SCATSAT-1 Scatterometer Inter-Calibrated ESDR Level 2 Ocean Surface Equivalent Neutral Wind Vectors and Wind Stress Vectors Version 1.1
(SCATSAT1_ESDR_L2_WIND_STRESS_V1.1)| Version | 1.1 |
| Processing Level | 2 |
| Start/Stop Date | 2018-Apr-01 to 2021-Mar-01 |
| Short Name | SCATSAT1_ESDR_L2_WIND_STRESS_V1.1 |
| Description | This dataset contains 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 (post-provisional after v1.0) funded under the MEaAUREs 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), and if used together create an unbroken record of winds from 1999 to 2022. The wind vector and stress retrievals are provided on a non-uniform grid within the swath (Level 2 (L2) products) at 12.5 km pixel resolution. Each L2 file corresponds to a specific orbital revolution number, which begins at the southernmost point of the ascending orbit. The thumbnail shows data for two orbits - using all orbits for a single day will provide global coverage. The dataset represents the first science quality release funded under the MEaSUREs (Making Earth System Data Records for Use in Research Environments) program. Version 1.1 provides a set of updates and improvements from version 1.0, including: 1) increased data coverage, 2) improved quality control, and 3) new global metadata attributes featuring revolution number, equator crossing longitude, and equator crossing time (UTC). The primary purpose of this release is for science evaluation by the NASA International Ocean Vector Winds Science Team (IOVWST). |
| DOI | 10.5067/ESDSS-L2W11 |
| 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: 2024-Sep-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, l2b, level 2, level 2b, version 1.1, v1, measures, esdr |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution Spatial Resolution: 12.5 Kilometers x 12.5 Kilometers 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-Feb-28Swath Width: 1800 km Projection Projection Type: Swath Projection Detail: Along-track Grid Ellipsoid: WGS 84 |
| DIRECT ACCESS | |
| Browse Granule Listing | |
| OPENDAP DATA | |
| S3 virtual dataset reference file (in-cloud use) | |
| 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_L2_WIND_STRESS_V1.1/ | |
| podaac-ops-cumulus-public/SCATSAT1_ESDR_L2_WIND_STRESS_V1.1/ | |
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 |
|---|---|---|
| cross_track_wind_speed_bias | relative wind speed bias with respect to sweet spot | m s-1 |
| distance_from_coast | Wind retrieval distance from the coastline closest to the retrieval. | km |
| en_wind_direction | equivalent neutral wind direction clockwise from North following oceanographic convention | degrees |
| en_wind_direction_error | equivalent neutral wind direction uncertainty | degrees |
| en_wind_direction_uncorrected | uncorrected equivalent neutral wind direction clockwise from North following oceanographic convention | degrees |
| 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_speed_uncorrected | retrieved equivalent neutral wind speed without rain corrections | 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 |
| flags | quality flags | bit |
| gmf_sst | Sea Surface Temperature Used in Geophysical Model Function | Degrees Celsius |
| lat | latitude | degrees_north |
| lon | longitude | degrees_east |
| nudge_wind_direction | model wind direction clockwise from North following oceanographic convention | degrees |
| nudge_wind_speed | NCEP wind speed | m s-1 |
| quality_indicator | quality indicator for wind retrieval | -1 |
| rain_speed_bias | atmospheric rain induced wind speed bias | m s-1 |
| real_wind_direction | non-neutral wind direction clockwise from North following oceanographic convention | degrees |
| real_wind_direction_error | non-neutral wind direction uncertainty | degrees |
| real_wind_speed | retrieved non-neutral 10m wind speed | m s-1 |
| real_wind_speed_error | non-neutral wind speed uncertainty | m s-1 |
| real_wind_u | retrieved non-neutral eastward wind speed component vector | m s-1 |
| real_wind_u_error | non-neutral eastward wind speed component vector uncertainty | m s-1 |
| real_wind_v | retrieved non-neutral northward wind speed component vector | m s-1 |
| real_wind_v_error | non-neutral northward wind speed component vector uncertainty | m s-1 |
| time | date and time | seconds since 1999-01-01 00:00:00 |
| wind_stress_direction | estimated ocean surface wind stress direction direction clockwise from North following oceanographic convention | degrees |
| 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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| READ-ME | |
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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. 2024. SCATSAT-1 Scatterometer Inter-Calibrated ESDR Level 2 Ocean Surface Equivalent Neutral Wind Vectors and Wind Stress Vectors Version 1.1. Ver. 1.1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/ESDSS-L2W11
For more information see Data Citations and Acknowledgments.
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| Version | Dataset | Version Date | Status | |
|---|---|---|---|---|
| 1.1 | SCATSAT-1 Scatterometer Inter-Calibrated ESDR Level 2 Ocean Surface Equivalent Neutral Wind Vectors and Wind Stress Vectors Version 1.1 | 2023-06-08 | COMPLETE | 2023-06-08T20:54:00.000Z |
| 1.0 | SCATSAT-1 Scatterometer Inter-Calibrated ESDR Level 2 Ocean Surface Equivalent Neutral Wind Vectors and Wind Stress Vectors Version 1.0 | 2023-01-04 | RETIRED. | 2023-01-04T19:05:00.000Z |