SeaWinds on QuikSCAT Level 1B Time-Ordered Earth-Located Sigma0 Version 2
3 Publications Cited this Dataset
Citation metrics available for years (2015-2019)
DOI10.5067/QSXXX-L1B02
Short NameQSCAT_LEVEL_1B_V2
DescriptionThe SeaWinds on QuikSCAT Level 1B dataset contains the geo-located Sigma-0 measurements and antenna pulse "egg" and "slice" geometries as derived from ephemeris and the Level 1A dataset. The pulse "egg" represents the complete footprint of the pulse, which has a spatial geometry of approximately 25 km by 35 km. There are 8 slices that constitute the range-binned components of a pulse each of which has a spatial geometry of approximately 25 km by 7 km. The orientation of the long dimension of the slices varies with the rotation of the antenna and thus does not align with the along/across track orientation of the wind vector grid in the L2B/L2A products. This dataset represents the second reprocessed version of the Level 1B release. Special note: QuikSCAT went into a "non-spinning" mode on 22 November 2009. The final rev number in the nominal Operational "spinning" mode is 54296; the "non-spinning" mode of the instrument continued predominantly until the end of the time series. There were some brief periods of "spinning" in between, which include the following days and rev numbers (identified in parenthesis): 1) 29 January 2013 to 5 February 2013 (7909-71011), 2) 14 March 2013 (71536-71549), 3) 18 March 2013 to 21 March 2013 (71590-71634), and 4) 28 March 2013 to 31 March 2013 (71735-71769). Data during the "non-spinning" mode is not consistently calibrated with data from the "spinning" mode. Furthermore, incidence angles change periodically during the "non-spinning" mode. It is therefore advised that only "expert" users attempt using the data during the "non-spinning" mode. For standard L1B data users who wish to access consistently calibrated L1B data during the "non-spinning" mode, please consider using the L1B Averaged Sigma-0 dataset as alternative, which may be accessed by contacting podaac@podaac.jpl.nasa.gov
Version2
Dataset TypeCOMPLETE
MeasurementSPECTRAL/ENGINEERING > RADAR > SIGMA NAUGHT
Processing Level1B
CoverageRegion: GLOBAL
North Bounding Coordinate: 89.875 degrees
South Bounding Coordinate: -89.875 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 1999-Jul-07 to 2014-Nov-12
Granule Time Span: 2010-Mar-18 to 2015-Nov-12
ResolutionSpatial Resolution: 7 km (Along) x 25 km (Across)
ProjectionEllipsoid: 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: PO.DAAC
Creator: JPL QuikSCAT Project
Release Place: PO.DAAC
Release Date: 2006-Jul-19
Resource: https://podaac-tools.jpl.nasa.gov/drive/files/allData/quikscat/L1B/v2/docs/QSUG_v3.pdf

Keyword(s)ocean, roughness, ocean roughness, radar, backscatter, normalized radar cross-section, normalized radar cross section, nrcs, sigma-0, sigma0, sigma naught, dB, L1B, level 1B, 1B scatterometer, quikscat, qscat, seawinds
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/L1B/v2
PO.DAAC Drive
OPENDAP DATAhttps://podaac-opendap.jpl.nasa.gov/opendap/allData/quikscat/L1B/v2/
The OPeNDAP base directory location for the collection.
Format (Compression)HDF
Read Software
ANOMALIES
USER'S GUIDE
DATA CITATION POLICY
Citation JPL QuikSCAT Project. 2006. SeaWinds on QuikSCAT Level 1B Time-Ordered Earth-Located Sigma0 Version 2. Ver. 2. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/QSXXX-L1B02

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