Array · collection · 2026
NISAR Provisional Soil Moisture (Version 1)
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/nil3sme2-p1
NASA-ISRO Synthetic Aperture Radar (NISAR) backscatter observations will estimate a global high-resolution soil moisture product (200 m).
Description
This product will be provided on average twice every 12 days. The NISAR soil moisture product is expected to have a data latency of 72 hours.
The NISAR Level 2 backscatter product has a data latency of 48 hours. Soil moisture estimates will be provided over areas with dense vegetation (vegetation water content greater than 5 kg/m2) but will be flagged during retrieval. Areas with urban build-up, permanent snow and ice cover, and permanent inland water bodies will be flagged, and no soil moisture retrieval will be performed.
Read the rest (2 more)
No soil moisture retrieval will be performed over areas with excessive precipitation, frozen ground, or areas with snow on the ground. The NISAR soil moisture product will have an accuracy goal of 0.06 m3/m3 over unflagged areas with vegetation water content below 5 kg/m2. The 5+5 MHz product will be aggregated to 400 meters, but is still on the 200m EASE-Grid.
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/sme2 ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2854344945-ASF.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C2854344945-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-soil-moisture-version-1-9951e ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/nil3sme2-p1 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2854344945-ASF.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=fda3a673-36c1-4706-bc02-737082e1c… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2854344945-ASF.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- L-band Synthetic Aperture Radar · NASA-ISRO SAR Mission · Soil Moisture/Water Content
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Life Sciences · Ocean & Atmospheric Science · Physics
Provenance · 2 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2854344945-ASF | 8 d ago | JSON v1 |
| NASA Data Portal | fda3a673-36c1-4706-bc02-737082e1cbd5 | 5 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[measured_variable].gcmd:earth-science/agriculture/soils/soil-moisture-water-content | 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 |