RapidScat Twice-Daily SIR-Enhanced EASE-Grid 2.0 Radar Backscatter, Version 1
Data set id:
NSIDC-0809
DOI: 10.5067/MTQUFEXMZ3EE
This is the most recent version of these data.
Version Summary
Version Summary
Initial release
Overview
The RapidScat product (NSIDC-0809) provides Ku-band radar backscatter measurements of Sigma Nought (σ⁰, Sigma0) collected by RapidScat’s SeaWinds scatterometer flown aboard the International Space Station between October 2014 and August 2016. It began collecting σ⁰ measurements in October 2014. RapidScat was initially designed to provide σ⁰ measurements of near-surface ocean vector winds, but it also collected σ⁰ measurements over land and ice.
NSIDC-0809 includes Level 1 gridded radar backscatter data collected at 13.4 GHz for two radar channels (horizontal transmit-horizontal receive [HH] and vertical transmit-vertical receive [VV]) over two antenna footprints, termed ‘foot’ and ‘slice’. Twice-daily radar backscatter data includes both conventionally gridded (GRD) and enhanced-resolution (SIR) images gridded to EASE-Grid 2.0 azimuthal and cylindrical projections (Brodzik et al., 2012; Brodzik et al., 2014) at two grid spacings (25 km and 3.125 km).
Parameter(s):
SIGMA NAUGHT
Platform(s):
ISS
Sensor(s):
SEAWINDS
Data Format(s):
netCDF-4
Temporal Coverage:
- 3 October 2014 to 19 August 2016
Temporal Resolution:
- 1 day to 4 days
Spatial Resolution:
- 3.125 to 25
- 3.125 to 25
Spatial Reference System(s):
- WGS 84 / NSIDC EASE-Grid 2.0 GlobalEPSG:6933
Spatial Coverage:
- Northern latitude67.1Southern latitude-67.1Eastern longitude180Western longitude-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
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