EMIT L2B Methane Enhancement Data 60 m V001

Description

The Earth Surface Mineral Dust Source Investigation (EMIT) instrument measures surface mineralogy, targeting the Earth’s arid dust source regions. EMIT is installed on the International Space Station (ISS) and 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 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](https://earth.jpl.nasa.gov/emit/data/data-portal/coverage-and-forecasts/). 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 short-wave infrared bands. The EMIT Level 2B Greenhouse Gas (GHG) series of products can be used to identify and quantify point source emissions. The EMIT Level 2B Methane Enhancement Data (EMITL2BCH4ENH) Version 1 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. The initial release of the EMITL2BCH4ENH data product will only include granules where methane plume complexes have been identified. Each granule contains one Cloud Optimized GeoTIFF (COG) file at a spatial resolution of 60 meters (m): Methane Enhancement (EMIT_L2B_CH4ENH). The EMITL2BCH4ENH file contains methane enhancement data based primarily on [EMITL1BRAD](https://doi.org/10.5067/EMIT/EMITL1BRAD.001) radiance values. Each granule is approximately 75 kilometers (km) by 75 km, nominal at the equator, with some granules near 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.

Resources

Name Format Description Link
5 https://www.youtube.com%2Fplaylist%3Flist%3DPLO2yB4LGNlWrC5NdxeHMxyAxdwQhSypXe
5 https://github.com%2Fnasa%2FEMIT-Data-Resources
5 https://lpdaac.usgs.gov%2Fsearch%2F%3Fquery%3DEMIT%26content_types%3DE-Learning%26view%3Dcards%26sort%3Drelevance
5 https://github.com%2Femit-sds%2Femit-ghg
5 https://earth.jpl.nasa.gov%2Femit%2F
5 https://lpdaac.usgs.gov%2F
5 https://doi.org%2F10.5067%2FEMIT%2FEMITL2BCH4ENH.001
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DC2748097305-LPCLOUD
5 https://lpdaac.usgs.gov%2Fdocuments%2F1696%2FEMIT_GHG_ATBD_V1.pdf
5 https://lpdaac.usgs.gov%2Fdocuments%2F1695%2FEMIT_L2B_GHG_User_Guide_V1.pdf
5 https://www.earthdata.nasa.gov%2Fcenters%2Flp-daac
5 https://data.lpdaac.earthdatacloud.nasa.gov%2Flp-prod-public%2FEMITL2BCH4ENH.001%2FEMIT_L2B_CH4ENH_001_20230612T162103_2316311_006%2FEMIT_L2B_CH4ENH_001_20230612T162103_2316311_006.png
5 https://earth.jpl.nasa.gov/emit/
5 https://www.earthdata.nasa.gov/centers/lp-daac
5 EMITL2BCH4ENH.001 https://doi.org/10.5067/EMIT/EMITL2BCH4ENH.001
5 https://search.earthdata.nasa.gov/search?q=C2748097305-LPCLOUD
33 EMIT_GHG_ATBD_V1.pdf https://lpdaac.usgs.gov/documents/1696/EMIT_GHG_ATBD_V1.pdf
33 EMIT_L2B_GHG_User_Guide_V1.pdf https://lpdaac.usgs.gov/documents/1695/EMIT_L2B_GHG_User_Guide_V1.pdf
5 https://github.com/emit-sds/emit-ghg
34 EMIT_L2B_CH4ENH_001_20230612T162103_2316311_006.png https://data.lpdaac.earthdatacloud.nasa.gov/lp-prod-public/EMITL2BCH4ENH.001/EMIT_L2B_CH4ENH_001_20230612T162103_2316311_006/EMIT_L2B_CH4ENH_001_20230612T162103_2316311_006.png
5 https://www.youtube.com/playlist?list=PLO2yB4LGNlWrC5NdxeHMxyAxdwQhSypXe
5 https://github.com/nasa/EMIT-Data-Resources
5 https://lpdaac.usgs.gov/search/?query=EMIT&content_types=E-Learning&view=cards&sort=relevance
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2748097305-LPCLOUD.iso19115

Tags

  • earth-science-atmospheric-chemistry-atmosphere-carbon-and-hydrocarbon-compounds-methane
  • earth-science-air-quality-atmosphere-emissions

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