RapidScat Level 1B Time-Ordered Geo-Located Sigma-0 Version 1.1

(RSCAT_L1B_V1.1)
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1 Publication Cited this Dataset
Citation metrics available for years (2014-2020)
DOI10.5067/RSCAT-L1B01
Short NameRSCAT_L1B_V1.1
DescriptionThis 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. Data are provided in single-orbit files in HDF-4 format. RapidScat is a Ku-band dual beam circular rotating scatterometer retaining much of the same hardware and functionality of QuikSCAT, with exception of the antenna sub-system and digital interface to the International Space Station (ISS) Columbus module, which is where RapidScat is mounted. The NASA mission is officially referred to as ISS-RapidScat. Unlike QuikSCAT, ISS-RapidScat is not in sun-synchronous orbit, and flies at roughly half the altitude with a low inclination angle that restricts data coverage to the tropics and mid-latitude regions; the extent of latitudinal coverage stretches from approximately 61 degrees North to 61 degrees South. Furthermore, there is no consistent local time of day retrieval. Caution: this dataset is intended for expert use only. If you must use RapidScat Sigma-0 data but you are unsure about how to use the L1B data record, please consider using either of the following L2A datasets: 1) http://podaac.jpl.nasa.gov/dataset/RSCAT_L2A_12KM_V1.1 or 2) http://podaac.jpl.nasa.gov/dataset/RSCAT_L2A_25KM_V1.1.
Version1.1
Dataset TypeCOMPLETE
MeasurementSPECTRAL/ENGINEERING > RADAR > SIGMA NAUGHT
Processing Level1B
CoverageRegion: GLOBAL
North Bounding Coordinate: 61 degrees
South Bounding Coordinate: -61 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 2014-Oct-03 to 2016-Mar-10
Granule Time Span: 2014-Oct-03 to 2016-Mar-10
ResolutionSpatial Resolution: 7 km (Along) x 25 km (Across)
ProjectionEllipsoid: WGS 84
Swath Width900 km
Platform/Sensor
ISS
Platform
Name: International Space Station (ISS)
Orbit Period: 92.91 minutes
Inclination Angle: 51.65 degrees
/
RapidScat
SENSOR
Name: Rapid Scatterometer (RapidScat)
Swath Width: 1100.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectInternational Space Station Rapid Scatterometer (ISS_RapidScat)
Data ProviderPublisher: PO.DAAC
Creator: RapidScat Project
Release Place: PO.DAAC
Release Date: 2015-Sep-01
Resource: http://www.jpl.nasa.gov/news/fact_sheets/issrapidscat_factsheet.pdf

Keyword(s)international space station, space station, iss, rapidscat, rscat, iss-rapidscat, radar, ocean, roughness, ocean roughness, backscatter, normalized radar cross-section, normalized radar cross section, nrcs, dB, sigma-0, sigma0, sigma naught, scatterometer, seawinds, L1B, L1, 1B, Level 1B, Level 1, version 1, v1, version 1.1, v1.1, V1.1, 1.1
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
DIRECT ACCESS
PO.DAAC DRIVEhttps://podaac-tools.jpl.nasa.gov/drive/files/allData/rapidscat/L1B/v1.1
PO.DAAC Drive
OPENDAP DATAhttps://podaac-opendap.jpl.nasa.gov/opendap/allData/rapidscat/L1B/v1.1/
The OPeNDAP base directory location for the collection.
FormatHDF
GENERAL DOCUMENTATION
ANOMALIES
DATA CITATION POLICY
Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
Citation RapidScat Project. 2015. RapidScat Level 1B Time-Ordered Geo-Located Sigma-0 Version 1.1. Ver. 1.1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/RSCAT-L1B01

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For more information see Data Citations and Acknowledgments.

Journal Reference Fore, A.G., Stiles, B.W., Chau, A.H., Williams, B.A., Dunbar, R. S., Rodriguez E., 2013: Point-wise Wind Retrieval and Ambiguity Removal Improvements for the QuikSCAT Climatological Data Set. IEEE Trans. Geoscience and Remote Sensing, doi:10.1109/TGRS.2012.2235843. [Special Note: This paper describes the wind retrieval algorithm used to process the QuikSCAT version 3 wind product. The RapidScat data was processed using the same technique.]

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VersionDatasetVersion DateStatus
1.1RapidScat Level 1B Time-Ordered Geo-Located Sigma-0 Version 1.12015-03-26COMPLETE2015-03-26T21:35:18.626Z
1.2RapidScat Level 1B Time-Ordered Geo-Located Sigma-0 Version 1.22016-04-19COMPLETE2016-04-19T00:46:28.729Z
1.3RapidScat Level 1B Time-Ordered Geo-Located Sigma-0 Version 1.32016-09-28COMPLETE2016-09-28T00:59:40.180Z