RapidScat Level 2B Ocean Wind Vectors in 12.5km Slice Composites Version 1.1

Description

This dataset contains the RapidScat Level 2B 12.5km Version 1.1 science-quality ocean surface wind vectors. The Level 2B wind vectors are binned on a 12.5 km Wind Vector Cell (WVC) grid and processed using the Level 2A Sigma-0 dataset. 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. This dataset is provided in a netCDF-3 file format that follows the netCDF-4 classic model (i.e., generated by the netCDF-4 API) and made available via FTP and OPeNDAP. For data access, please click on the "Data Access" tab above. This Version 1.1 dataset differs from the previous Version 1 dataset as follows: 1) A new neural network approach for high wind speeds provided rain corrections for the "retrieve_wind_speed" variable for wind speeds in excess of 15 m/s. 2) The data variables containing the number of measurements of each type for each wind vector cell have been corrected; these variables include "number_in_aft", "number_in_fore", "number_out_aft", and "number_out_fore". 3) The "wind_obj" data variable has been corrected to include the proper data for the conditional probability for the objective DIRTH function values. It is advised for users to avoid using the "wind_obj" variable in this dataset since it is minimally applicable and meant primarily for quality assurance; for users who wish to access the objective function values for each ambiguity, it is suggested to use only the "ambiguity_obj" variable. The "wind_obj" variable contains DIRTH probabilities (which are derived form the "ambiguity_obj" objective function values) in the range of 0 to 1 indicating the conditional probability that the true direction is within + or - 2.5 degrees of the retrieved wind direction given the observed backscatter measurements in the cell. If you have any questions, please contact podaac@podaac.jpl.nasa.gov

Resources

Name Format Description Link
5 https://podaac.jpl.nasa.gov%2FCitingPODAAC
5 http://podaac.jpl.nasa.gov%2Fdataset%2FRSCAT_LEVEL_2B_OWV_CLIM_12_V1
5 https://archive.podaac.earthdata.nasa.gov%2Fpodaac-ops-cumulus-docs%2Frapidscat%2Fopen%2FL1B%2Fdocs%2Frevtime.csv
5 https://archive.podaac.earthdata.nasa.gov%2Fpodaac-ops-cumulus-docs%2Frapidscat%2Fopen%2FL2B12%2Fdocs%2Frscat_l2b_user_guide_v1.pdf
5 https://winds.jpl.nasa.gov%2Fmissions%2FRapidScat%2F
5 https://directory.eoportal.org%2Fweb%2Feoportal%2Fsatellite-missions%2Fi%2Fiss-rapidscat
5 http://www.jpl.nasa.gov%2Fnews%2Ffact_sheets%2Fissrapidscat_factsheet.pdf
5 http://manati.star.nesdis.noaa.gov%2Frscat_images%2Fmonitor%2FRapidScat_Scheduled_Outages.txt
5 https://archive.podaac.earthdata.nasa.gov%2Fpodaac-ops-cumulus-docs%2Frapidscat%2Fopen%2FL2B12%2Fv1.1%2FREADME.txt
5 https://cmr.earthdata.nasa.gov%2Fvirtual-directory%2Fcollections%2FC2526576283-POCLOUD
5 https://search.earthdata.nasa.gov%2Fsearch%2Fgranules%3Fp%3DC2526576283-POCLOUD
5 https://podaac.jpl.nasa.gov%2FPodaac%2Fthumbnails%2FRSCAT_LEVEL_2B_OWV_COMP_12_V1.1.jpg
5 https://podaac.jpl.nasa.gov/CitingPODAAC
5 http://podaac.jpl.nasa.gov/dataset/RSCAT_LEVEL_2B_OWV_CLIM_12_V1
8 revtime.csv https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/rapidscat/open/L1B/docs/revtime.csv
33 rscat_l2b_user_guide_v1.pdf https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/rapidscat/open/L2B12/docs/rscat_l2b_user_guide_v1.pdf
5 https://winds.jpl.nasa.gov/missions/RapidScat/
5 https://directory.eoportal.org/web/eoportal/satellite-missions/i/iss-rapidscat
33 issrapidscat_factsheet.pdf http://www.jpl.nasa.gov/news/fact_sheets/issrapidscat_factsheet.pdf
5 RapidScat_Scheduled_Outages.txt http://manati.star.nesdis.noaa.gov/rscat_images/monitor/RapidScat_Scheduled_Outages.txt
5 README.txt https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/rapidscat/open/L2B12/v1.1/README.txt
5 https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2526576283-POCLOUD
5 https://search.earthdata.nasa.gov/search/granules?p=C2526576283-POCLOUD
22 RSCAT_LEVEL_2B_OWV_COMP_12_V1.1.jpg https://podaac.jpl.nasa.gov/Podaac/thumbnails/RSCAT_LEVEL_2B_OWV_COMP_12_V1.1.jpg

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  • earth-science-ocean-winds-oceans-surface-winds-ocean-surface-wind-vectors

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