Earth Surface Mineral Dust Source Investigation- Methane Plume Complexes

NASA/EMIT/L2B/CH4PLM
Dataset Availability
2022-08-10T00:00:00Z–2024-10-26T17:21:33Z
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("NASA/EMIT/L2B/CH4PLM")
Cadence
1 Day
Tags
daily emit methane nasa

Description

The EMIT Project is part of the Earth Venture-Instrument (EV-I) Program directed by the Program Director of the NASA Earth Science Division (ESD). EMIT is comprised of a VSWIR Infrared Dyson imaging spectrometer adapted for installation on the International Space Station (ISS). EMIT measures radiance between 380 and 2500 nanometers, with an approximate 7 nm bandpass. Data are collected in a swath that is approximately 75 km wide at the equator, with an approximate ground sampling distance of 60 m. See the provider's NASA EMIT Overview for more details.

EMIT was a particularly useful tool for mapping out greenhouse gases, including methane, carbon dioxide, and water vapor. This is consistent with previous findings from airborne data, but global nature, revisit frequency and wide swath of EMIT provided an unprecedented opportunity to investigate greenhouse gas retrievals.

The EMIT Level 2B Estimated Methane Plume Complexes (EMITL2BCH4PLM) Version 1 data product provides estimated methane plume complexes in parts per million meter (ppm m) along with uncertainty data. The EMITL2BCH4PLM data product will only be generated where methane plume complexes have been identified.

Bands

Resolution
72000 meters

Bands

Name Units Description
methane_plume_complex ppm m

Estimated Methane plume complex.

Image Properties

Image Properties

Name Type Description
global_plume_identifier STRING

Global Plume Identification Number
Concentration_Uncertainty DOUBLE

Uncertainity in Concentration
DAAC_Scene_Names STRING_LIST

DAAC Scene Names
DAAC_Scene_Numbers STRING_LIST

DAAC Scene Numbers
DCID STRING

Data Collection Identifier
Latitude_of_max_concentration DOUBLE

Latitute with maximum concentration
Longitude_of_max_concentration DOUBLE

Longitude with maximum concentration
Max_Plume_Concentration DOUBLE

Maximum Plume Concentration
Orbit STRING

Unique orbit number
Plume_ID STRING

Unique Plume Identification number
Scene_FIDs STRING_LIST

Scene FIDs

Terms of Use

Terms of Use

NASA EMIT data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.

Citations

Citations:

  • Green, R., Thorpe, A., Brodrick, P., Chadwick, D., Elder, C., Villanueva-Weeks, C., Fahlen, J., Coleman, R., Jensen, D., Olsen-Duvall, W., Lundeen, S., Lopez, A., Thompson, D. (2023). EMIT L2B Estimated Methane Plume Complexes 60 m V001 [Data set]. NASA EOSDIS Land Processes Distributed Active Archive Center. Accessed 2024-03-06 from https://doi.org/10.5067/EMIT/EMITL2BCH4PLM.001

DOIs

Explore with Earth Engine

Code Editor (JavaScript)

var dataset = ee.ImageCollection('NASA/EMIT/L2B/CH4PLM');
var emitEnhancement = dataset.select('methane_plume_complex');
var emitEnhancementVis = {
  min: 0,
  max: 100.0,
  palette: ['d7191c', 'fdae61', 'ffffbf', 'abd9e9', '2c7bb6'],
};
Map.setCenter(53.99, 39.11, 8);
Map.addLayer(
    emitEnhancement, emitEnhancementVis,
    'Emit Enhancement');
Open in Code Editor
The EMIT Project is part of the Earth Venture-Instrument (EV-I) Program directed by the Program Director of the NASA Earth Science Division (ESD). EMIT is comprised of a VSWIR Infrared Dyson imaging spectrometer adapted for installation on the International Space Station (ISS). EMIT measures radiance between 380 and 2500 nanometers, …
NASA/EMIT/L2B/CH4PLM, daily,emit,methane,nasa
2022-08-10T00:00:00Z/2024-10-26T17:21:33Z
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