QuikSCAT Level 2B Ocean Wind Vectors in 12.5km Slice Composites Version 4.0
4 Publications Cited this Dataset
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Publications citing QuikSCAT Level 2B Ocean Wind Vectors in 12.5km Slice Composites Version 4.0
Citation metrics available for years (2015-2019)
| Year | Citation |
|---|---|
| 2017 | Validation of gridded data set of global surface wind/wind-stress vector field, Journal of Oceanography,https://doi.org/10.1007/s10872-017-0419-z |
| 2017 | Use of an optimum interpolation method to construct a high-resolution global ocean surface vector wind dataset from active scatterometers and passive radiometers, International Journal of |
| 2019 | SeaPAC, 2013. Oceansat-2 Scatterometer Level 2B Ocean Wind Vectors in 12.5km Slice Composites Version 2. Ver. 2. PO.DAAC, CA, USA. Dataset accessed [2018-11-11] at. https://doi.org/10.5067/OSCT2-L2BV2. Inconsistencies in scatterometer wind products based on ASCAT and OSCAT-2 collocations, Remote Sensing of Environment,https://doi.org/10.1016/j.rse.2019.03.005 |
| 2019 | SeaPAC (2018). QuikSCAT level 2B ocean wind vectors in 12.5 km slice composites version 4.0. (Ver. 4. PO.DAAC, CA, USA. Dataset accessed 2018‐08‐01) https://doi.org/10.5067/QSX12‐L2B40 Systematic scatterometer wind errors near coastal mountains, Earth and Space …,https://doi.org/10.1029/2019EA000757 |
| DOI | 10.5067/QSX12-L2B40 |
| Short Name | QSCAT_LEVEL_2B_OWV_COMP_12_KUSST_LCRES_4.0 |
| Description | This dataset contains the latest reprocessed version 4.0 of the Level 2B science-quality ocean surface wind vector retrievals from the QuikSCAT scatterometer. The retrievals are provided on a non-uniform grid within the swath at 12.5 km pixel resolution. Higher resolution is achieved through a slice composite technique in which high resolution slice measurements from L1B data are composited into a 12.5 km wind vector cell. Each L2B file corresponds to a specific orbital revolution (rev) number, which begins at the southernmost point of the ascending orbit. This is an official dataset produced by the NASA QuikSCAT Project through the SeaWinds Processing and Analysis Center (SeaPAC). Version 4.0 processing begins with the same L1B (time-ordered backscatter) data as used in the previous Version 3.1 processing. The new version has three important improvements over the previous version 3.1. First, a sea-surface temperature (SST) dependent geophysical model function (GMF) developed by Lucrezia Ricciardulli of Remote Sensing Systems is used in wind retrieval in order to fix persistent speed biases in Ku-band data over cold ocean. Second, near coastal winds are retrieved using the Land Contamination Ratio with Expected Sigma-0 (LCRES) technique which retrieves winds significantly closer to the coast than has been done before. Third, flagging is simplified and extra flags are provided. All of the legacy quality flags are preserved with the same meaning. A new single bit wind_retrieval_likely_corrupted_flag is established for conditions in which approximately 3% (or greater) of the data comprising a wind vector cell (WVC) exhibits suboptimal performance due to rain, ice, or a few other rare anomalous cases. Another bit wind_retrieval_possibly_corrupted_flag is established for conditions in which approximately 15% of the data comprising a WVC near rain, ice, or a coastal boundary is thought to be high quality but may not match up well with numerical wind models due to either remaining rain/ice/land contamination or variability in the winds near ice, rain, and coasts that are not reflected in the numerical weather prediction (NWP) matchups. In addition to these two new bits, copious quality information is provided in the flags and eflags variables to allow users to tailor flags to meet their own needs. New and legacy flag bits are described in more detail in the user guide. |
| Version | 4.0 |
| Dataset Type | COMPLETE |
| Measurement | SURFACE WINDS > OCEAN WINDS > OCEANS > Ocean Surface Wind Vectors |
| Processing Level | 2 |
| Coverage | North Bounding Coordinate: 90 degrees South Bounding Coordinate: -90 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 1999-Oct-27 to 2009-Nov-22 Granule Time Span: 1999-Oct-27 to 2009-Nov-22 |
| Resolution | Spatial Resolution: |
| Projection | Ellipsoid: WGS 84 |
| Swath Width | 1800.0 meters |
| Platform/Sensor | QUIKSCAT / Platform Name: QUIKSCAT (QUIKSCAT) Orbit Period: 100.93 minutes Inclination Angle: 98.6 degrees SEAWINDS SENSOR Name: SeaWinds Scatterometer (SEAWINDS) Swath Width: 1800.0 meters Description: Spacecraft angular distance from orbital plane relative to the Equator. |
| Project | Quick Scatterometer (QUIKSCAT) |
| Data Provider | Publisher: SeaPAC Creator: SeaPAC Release Place: PO.DAAC Release Date: 2018-Mar-29 |
| Keyword(s) | wind data, wind, ocean wind, wind speed, vector, vectors, ocean wind vector, ocean wind vectors, seawinds, quikscat, scatterometer, l2b, version 4.0, v4.0, level 2, level 2b, version 4, v4 |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
| Direct Access | |
| OPENDAP DATA | https://podaac-opendap.jpl.nasa.gov/opendap/allData/quikscat/L2B12/v4.0/ The OPeNDAP base directory location for the collection. |
| PO.DAAC DRIVE | https://podaac-tools.jpl.nasa.gov/drive/files/allData/quikscat/L2B12/v4.0 PO.DAAC Drive |
| Format (Compression) | NETCDF |
| Read Software | |
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| USER'S GUIDE | |
| GENERAL DOCUMENTATION | |
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| Citation | SeaPAC. 2018. QuikSCAT Level 2B Ocean Wind Vectors in 12.5km Slice Composites Version 4.0. Ver. 4.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/QSX12-L2B40
For more information see Data Citations and Acknowledgments.
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