Imaging · collection · 2025
EMIT L2B Methane Enhancement Data 60 m V002
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/emit/emitl2bch4enh.002
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. EMIT uses imaging spectroscopy to take measurements of sunlit regions of interest between 52° N latitude and 52° S latitude.
An interactive map showing the 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. In addition to its primary objective described above, EMIT has demonstrated the capacity to characterize methane (CH4) and carbon dioxide (CO2) point-source emissions by measuring gas absorption features in the shortwave infrared bands.
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The EMIT Level 2B Methane Enhancement Data (EMITL2BCH4ENH) Version 2 data product is a total vertical column enhancement estimate of methane in parts per million meter (ppm m) based on an adaptive matched filter approach. EMITL2BCH4ENH provides per-pixel methane enhancement data used to identify methane plume complexes, per-pixel methane uncertainty due to sensor noise, and per-pixel methane sensitivity that can be used to remove bias from the enhancement data.
The EMITL2BCH4ENH Version 2 data product includes methane enhancement granules for all captured scenes, regardless of methane plume complex identification. Each granule contains three Cloud Optimized GeoTIFF (COG) files at a spatial resolution of 60 meters (m): Methane Enhancement (EMIT_L2B_CH4ENH), Methane Uncertainty (EMIT_L2B_CH4UNCERT), and Methane Sensitivity (EMIT_L2B_CH4SENS). The EMITL2BCH4ENH COG files contain methane enhancement data based primarily on EMITL1BRAD radiance values.
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, through January 6, 2023, a power issue outside of EMIT caused a pause in operations. Due to this shutdown, no data were acquired during that timeframe.
Links
Get the data
- Resource doi.org/10.5067/emit/emitl2bch4enh.002 ↗
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/nasa/EMIT-Data-Resources ↗
The LP DAAC GitHub repository provides guides, Python notebooks, and scripts to help users access and work with data from the EMIT mission.
documentation · download · from NASA CMR, data nasa gov
- Resource github.com/emit-sds/emit-sds-tgp/blob/main/docs/EMIT_L2B_TRACE_GAS_ATBD.md ↗
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-ghg ↗
EMIT Level 2B greenhouse gas science data system repository.
documentation · download · from NASA CMR, data nasa gov
- Resource github.com/emit-sds/emit-sds-tgp/blob/main/docs/EMIT_L2B_TRACE_GAS_User_G… ↗
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 lpdaac.usgs.gov/search/?query=EMIT&content_types=E-Learning&view=cards&sort=re… ↗
EMIT data E-Learning resources provided by NASA's LP DAAC.
documentation · download · from NASA CMR, data nasa gov
- Resource youtube.com/playlist?list=PLO2yB4LGNlWrC5NdxeHMxyAxdwQhSypXe ↗
Watch the EMIT Data Tutorial Series Workshops to learn how to discover, access, and work with EMIT datasets.
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C3242680113-LPCLOUD.iso19115 ↗
download · from data nasa gov
- 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
- search.earthdata.nasa.gov /search/granules?p=C3242680113-LPCLOUD ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- PNG data.lpdaac.earthdatacloud.nasa.gov/lp-prod-public/EMITL2BCH4ENH.002/EMIT_L2B_CH4ENH_002_20250409T… ↗
download · preview image · from data nasa gov, NASA CMR
- Resource earth.jpl.nasa.gov/emit ↗
The EMIT website provides detailed information on the mission, instrument, products, etc.
download · project · from data nasa gov, NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/emit-l2b-methane-enhancement-data-60-m-v002 ↗
landing page · from data nasa gov
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=6f2faec1-58c2-4fc7-bf0d-ee5376744… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C3242680113-LPCLOUD.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C3242680113-LPCLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Earth Surface Mineral Dust Source Investigation (EMIT) Imaging Spectrometer · Emissions · International Space Station · Methane
- From keywords
- Astronomy & Astrophysics · Chemistry · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Imaging 75%
Provenance · 2 source records, 20 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C3242680113-LPCLOUD | 8 d ago | JSON v1 |
| NASA Data Portal | 6f2faec1-58c2-4fc7-bf0d-ee5376744246 | 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:chemistry | 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/atmosphere/air-quality/emissions | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-chemistry/carbon-and-hydrocarbon-compounds/methane | 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: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 |