SASS Twice-Daily SIR-Enhanced EASE-Grid 2.0 Radar Backscatter, Version 1
Data set id:
NSIDC-0787
DOI: 10.5067/46IY83E4HHJU
This is the most recent version of these data.
Version Summary
Version Summary
Initial release
Overview
This product contains twice-daily radar backscatter data collected at 14.6 GHz for horizontal-horizontal and vertical-vertical receive radar channels from the SeaSat-A satellite scatterometer (SASS) sensor. Data are available on the Northern Hemisphere, Southern Hemisphere, and Temperate EASE-Grid 2.0 projections as either 25 km or 3.125 km resolution grids. The data set uses the drop-in-the bucket gridding (GRD) and Scatterometer Image Reconstruction (SIR) algorithms to process the individual swath-based data into twice-daily morning and evening images. The GRD algorithm produces SAR images (high-resolution) on a 25 km grid and the SIR algorithm produces slice and footprint images (both lower-resolution) on a 3.125 km grid, provided at 8-,16-, 32-day imaging intervals. The data coverage is global from 7 July 1978 through 10 Oct 1978.
Parameter(s):
SIGMA NAUGHT
Platform(s):
SEASAT 1
Sensor(s):
SCATTEROMETERS
Data Format(s):
netCDF-4
Temporal Coverage:
7 July 1978 to 10 October 1978
Temporal Resolution:
- Varies
Spatial Resolution:
- 3.125 to 25
- 3.125 to 25
Spatial Reference System(s):
WGS 84 / NSIDC EASE-Grid 2.0 North
EPSG:6931
WGS 84 / NSIDC EASE-Grid 2.0 South
EPSG:6932
WGS 84 / NSIDC EASE-Grid 2.0 Global
EPSG:6933
Spatial Coverage:
N:
90
S:
-90
E:
180
W:
-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.