SeaWinds on QuikSCAT Level 3 Sigma-0 Global Rectangular Browse Images
DOI10.5067/QSBYU-GLBIM
Short NameQSCAT_BYU_L3_OW_SIGMA0_GLOBAL_RECTANGULAR_BROWSE_IMAGES
DescriptionThis dataset contains GIF images of global, rectangular-gridded, daily averaged Sigma-0 retrievals 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 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 GIF image files are separated according to polarization, and the averaged Sigma-0 measurements are displayed in grayscale with no color bar. Very bright areas indicate high Sigma-0 averages. It should be noted that these GIF images are meant for browse purposes only and should not be considered science quality. The science quality source dataset containing the SIR files used to generate the GIF images is accessible here: http://podaac.jpl.nasa.gov/dataset/QSCAT_BYU_L3_OW_SIGMA0_GLOBAL_RECTANGULAR_BROWSE_MAPS_LITE. An additional complimentary dataset of SIR files contains the full daily Sigma-0 statistcs: http://podaac.jpl.nasa.gov/dataset/QSCAT_BYU_L3_OW_SIGMA0_GLOBAL_RECTANGULAR_BROWSE_MAPS_FULL. This dataset is generated by the Scatterometer Climate Record Pathfinder (SCP) project at BYU.
Version1
Dataset TypeCOMPLETE
MeasurementCRYOSPHERE > SEA ICE > ICE EXTENT
SPECTRAL/ENGINEERING > RADAR > SIGMA NAUGHT > Normalized Radar Cross-Section
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 Images. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/QSBYU-GLBIM

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