QuikSCAT Level 2B Ocean Wind Vectors in 12.5km Slice Composites Version 3.1
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DOI10.5067/QSX12-L2B31
Short NameQSCAT_LEVEL_2B_OWV_COMP_12_LCR_3.1
DescriptionThis dataset contains the latest reprocessed version 3.1 of the Level 2B science-quality ocean surface wind vector retrievals from the QuikSCAT scatterometer. The retrievals are provided on a non-uniform grid within the swath at 12.5 km pixel resolution. Higher resolution is achieved through a slice composite technique in which high resolution slice measurements from L1B data are composited into a 12.5 km wind vector cell. Version 3.1 processing begins with the same L1B (time-ordered backscatter) data as used in the previous Version 3.0 processing. Version 3.1 improves upon the previous Version 3.0 processing by incorporating enhanced coastal processing using a Land Contamination Ratio (LCR) method with a fixed threshold. The 12.5 km binning resolution combined with the LCR processing enables this dataset to provide wind vector retrievals with approximately half the coastal gap as compared to the Version 3.0 12.5 km L2B dataset. The geophysical model function used to produce the wind vector cell retrievals remains unchanged between Version 3.0 and 3.1. Each L2B file corresponds to a specific orbital revolution (rev) number, which begins at the southernmost point of the ascending orbit. This is the official dataset produced by the NASA QuikSCAT Project through the SeaWinds Processing and Analysis Center (SeaPAC). More details to the processing changes and improvements are to be published in the near future, but for now can be referenced by the following presentation: https://mdc.coaps.fsu.edu/scatterometry/meeting/docs/2016/Thu_AM/coastal-poster.pdf.
Version3.1
Dataset TypeCOMPLETE
MeasurementOCEANS > OCEAN WINDS > SURFACE WINDS
Processing Level2
CoverageRegion: GLOBAL
North Bounding Coordinate: 90 degrees
South Bounding Coordinate: -90 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 1999-Oct-27 to 2009-Nov-22
Granule Time Span: 1999-Oct-27 to 2009-Nov-22
ResolutionSpatial Resolution: 12.5 km (Along) x 12.5 km (Across)
ProjectionProjection Type: Swath
Projection Detail: Along-track Grid
Ellipsoid: WGS 84
Swath Width1800 km
Platform/Sensor
QUIKSCAT
Platform
Name: QUIKSCAT (QUIKSCAT)
Orbit Period: 100.93 minutes
Inclination Angle: 98.6 degrees
/
SEAWINDS
SENSOR
Name: SeaWinds Scatterometer (SEAWINDS)
Swath Width: 1800.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectQuick Scatterometer (QUIKSCAT)
Data ProviderPublisher: SeaPAC
Creator: SeaPAC
Release Place: PO.DAAC
Release Date: 2016-Jul-12
Resource: https://podaac-tools.jpl.nasa.gov/drive/files/allData/quikscat/L2B12/docs/qscat_l2b_v3_ug_v1_0.pdf

Keyword(s)wind data, wind, ocean wind, wind speed, vector, vectors, ocean wind vector, ocean wind vectors, seawinds, quikscat, scatterometer, l2b, version 3.1, v3.1, level 2, level 2b
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Direct Access
PO.DAAC DRIVEhttps://podaac-tools.jpl.nasa.gov/drive/files/allData/quikscat/L2B12/v3.1
PO.DAAC Drive
OPENDAP DATAhttps://podaac-opendap.jpl.nasa.gov/opendap/allData/quikscat/L2B12/v3.1/
The OPeNDAP base directory location for the collection.
Format (Compression)NETCDF
GENERAL DOCUMENTATION
USER'S GUIDE
ANOMALIES
DATA CITATION POLICY
Citation SeaPAC. 2016. QuikSCAT Level 2B Ocean Wind Vectors in 12.5km Slice Composites Version 3.1. Ver. 3.1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/QSX12-L2B31

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