind Stress Version 1.0
(SCATSAT1_ESDR_L3_WIND_STRESS_V1.0)| Version | 1.0 |
| Processing Level | 3 |
| Start/Stop Date | 2018-Apr-01 to 2021-Mar-01 |
| Short Name | SCATSAT1_ESDR_L3_WIND_STRESS_V1.0 |
| Description | This dataset contains gridded ocean surface wind vectors (equivalent neutral and true 10m) and wind stress vectors derived from satellite-based scatterometer observations aboard SCATSAT-1, representing the first science quality release of these data funded under the MEaSUREs program. This product from SCATSAT-1 has been intercalibrated with similar scatterometer measurements from instruments on the MetOp-A, MetOp-B, and QuikScat satellites, all of which can be found on the MEaSUREs OSVW Project Page. The wind vector and stress retrievals are provided on a global grid (one per file) at 12.5 km pixel resolution, but data exist only over areas of the globe that fell within one of the satellite swaths/orbits for that day (see thumbnail).
The dataset represents the first science quality release funded under the MEaSUREs (Making Earth System Data Records for Use in Research Environments) program. Note that this is the first version of the Level 3 data (V1.0) but they were derived from V1.1 of the Level 2 product. The primary purpose of this release is for science evaluation by the NASA International Ocean Vector Winds Science Team (IOVWST). |
| DOI | 10.5067/ESDSS-L3W10 |
| Measurement | OCEANS > OCEAN WINDS > SURFACE WINDS OCEANS > OCEAN WINDS > WIND STRESS OCEANS > OCEAN WINDS > WIND VELOCITY/SPEED |
| Swath Width | 1800 km |
| Platform/Sensor | SCATSAT-1 / Platform Name: Scatterometer Satellite-1 (SCATSAT-1) Orbit Period: 99.2 minutes Inclination Angle: 98.1 degrees OSCAT-2 SENSOR Name: OceanSat-2 Scatterometer (OSCAT-2) Swath Width: 1840.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. |
| Project | MEaSUREs ESDR of the Ocean Surface Vector Winds, Stress, and Their Dynamically-Significant Derivatives (MEaSUREs/OSWV) |
| Data Provider | Publisher: PO.DAAC Creator: MEaSUREs/OSWV Release Place: PO.DAAC Release Date: 2025-May-01 |
| Format | netCDF-4 |
| Keyword(s) | wind data, wind, ocean wind, wind speed, vector, vectors, stress data, wind stress, stress, ocean surface wind stress, ocean wind vector, ocean wind vectors, seawinds, scatsat-1, scatsat, oscat-2, scatterometer, measures, esdr |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution Temporal Resolution: Hourly - < Daily Coverage Region: GLOBAL North Bounding Coordinate: 90 degrees South Bounding Coordinate: -90 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 2018-Apr-01 to 2021-Mar-01 Granule Time Span: 2018-Apr-01 to 2021-Mar-01Swath Width: 1800 km Projection Projection Type: Swath Projection Detail: Along-track Grid Ellipsoid: WGS 84 |
| DIRECT ACCESS | |
| Browse Granule Listing | |
| OPENDAP DATA | |
| Search Granules | |
| This dataset can be downloaded using the podaac-data-subscriber (the recommended tool for bulk downloading PO.DAAC data). It is a Python package for downloading one or many files using the command line interface. The URL redirects to the data-subscriber home page with instructions for utilizing the tool | |
| DIRECT S3-ACCESS | |
| Available for access in-region with AWS Cloud | |
Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/SCATSAT1_ESDR_L3_WIND_STRESS_V1.0/ | |
| podaac-ops-cumulus-public/SCATSAT1_ESDR_L3_WIND_STRESS_V1.0/ | |
AWS S3 Credentials | |
| Get AWS S3 Credentials | Documentation | |
| TOOLS AND SERVICES | |
| This dataset can be accessed with the Harmony subsetter service to subset and regrid data on-the-fly. Several subsetting options are available such as spatial, variable, temporal, and vertical level. The URL redirects to a general page with information about utilizing the service. An example query: https://harmony.earthdata.nasa.gov/C3378626164-POCLOUD/ogc-api-coverages/1.0.0/collections/all/coverage/rangeset?subset=lat(minLat:maxLat)&subset=lon(minLon:maxLon)&subset=time(startTime:stopTime)&format=application%2Fx-netcdf4 | |
| Name | Long Name | Unit |
|---|---|---|
| coverage_date | date for which this gridded dataset was computed | days since 2018-04-04 00:00:00 |
| distance_from_coast | Wind retrieval distance from the coastline closest to the retrieval. | km |
| en_wind_speed | retrieved equivalent neutral wind speed | m s-1 |
| en_wind_speed_error | equivalent neutral wind speed uncertainty | m s-1 |
| en_wind_u | retrieved equivalent neutral eastward wind speed component vector | m s-1 |
| en_wind_u_error | equivalent neutral eastward wind speed component vector uncertainty | m s-1 |
| en_wind_v | retrieved equivalent neutral northward wind speed component vector | m s-1 |
| en_wind_v_error | equivalent neutral northward wind speed component vector uncertainty | m s-1 |
| lat | latitude | degrees_north |
| lon | longitude | degrees_east |
| number_of_samples | Number of samples used to form this gridded estimate. | |
| orbit | orbit | |
| overlap | overlap level | |
| quality_indicator | quality indicator for wind retrieval | -1 |
| real_wind_speed | retrieved non-neutral 10m wind speed | m s-1 |
| real_wind_u | retrieved non-neutral eastward wind speed component vector | m s-1 |
| real_wind_v | retrieved non-neutral northward wind speed component vector | m s-1 |
| time | date and time | seconds since 1999-1-1 0:0:0 |
| wind_stress_magnitude | estimated ocean surface wind stress magnitude | N m-2 |
| wind_stress_magnitude_error | ocean surface wind stress magnitude uncertainty | N m-2 |
| wind_stress_u | estimated ocean surface wind stress eastward component vector | N m-2 |
| wind_stress_u_error | ocean surface wind stress eastward component vector uncertainty | N m-2 |
| wind_stress_v | estimated ocean surface wind stress northward component vector | N m-2 |
| wind_stress_v_error | ocean surface wind stress northward component vector uncertainty | N m-2 |
| DATA CITATION GUIDELINES | |
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| USER'S GUIDE | |
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| GENERAL DOCUMENTATION | |
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Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
| Citation | MEaSUREs/OSWV. 2025. SCATSAT-1 Scatterometer Inter-Calibrated ESDR Level 3 Ocean Surface Equivalent Neutral Wind Vectors and Wind Stress Version 1.0. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/ESDSS-L3W10
For more information see Data Citations and Acknowledgments.
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