Imaging · collection · 2026
EMIT L2B Fractional Cover and Uncertainty 60 m V001
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/emit/emitl2bfrcov.001
The Earth Surface Mineral Dust Source Investigation (EMIT) instrument measures surface mineralogy, targeting the Earth’s arid dust source regions.
Description
EMIT is installed on the International Space Station (ISS). EMIT uses imaging spectroscopy to take measurements of the sunlit regions of interest between ~52° N latitude and ~52° S latitude.
An interactive map showing the locations of regions being investigated, current and forecasted data coverage, and additional data resources can be found on the VSWIR Imaging Spectroscopy Interface for Open Science (VISIONS) EMIT Open Data Portal. The EMIT Level 2B Fractional Cover and Uncertainty (EMITL2BFRCOV) Version 1 data product provides a series of fractional cover estimates, associated uncertainty metrics, and one quality control (QC) flag mask variable.
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The fractional cover estimates are derived from the EMIT L2A Estimated Surface Reflectance and Uncertainty and Masks (EMITL2ARFL) data product, while the QC flag mask variable is derived from EMITL2ARFL, EMIT L2A Mask (EMITL2AMASK), and non-EMIT landcover and water body inputs. Scenes/granules where cloud cover is greater than 80 percent have been excluded from this collection.
For more details about inputs used for this data product, see Sections 4.3 and 4.5 of the Algorithm Technical Basis Document (ATBD). Each EMITL2BFRCOV granule consists of seven Cloud Optimized GeoTIFF (COG) files at 60 meter (m) spatial resolution: Photosynthetic Vegetation Fractional Cover (EMIT_L2B_FRCOVPV) and Uncertainty (EMIT_L2B_FRCOVPVUNC), Non-photosynthetic Vegetation Fractional Cover (EMIT_L2B_FRCOVNPV) and Uncertainty (EMIT_L2B_FRCOVNPVUNC), Bare Soil Fractional Cover (EMIT_L2B_FRCOVBARE) and Uncertainty (EMIT_L2B_FRCOVBAREUNC), and QC Flags (EMIT_L2B_FRCOVQC).
A browse image is also available. Each granule is approximately 75 kilometers (km) by 75 km, nominal at the equator with some granules at the end of an orbit segment reaching 150 km in length. Known Issues • Data acquisition gap: From September 13, 2022, to January 6, 2023, a power issue resulted in a shutdown of the EMIT sensor.
No data were acquired during that time frame.
Links
Get the data
- Resource doi.org/10.5067/emit/emitl2bfrcov.001 ↗
The LP DAAC product page provides information on Science Data Set layers and links for user guides, ATBDs, data access, tools, customer support, etc.
landing page · download · DOI / persistent id · from NASA CMR, data nasa gov
- Resource github.com/emit-sds/emit-sds-frcov/blob/main/docs/EMIT_L2B_Fractional_Cov… ↗
The Algorithm Theoretical Basis Document (ATBD) describes the physical and mathematical algorithms for the product.
documentation · download · from NASA CMR, data nasa gov
- Resource github.com/emit-sds/emit-sds-frcov/blob/main/docs/EMIT_L2B_Fractional_Cov… ↗
The technical information in the User's Guide enables users to interpret and use the data products.
documentation · download · from NASA CMR, data nasa gov
- Resource github.com/emit-sds/emit-sds-frcov ↗
EMIT Fractional Cover science data system repository.
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3911089796-LPCLOUD.iso19115 ↗
download · from data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C3911089796-LPCLOUD ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- Resource earthdata.nasa.gov/centers/lp-daac ↗
The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products.
download · project · from data nasa gov, NASA CMR
- PNG data.lpdaac.earthdatacloud.nasa.gov/lp-prod-public/EMITL2BFRCOV.001/EMIT_L2B_FRCOV_001_20230326T09… ↗
download · preview image · from data nasa gov, NASA CMR
- Resource earth.jpl.nasa.gov/emit ↗
The EMIT website provides detailed information on the EMIT mission, instrument, science, applications, and data.
download · project · from data nasa gov, NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/emit-l2b-fractional-cover-and-uncertainty-60-m-v001 ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3911089796-LPCLOUD.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=7dcca8b0-bccd-4ef8-96d3-ae070cd55… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3911089796-LPCLOUD.html ↗
catalogue entry · from NASA CMR
Topics
Provenance · 2 source records, 19 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3911089796-LPCLOUD | 10 d ago | JSON v1 |
| NASA Data Portal | 7dcca8b0-bccd-4ef8-96d3-ae070cd55d2a | 7 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: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:emit-imaging-spectrometer | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/land-use-land-cover | 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 (75%) |
| concepts[modality].local:modality:imaging | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[platform].gcmd_platform:iss | 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 |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| 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 |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |