SeaWinds on QuikSCAT Level 3 Sigma-0 Global Rectangular Browse Maps (Complete)
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DOI10.5067/QSBYU-GLBMF
Short NameQSCAT_BYU_L3_OW_SIGMA0_GLOBAL_RECTANGULAR_BROWSE_MAPS_FULL
DescriptionThis dataset contains global, rectangular-gridded Sigma-0 retrieval statistics from SeaWinds on QuikSCAT 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 SeaWinds 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 all contained within a single tar file for a given day. When the tar file is unpacked, the individual SIR files are separated according to polarization and the corresponding retrieval statistic (i.e., daily average, standard deviation, and daily measurement counts). Consequently, there are 6 SIR files contained within each unpacked tar file. 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_GLOBAL_RECTANGULAR_BROWSE_IMAGES. An additional complimentary dataset includes a reduced version of these Sigma-0 retrieval statistics by providing only the daily Sigma-0 average: http://podaac.jpl.nasa.gov/dataset/QSCAT_BYU_L3_OW_SIGMA0_GLOBAL_RECTANGULAR_BROWSE_MAPS_LITE. This dataset is generated by the Scatterometer Climate Record Pathfinder (SCP) project at BYU.
Version1
Dataset TypeCOMPLETE
MeasurementSPECTRAL/ENGINEERING > RADAR > SIGMA NAUGHT > Normalized Radar Cross-Section
CRYOSPHERE > SEA ICE > ICE EXTENT
Processing Level3
CoverageNorth Bounding Coordinate: 89.6 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
ProjectionEllipsoid: 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 meters
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
Keyword(s)sigma-0, sigma0, backscatter, sir, byu, scp, david long
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Citation BYU/SCP. 2001. SeaWinds on QuikSCAT Level 3 Sigma-0 Global Rectangular Browse Maps (Complete). Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/QSBYU-GLBMF

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