NSCAT High-Resolution MGDR, Sigma-0 and Ocean Wind Vectors (Dunbar)
(NSCAT_25KM_MGDR_V2)This dataset will be available through Earthdata Cloud only, starting September, 2022. Learn More
| DOI | 10.5067/NSMGD-SIGW2 |
| Short Name | NSCAT_25KM_MGDR_V2 |
| Description | The NASA Scatterometer (NSCAT) Level 2.5 high-resolution merged ocean wind vectors and sigma-0 in 25 km wind vector cell (WVC) swaths contain daily data from ascending and descending passes. Wind vectors are accurate to within 2 m/s (vector speed) and 20 degrees (vector direction). Wind vectors are not considered valid in rain contaminated regions; rain flags and precipitation information are not provided. Data is flagged where measurements are either missing or ambiguous. In the presence of land or sea ice winds values are set to 0, and sigma-0 values are preserved where measurements are available. This is the most up-to-date version, which designates the final phase of calibration, validation and science data processing, which was completed in November of 1998, on behalf of the JPL NSCAT Project; wind vectors are processed using the NSCAT-2 geophysical model function. |
| Version | 2 |
| Dataset Type | COMPLETE |
| Measurement | SPECTRAL/ENGINEERING > RADAR > SIGMA NAUGHT CRYOSPHERE > SEA ICE > ICE EXTENT OCEANS > OCEAN WINDS > SURFACE WINDS |
| Processing Level | 2 |
| 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: 1996-Sep-15 to 1997-Jun-29 |
| Resolution | Spatial Resolution: 25 km (Along) x 25 km (Across) |
| Projection | Projection Type: Swath Ellipsoid: WGS 84 |
| Swath Width | 1600 km |
| Platform/Sensor | ADEOS-I / Platform Name: Advanced Earth Observing Satellite-I (ADEOS-I) Orbit Period: 100.92 minutes Inclination Angle: 98.59 degrees NSCAT SENSOR Name: NASA Scatterometer (NSCAT) Swath Width: 1600.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. |
| Project | NASA Scatterometer (NSCAT) |
| Data Provider | Publisher: PO.DAAC Creator: NASA/JPL/PO.DAAC Release Place: PO.DAAC Release Date: 2006-Feb-20 Resource: https://podaac-tools.jpl.nasa.gov/drive/files/pub/ocean_wind/nscat/doc/l25_usersguide.pdf |
| Keyword(s) | wind data, wind, ocean wind, wind speed, vector, vectors, ocean wind vector, ocean wind vectors, nscat, adeos, scatterometer, mgdr |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
| DIRECT ACCESS | |
| PO.DAAC DRIVE | https://podaac-tools.jpl.nasa.gov/drive/files/allData/nscat/L25/v2 PO.DAAC Drive |
| Web Service | https://podaac.jpl.nasa.gov/ws/search/granule/?datasetId=PODAAC-NSMGD-SIGW2&apidoc (Search Granule) |
| Format | RAW |
| DATA CITATION POLICY | |
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| Citation | NASA/JPL/PO.DAAC. 2006. NSCAT High-Resolution MGDR, Sigma-0 and Ocean Wind Vectors (Dunbar). Ver. 2. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/NSMGD-SIGW2
For more information see Data Citations and Acknowledgments.
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| Version | Dataset | Version Date | Status | |
|---|---|---|---|---|
| 1 | NSCAT High-Resolution MGDR, Sigma-0 and Ocean Wind Vectors (Version 1) | 1970-01-01 | RETIRED | |