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RapidScat Level 2A Surface Flagged Sigma-0 and Attenuations in 12.5km Swath Grid Version 2.0

Metadata Updated: December 6, 2023

This dataset contains the Version 2.0 ISS-RapidScat on Level 2A 12.5 km science data record, which provides surface-flagged sigma-0 in 12.5 km Wind Vector Cells processed using the pulse "slice" Sigma-0 data provided by the Level 1B dataset. Due to the circular scan of the RapidScat instrument the expected number of Sigma-0 cells per WVC is not constant. To minimize the L2A data volume, the Sigma-0 cell data are stored as "lists" for each WVC row, with each list indexed by a "cell_index" array to indicate the cross-track WVC membership of the data. Each cell is then checked for land or ice and flagged accordingly. Attenuation corrections for each Sigma-0 measurement are also provided. Data are provided in single-orbit files in HDF-4 format. Version 2.0 represents a complete historical re-processing of the L2A data record (see the technical note for Version 2.0 under Documentation). 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. If you have any questions or concerns, please visit our Forum at https://podaac.jpl.nasa.gov/forum/.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date May 30, 2023
Metadata Updated Date December 6, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

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Additional Metadata

Resource Type Dataset
Metadata Created Date May 30, 2023
Metadata Updated Date December 6, 2023
Publisher NASA/JPL/PODAAC
Maintainer
Identifier C2633944131-POCLOUD
Data First Published 2016-09-28
Language en-US
Data Last Modified 2017-04-28
Category ISS_RapidScat, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation RapidScat Project. 2023-05-15. RapidScat Level 2A Surface Flagged Sigma-0 and Attenuations in 12.5Km Swath Grid. Version 2.0. RapidScat Level 2A Surface Flagged Sigma-0 and Attenuations in 12.5Km Swath Grid Version 2.0. PO.DAAC. Archived by National Aeronautics and Space Administration, U.S. Government, PO.DAAC. https://doi.org/10.5067/RSX12-L2A20. https://d2pn8kiwq2w21t.cloudfront.net/documents/issrapidscat_factsheet.pdf. RapidScat Project, PO.DAAC, 2023-15-15, RapidScat Level 2A Surface Flagged Sigma-0 and Attenuations in 12.5Km Swath Grid Version 2.0, https://d2pn8kiwq2w21t.cloudfront.net/documents/issrapidscat_factsheet.pdf.
Creator RapidScat Project
Graphic Preview Description Thumbnail
Graphic Preview File https://podaac.jpl.nasa.gov/Podaac/thumbnails/RSCAT_L2A_12KM_V1.3.jpg
Harvest Object Id e6389efc-5f70-494f-9b2a-eda925719223
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/RSX12-L2A20
Metadata Type geospatial
Old Spatial -180.0 -61.0 180.0 61.0
Program Code 026:001
Release Place PO.DAAC
Series Name RapidScat Level 2A Surface Flagged Sigma-0 and Attenuations in 12.5Km Swath Grid
Source Datajson Identifier True
Source Hash de140cc136165c33cf0cca1419d7f2be8c5c17a7dc5522d0124126a6692c6f91
Source Schema Version 1.1
Spatial
Temporal 2014-10-03T00:00:00Z/2016-08-19T23:59:59.999Z

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