RapidScat Level 2B Climate Ocean Wind Vectors in 12.5km Footprints
(RSCAT_LEVEL_2B_OWV_CLIM_12_V1)
2 Publications Cited this Dataset
Citation metrics available for years (2014-2022)
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Publications citing RapidScat Level 2B Climate Ocean Wind Vectors in 12.5km Footprints
Citation metrics available for years (2014-2022)
| Year | Citation |
|---|---|
| 2017 | Investigating the seasonal and diurnal cycles of ocean vector winds near the Philippines using RapidScat and CCMP, Journal of Geophysical Research: Atmospheres ,https://doi.org/10.1002/2017JD027516 |
| 2019 | Canada Meteorological Center (2012). GHRSST Level 4 CMC0.2deg Global Foundation Sea Surface Temperature Analysis (GDS version 2). Ver. 2.0. PO.DAAC, CA. Available online at: https://podaac.jpl.nasa.gov/dataset/CMC0.2deg-CMC-L4-GLOB-v2.0 (accessed April 9, 2019). Regional structure in the marine heat wave of summer 2015 off the western United States, Frontiers in Marine Science ,https://doi.org/10.3389/fmars.2019.00564 |
| Version | 1.0 |
| Processing Level | 2 |
| Start/Stop Date | 2014-Oct-03 to 2016-Aug-19 |
| Short Name | RSCAT_LEVEL_2B_OWV_CLIM_12_V1 |
| Description | This dataset contains the RapidScat Level 2B 12.5km Version 1.0 Climate 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 using the "full aperture" normalized radar cross-section (NRCS, a.k.a. Sigma-0) from the L1B 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 Direct Download and OPeNDAP. For data access, please click on the "Data Access" tab above. This climate quality data set differs from the nominal "slice" L2B dataset as follows: 1) it uses full antenna footprint measurements (~20-km) without subdividing by range (~7-km) and 2) the absolute calibration has been modified for the two different low signal-to-noise ratio (SNR) mode data sets: LowSNR1 14 August 2015 to 18 September 2015; LowSNR2 6 October 2015 to 7 February 2016. The above enhancements allow this dataset to provide consistent calibration across all SNR states. Low SNR periods and other key quality control (QC) issues are tracked and kept up-to-date in PO.DAAC Drive at https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/rapidscat/open/L1B/docs/revtime.csv. If you have any questions, please visit our user forums: https://podaac.jpl.nasa.gov/forum/. |
| DOI | 10.5067/RSX12-L2C11 |
| Measurement | OCEANS > OCEAN WINDS > SURFACE WINDS |
| Swath Width | 900 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. |
| Project | International Space Station Rapid Scatterometer (ISS_RapidScat) |
| Data Provider | Publisher: PO.DAAC Creator: RapidScat Project Release Place: PO.DAAC Release Date: 2016-May-06 Resource: http://www.jpl.nasa.gov/news/fact_sheets/issrapidscat_factsheet.pdf |
| Format | netCDF-4 |
| Keyword(s) | international space station, space station, iss, rapidscat, rscat, iss-rapidscat, winds, wind, ocean, ocean wind, ocean winds, ocean surface wind vectors, surface wind vectors, wind speed, wind direction, climate, clim, cdr, climate data record, scatterometer, quikscat, seawinds, l2b, l2, level 2, level 2b, version 1, v1, version 1.0, v1.0, V1.0, 1.0 |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution Spatial Resolution: 12.5 Kilometers x 12.5 Kilometers Temporal Resolution: 12 Hour Coverage Region: 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-Aug-19 Granule Time Span: 2014-Oct-03 to 2016-Aug-19Swath Width: 900 km Projection Projection Type: Swath Projection Detail: Along-track Grid Ellipsoid: WGS 84 |
| DIRECT ACCESS | |
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| Available for access in-region with AWS Cloud | |
Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/RSCAT_LEVEL_2B_OWV_CLIM_12_V1/ | |
| podaac-ops-cumulus-public/RSCAT_LEVEL_2B_OWV_CLIM_12_V1/ | |
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| Name | Long Name | Unit |
|---|---|---|
| ambiguity_direction | wind direction ambiguity | degrees |
| ambiguity_obj | wind objective function values | 1 |
| ambiguity_speed | wind speed ambiguity | m s-1 |
| atmospheric_speed_bias | atmospheric speed bias | m s-1 |
| cross_track_wind_speed_bias | relative wind speed bias with respect to sweet spot | m s-1 |
| eflags | extended wind vector cell quality flags | bit |
| flags | wind vector cell quality flags | bit |
| lat | latitude | degrees_north |
| lon | longitude | degrees_east |
| nudge_wind_direction | model wind direction | degrees |
| nudge_wind_speed | model wind speed | m s-1 |
| num_ambiguities | number of ambiguous wind directions found in point-wise wind retrieval prior to spatial filtering | 1 |
| number_in_aft | number of inner aft looks in wind vector cell | 1 |
| number_in_fore | number of inner forward looks in wind vector cell | 1 |
| number_out_aft | number of outer aft looks in wind vector cell | 1 |
| number_out_fore | number of outer forward looks in wind vector cell | 1 |
| rain_impact | impact of rain upon wind vector retrieval | 1 |
| retrieved_wind_direction | equivalent neutral wind direction at 10 m | degrees |
| retrieved_wind_speed | equivalent neutral wind speed at 10 m | m s-1 |
| retrieved_wind_speed_uncorrected | wind speed without rain correction | m s-1 |
| time | date and time | seconds since 1999-1-1 0:0:0 |
| wind_obj | retrieved wind objective function value | 1 |
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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. 2016. Rapidscat Level 2B Climate Ocean Wind Vectors in 12.5km Footprints. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/RSX12-L2C11
For more information see Data Citations and Acknowledgments.
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| 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, with the addition of utilizing the full aperture NRCS data.] . |
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| Version | Dataset | Version Date | Status | |
|---|---|---|---|---|
| 2.0 | RapidScat Level 2B Climate Ocean Wind Vectors in 12.5km Footprints Version 2.0 | 2021-08-03 | COMPLETE | 2021-08-03T20:48:00.000Z |
| 1.0 | RapidScat Level 2B Climate Ocean Wind Vectors in 12.5km Footprints | 2023-01-10 | COMPLETE | 2023-01-10T05:58:00.000Z |