SeaWinds on QuikSCAT Level 3 Sigma-0 Polar-Stereographic Browse Maps (Reduced) of Antarctica
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DOI10.5067/QSBYU-ANBML
Short NameQSCAT_BYU_L3_OW_SIGMA0_ANTARCTICA_POLAR-STEREOGRAPHIC_BROWSE_MAPS_LITE
DescriptionThis dataset contains polar-stereographic-gridded, daily averaged Sigma-0 retrievals over the Antarctic Polar region from the QuikSCAT L1B retrievals, which are generated using a Scatterometer Image Reconstruction (SIR) technique developed by Dr. David Long at Brigham Young University (BYU); the processed files are therefore known as SIR files. The QuikSCAT scatterometer scans at two nominal incidence angles, 46 degrees and 54.1 degrees, corresponding to the inner and outer beams respectively. The inner beam is horizontally polarized while the outer beam is vertically polarized. The SIR files are separated according to polarization. For example, one SIR file for a particular day will contain the gridded average Sigma-0 values for the horizontally polarized L1B retrievals, while the other will contain those from the vertically polarized L1B retrievals. These SIR files were also used to generate a complimentary dataset of GIF images representing the daily averaged Sigma-0, which is meant for browse purposes only and available here: http://podaac.jpl.nasa.gov/dataset/QSCAT_BYU_L3_OW_SIGMA0_ANTARCTICA_POLAR-STEREOGRAPHIC_BROWSE_IMAGES. An expanded version of this dataset includes the full daily Sigma-0 statistcs: http://podaac.jpl.nasa.gov/dataset/QSCAT_BYU_L3_OW_SIGMA0_ANTARCTICA_POLAR-STEREOGRAPHIC_BROWSE_MAPS_FULL. This dataset is provided by the Scatterometer Climate Record Pathfinder (SCP) project at BYU.
Version1
Dataset TypeCOMPLETE
MeasurementSPECTRAL/ENGINEERING > RADAR > SIGMA NAUGHT
CRYOSPHERE > SEA ICE > ICE EXTENT
Processing Level3
CoverageRegion: ANTARCTICA
Region: POLAR
Region: ANTARCTICA
Region: ARCTIC
Region: ANTARCTICA
Region: ANTARCTICA
Region: ARCTIC
Region: ANTARCTICA
North Bounding Coordinate: -70 degrees
South Bounding Coordinate: -89.6 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 1999-Jul-19 to 2009-Nov-21
Granule Time Span: 1999-Jul-19 to 2009-Nov-21
ResolutionSpatial Resolution: 0.201 degrees (Latitude) x 0.201 degrees (Longitude)
Temporal Resolution: 1 Day
ProjectionProjection Type: Gridded
Projection Detail: Polar-Stereographic
Ellipsoid: WGS 84
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.

ProjectScatterometry Climate Record Pathfinder (SCP)
Data ProviderPublisher: PO.DAAC
Creator: BYU/SCP
Release Place: PO.DAAC
Release Date: 2001-Mar-20
Resource: https://podaac-tools.jpl.nasa.gov/drive/files/allData/quikscat/L3/byu_scp/sigma0browse/docs/dLongSigBrw.pdf

Keyword(s)sigma-0, sigma0, backscatter, sir, byu, scp, david long
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
DATA CITATION POLICY
Citation BYU/SCP. 2001. SeaWinds on QuikSCAT Level 3 Sigma-0 Polar-Stereographic Browse Maps (Reduced) of Antarctica. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/QSBYU-ANBML

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For more information see Data Citations and Acknowledgments.

Journal Reference Chen, R. and D. Long. March, 2001. BYU Daily Browse Images of QuikSCAT Sigma-0 Measurements. JPL Document D-20412. Jet Propulsion Laboratory, Pasadena, CA.

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