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| DOI | 10.5067/SSCH3-01XM1 |
| Short Name | CHELTON_SEASAT_SASS_L3 |
| Description | Contains monthly averaged ocean surface wind stress derived from Seasat-A Scatterometer (SASS) wind retrievals, from July 1978 until October 1978, gridded on a 2.5-degree by 2.5 degree global grid. The vector average wind stress is stored in units of dynes per centimeter squared (dyn/cm^2). Data is provided in formatted ASCII text. The primary data set used to construct these wind stress fields consists of 96 days of SASS vector winds supplied by Robert Atlas at GSFC. The directional ambiguities in the raw SASS data had been objectively removed using the GSFC Laboratory for Atmospheric Sciences atmospheric general circulation model. |
| Version | 1 |
| Dataset Type | OPEN |
| Measurement | OCEANS > OCEAN WINDS > WIND STRESS > OCEAN SURFACE WIND STRESS VECTORS |
| Processing Level | 3 |
| Coverage | Region: Global Northernmost Latitude: 70 degrees Southernmost Latitude: -70 degrees Westernmost Longitude: 0 degrees Easternmost Longitude: 360 degrees Time Span: 1978-Jul-07 to 1978-Oct-10 Granule Time Span: 1978-Jul-07 to 1978-Oct-10 |
| Resolution | Spatial Resolution: 2.5 degrees (Latitude) x 2.5 degrees (Longitude) Temporal Resolution: 1 Month |
| Projection | Type: Gridded Detail: Ellipsoid: Unknown |
| Latency | hours |
| Platform/Sensor | SEASAT-A / Platform Name: SEASAT-A (SEASAT-A) Orbit Period: 100.7 minutes Inclination Angle: 108 degrees Ascending Node: 1978-Jul-07 00:00:00 SASS SENSOR Name: Seasat-A Scatterometer System (SASS) Swath Width: 1900 km Description: The Seasat-A Satellite Scatterometer (SASS) contains four dual-polarized (both vertical and horizontal) fan-beam radar antennas, which were designed to produce an X-shaped scanning pattern across Earth's surface. The SASS radar was designed to transmit at a frequency of 14.6 GHz (Ku-band). SASS provided 95% global coverage every 36 hours at a sampling footprint of approximately 50 km within a 1900 km-wide swath. SASS was designed to measure radar backscatter sensitive to wind speeds from 4-26 m s-1 referenced to 10 meters above the ocean surface. SASS was intended to be accurate to within 2 m s-1 or 10% (whichever is greater) of the observed wind speed and within 20¿ of the observed wind direction. |
| Project | SEASAT (SEASAT) |
| Data Provider | Creator: GSFC/JPL Release Place: PO.DAAC Release Date: 1996-Apr-18 Resource: https://podaac-tools.jpl.nasa.gov/drive/files/pub/documents/dataset_docs/seasat_chelton.html |
| Persistent ID | PODAAC-SSCH3-01XM1 |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
| PO.DAAC DRIVE | https://podaac-tools.jpl.nasa.gov/drive/files/allData/seasat/L3/sass_monthly_Chelton |
| Format (Compression) | ASCII (none) |
| Web Service | https://podaac.jpl.nasa.gov/ws/search/granule/?datasetId=PODAAC-SSCH3-01XM1&apidoc (Search Granule) |
| Citation | GSFC/JPL. 1996. SEASAT SCATTEROMETER DERIVED GLOBAL GRIDDED MONTHLY OCEAN WIND STRESS (Chelton). Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/SSCH3-01XM1.
For more information see Data Citations and Acknowledgments.
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| Journal Reference | Case, K and D.B. Chelton. SEASAT-A Scatterometer Global Gridded Monthly Surface Wind Stress User Guide. June 16, 1997. | |||||||
