Array · collection · 2026
ERS SIR-Enhanced EASE-Grid 2.0 Radar Backscatter V001
Listed in NASA Earthdata CMR
Description
The ERS SIR-Enhanced product (NSIDC-0808) provides normalized radar cross section (σ⁰, Sigma0) or radar backscatter data derived from the European Space Agency (ESA) Earth Remote Sensing satellite series (ERS-1 and ERS-2) Active Microwave Instrument (AMI) in scatterometer-mode (ESCAT) during satellite overpasses between January 1992 and January 2001. The ESCAT instrument is a C-band (5.3 GHz) radar that collects σ⁰ at a vertical transmit–vertical receive (VV) polarization.
NSIDC-0808 includes both conventionally gridded (GRD) and enhanced-resolution (SIR) backscatter 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 6.25 km). The data set provides near-global coverage and supports studies of land, ice, and cryospheric surface processes sensitive to σ⁰ , including surface freeze/thaw state, snow and ice structure, and moisture variability.
Links
Get the data
- earthaccess.readthedocs.io /en/stable ↗
A Python library to search and access NASA Earth science data with just a few lines of code
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C4035802648-NSIDC_CPRD ↗
Search and order NASA Earth Science data using spatial and temporal filters. Reformatting, reprojecting, and subsetting options are available for some data sets.
download · from NASA CMR
- nsidc.org /data/data-access-tool/NSIDC-0808/versions/1 ↗
Search data by spatial and/or temporal ranges or file name. Choose from various download options, including a Python script.
download · from NASA CMR
- cmr.earthdata.nasa.gov /virtual-directory/collections/C4035802648-NSIDC_CPRD ↗
Quickly download a few files using a web browser, or access data through a command-line utility such as WGET.
download · from NASA CMR
Where it is published
- DOI doi.org/10.5067/cfno702zhfpa ↗
Provides access to data, documentation, tools, citation information, support, and other resources.
landing page · documentation · DOI / persistent id · from NASA CMR
Documentation and papers
- nsidc.org /sites/default/files/documents/user-guide/nsidc-0808-v001-userg… ↗
ERS SIR-Enhanced EASE-Grid 2.0 Radar Backscatter, Version 1 User Guide
documentation · from NASA CMR
- nsidc.org /sites/default/files/documents/technical-reference/escat_atbd_f… ↗
ERS SIR-Enhanced EASE-Grid 2.0 Radar Backscatter, Version 1 ATBD
documentation · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C4035802648-NSIDC_CPRD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C4035802648-NSIDC_CPRD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Active Microwave Instrument · European Remote Sensing Satellite-1 · European Remote Sensing Satellite-2 · Sigma Naught
- Inferred from text
- Image 65% · Satellite remote sensing 65%
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C4035802648-NSIDC_CPRD | 8 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:ami | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/radar/sigma-naught | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[modality].local:modality:remote-sensing | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[platform].gcmd_platform:ers-1 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:ers-2 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |