Array · collection · 2025
SMAP L4 Global Daily 9 km EASE-Grid Carbon Net Ecosystem Exchange V008
Listed in NASA Earthdata CMR
Description
The Level-4 (L4) carbon product (SPL4CMDL) provides global gridded daily estimates of net ecosystem carbon (CO2) exchange derived using a satellite data based terrestrial carbon flux model informed by the following: Soil Moisture Active Passive (SMAP) L-band microwave observations, land cover and vegetation inputs from the Moderate Resolution Imaging Spectroradiometer (MODIS), Visible Infrared Imaging Radiometer Suite (VIIRS), and the Goddard Earth Observing System Model, Version 5 (GEOS-5) land model assimilation system.
Parameters are computed using an Earth-fixed, global cylindrical 9 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0) projection.
Links
Get the data
- nsidc.org /data/data-access-tool/SPL4CMDL/versions/8 ↗
Search data by spatial and/or temporal ranges or file name. Choose from various download options, including a Python script.
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C3480440454-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
- appeears.earthdatacloud.nasa.gov ↗
Extract point and area time series from geospatial data via spatial, temporal, and/or parameter subsetting.
download · from NASA CMR
- 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
- cmr.earthdata.nasa.gov /virtual-directory/collections/C3480440454-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/u7sn8jdzl0uc ↗
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/technical-reference/nasa_smap_l4… ↗
Validation Assessment for the Soil Moisture Active Passive (SMAP) Level 4 Carbon (L4_C) Data Product Version 8
documentation · from NASA CMR
- nsidc.org /sites/default/files/documents/user-guide/spl4cmdl-v008-usergui… ↗
SMAP L4 Global Daily 9 km EASE-Grid Carbon Net Ecosystem Exchange, Version 8 User Guide
documentation · from NASA CMR
- worldview.earthdata.nasa.gov /?v=-203.53279034494884%2C2.987241956863528%2C1.560533905732342… ↗
Interactively browse and download global satellite imagery within hours of acquisition.
preview image · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3480440454-NSIDC_CPRD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3480440454-NSIDC_CPRD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Earth Observing System, Aqua · Earth Observing System, Terra (AM-1) · Goddard EOS Data Assimilation System-5 · Gross Primary Production (Gpp) · Heterotrophic Respiration (Rh) · Moderate-Resolution Imaging Spectroradiometer · Net Ecosystem Co2 Exchange (Nee) · NOT APPLICABLE · SMAP L-Band Radiometer · SMAP Level 4 Carbon Flux Model · Soil Moisture Active and Passive Observatory · Soil Organic Carbon (Soc) · Suomi-NPP · Visible-Infrared Imager-Radiometer Suite
- Inferred from text
- Climate change science 73% · Imaging 75%
Provenance · 1 source records, 24 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3480440454-NSIDC_CPRD | 8 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3702 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (73%) |
| concepts[instrument].gcmd_instrument:modis | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:not-applicable | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:smap-l-band-radiometer | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:viirs | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/soils/carbon/net-ecosystem-co2-exchange-nee | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/soils/carbon/soil-organic-carbon-soc | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/soils/soil-productivity/gross-primary-production-gpp | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/soils/soil-respiration/heterotrophic-respiration-rh | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:imaging | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[platform].gcmd_platform:aqua | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:geos-5 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:l4-c | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:smap | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:suomi-npp | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:terra | 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 |