Imaging · collection · 2026
NISAR Provisional Geocoded Pixel Offsets (Version 1)
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/nil2goff-p1
The NASA-ISRO Synthetic Aperture Radar (NISAR) Geocoded Pixel Offsets (GOFF) product is a Level 2 product derived from the Range Doppler Pixel Offsets (ROFF) product by geocoding the pixel offset layers and its associated data layers (i.e., SNR) on a geographical grid at 80 m posting.
Description
Geocoding uses the orbit of the reference Range Doppler Single Look Complex (RSLC) product and a Digital Elevation Model (DEM) to project the data onto a pre-defined Universal Transverse Mercator (UTM) or Polar stereographic projection system map grid.
The geocoding algorithm uses a bilinear interpolation for interpolating data layers with floating-point data types. The GOFF product contains a collection of data layers representing the pixel offset shifts between a pair of coarsely coregistered RSLC granules. The spacing, the window size, and the search radius used to generate the pixel offset layers in the range-Doppler geometry are organized by range bandwidth and area of observation.
Read the rest (1 more)
Pixel offset layers are distributed without performing any conventional post-processing operation, i.e., layers might contain offset outliers and are not low pass filtered to reduce noise in the data. The products in this collection are considered Provisional products and are intended to facilitate data exploration and process studies that do not require rigorous validation. These data are partially validated, and improvements are continuing; quality may not be optimal since validation and quality assurance are ongoing.
Links
Get the data
- ASF created NISAR Data User Guide nisar-docs.asf.alaska.edu/goff ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2854341702-ASF.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C2854341702-ASF ↗
Search and download data granules using NASA Earthdata Search interface.
download · from NASA CMR
- Resource nisar.jpl.nasa.gov ↗
download · project · from data nasa gov, NASA CMR
- search.asf.alaska.edu ↗
Search and download data granules using the ASF Data Search graphical search interface Vertex.
download · from NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/nisar-provisional-geocoded-pixel-offsets-version-1-bef… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/nil2goff-p1 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2854341702-ASF.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=d5b36a5f-4c98-44f3-b84b-2b04443a1… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2854341702-ASF.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Forest Science · Frozen Ground · Geomorphic Landforms/Processes · Glaciers Ice Sheets · L-band Synthetic Aperture Radar · NASA-ISRO SAR Mission · S-band Synthetic Aperture Radar · Tectonics
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Life Sciences · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 23 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2854341702-ASF | 7 d ago | JSON v1 |
| NASA Data Portal | d5b36a5f-4c98-44f3-b84b-2b04443a1d5a | 4 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:l-sar | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:s-sar | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/agriculture/forest-science | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/frozen-ground | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/cryosphere/glaciers-ice-sheets | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/geomorphic-landforms-processes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:nisar | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · data nasa gov | connector:data_nasa_gov@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 |
| updated_date | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |