RapidScat Level 1B Time-Ordered Geo-Located Sigma-0 Version 2.0

Description

This dataset contains the ISS-RapidScat Version 2.0 Level 1B 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. Version 2.0 represents a complete historical re-processing of the L1B data record (see the technical note for Version 2.0 under Documentation). Data are provided in single-orbit files in HDF-4 format. 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) https://podaac.jpl.nasa.gov/dataset/RSCAT_L2A_25KM_V2.0 or 2) https://podaac.jpl.nasa.gov/dataset/RSCAT_L2A_12KM_V2.0. If you have any questions or concerns, please visit our Forum at https://podaac.jpl.nasa.gov/forum/. 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 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.

Resources

Name Format Description Link
21 Text file containing reverse chronological list of future scheduled outages and past outages. A start/stop date/time and description is provided for each outage. This list is maintained by NOAA/NESDIS to service near-real-time data users. http://manati.star.nesdis.noaa.gov/rscat_images/monitor/RapidScat_Scheduled_Outages.txt
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FRSCAT-L1B20
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/RSCAT_L1B_V1.3.jpg
21 Data Use and Citation Policy https://podaac.jpl.nasa.gov/CitingPODAAC
21 HTTPS endpoint for data browse and download https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2633943129-POCLOUD
8 ASCII CSV orbital revolution time tables with quality assurance information. https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/rapidscat/open/L1B/docs/revtime.csv
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C2633943129-POCLOUD
21 Technical note for Version 2.0 https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/rapidscat/open/L1B/docs/v2.0_technical_note.txt
33 Summary of Facts on the ISS-RapidScat Mission https://d2pn8kiwq2w21t.cloudfront.net/documents/issrapidscat_factsheet.pdf
21 Detailed background information on the ISS-RapidScat mission published by the eoPortal. https://directory.eoportal.org/web/eoportal/satellite-missions/i/iss-rapidscat

Tags

  • spectral-engineering
  • radar
  • earth-science

Topics

Categories