SMAP L4 Global 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants V007
SMAP Level-4 (L4) surface and root zone soil moisture data are provided in three products:
* SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data (SPL4SMGP, DOI: 10.5067/EVKPQZ4AFC4D)
* SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update (SPL4SMAU, DOI: 10.5067/LWJ6TF5SZRG3)
* SMAP L4 Global 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants (SPL4SMLM, DOI: 10.5067/KN96XNPZM4EG).
For each product, SMAP L-band brightness temperature data from descending and ascending half-orbit satellite passes (approximately 6:00 a.m. and 6:00 p.m. local solar time, respectively) are assimilated into a land surface model that is gridded using an Earth-fixed, global cylindrical 9 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0) projection.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"026:00"
]
|
| contactPoint |
{
"fn": "NSIDC Services",
"@type": "vcard:Contact",
"hasEmail": "mailto:nsidc@nsidc.org"
}
|
| description | SMAP Level-4 (L4) surface and root zone soil moisture data are provided in three products: * SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data (SPL4SMGP, DOI: 10.5067/EVKPQZ4AFC4D) * SMAP L4 Global 3-hourly 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update (SPL4SMAU, DOI: 10.5067/LWJ6TF5SZRG3) * SMAP L4 Global 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants (SPL4SMLM, DOI: 10.5067/KN96XNPZM4EG). For each product, SMAP L-band brightness temperature data from descending and ascending half-orbit satellite passes (approximately 6:00 a.m. and 6:00 p.m. local solar time, respectively) are assimilated into a land surface model that is gridded using an Earth-fixed, global cylindrical 9 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0) projection. |
| distribution |
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"description": "Direct download via HTTPS protocol.",
"downloadURL": "https://n5eil01u.ecs.nsidc.org/SMAP/SPL4SMLM.007/"
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"title": "View documentation related to this dataset",
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"downloadURL": "https://doi.org/10.5067/KN96XNPZM4EG"
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{
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"title": "Download this dataset through Earthdata Search",
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"description": "NASA's newest search and order tool for subsetting, reprojecting, and reformatting data.",
"downloadURL": "https://search.earthdata.nasa.gov/search?q=SPL4SMLM+V007"
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"mediaType": "text/html",
"description": "Search and filter data files using a map-based interface",
"downloadURL": "https://nsidc.org/data/data-access-tool/SPL4SMLM/versions/7/"
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{
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"title": "Google Scholar search results",
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"description": "Search results for publications that cite this dataset by its DOI.",
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|
| identifier | C2537926833-NSIDC_ECS |
| issued | 2015-03-31 |
| keyword |
[
"earth-science",
"land-surface",
"soils",
"topography"
]
|
| landingPage | https://doi.org/10.5067/KN96XNPZM4EG |
| language |
[
"en-US"
]
|
| modified | 2025-07-17 |
| programCode |
[
"026:001"
]
|
| publisher |
{
"name": "NASA NSIDC DAAC",
"@type": "org:Organization"
}
|
| spatial | -180.0 -85.044 180.0 85.044 |
| temporal | 2015-03-31T00:00:00Z/2023-03-01T00:00:00Z |
| theme |
[
"geospatial"
]
|
| title | SMAP L4 Global 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants V007 |
