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Full catalog/CMS_HR_MNA_CH4_FLUX
CMS_HR_MNA_CH4_FLUX·v1·dataset

Where methane comes from in North America (2010-2015)

High-resolution mean North American methane fluxes for 2010-2015 optimized with GOSAT satellite data V1 (CMS_HR_MNA_CH4_FLUX)
atmosphere NASA GES_DISC Level 4
In plain English

What it measures. Estimated maps of where methane, a potent greenhouse gas, is released across North America between 2010 and 2015, at finer-than-usual spatial detail.

How it's made. Produced by feeding satellite methane observations from Japan's GOSAT into an atmospheric-chemistry computer model that works backward to pinpoint likely emission sources.

How & where you'd use it. Helps identify and quantify methane sources for carbon-monitoring, climate research, and informing emissions policy and management decisions.

What's measured

ATMOSPHERE › ATMOSPHERIC CHEMISTRY › CARBON AND HYDROCARBON COMPOUNDS › METHANE

Coverage & cadence

  • Time span2010-01-01 → 2015-12-31
  • Measured byGOSAT (TANSO-FTS) · GEOS-Chem (NOT APPLICABLE)
  • Processing levelLevel 4
  • Spatial extent-140, 10, -40, 70
  • StatusCOMPLETE

What you can do with it

  • Map air pollutants — NO₂, aerosols, ozone
  • Track greenhouse gases and Earth's energy budget
  • Feed weather and air-quality analysis
Official description

This data set contains estimates of methane emission in North America based on an inversion of the GEOS-Chem chemical transport model constrained by Greenhouse Gases Observing SATellite (GOSAT) observations. The NASA Carbon Monitoring System (CMS) is designed to make significant contributions in characterizing, quantifying, understanding, and predicting the evolution of global carbon sources and sinks through improved monitoring of carbon stocks and fluxes. The System will use the full range of NASA satellite observations and modeling/analysis capabilities to establish the accuracy, quantitative uncertainties, and utility of products for supporting national and international policy, regulatory, and management activities. CMS will maintain a global emphasis while providing finer scale regional information, utilizing space-based and surface-based data and will rapidly initiate generation and distribution of products both for user evaluation and to inform near-term policy development and planning.

Get the data

cms_hr_mna_ch4_flux_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="CMS_HR_MNA_CH4_FLUX",
    version="1",
    bounding_box=(-122.5, 37.2, -121.8, 37.9),  # your area (W,S,E,N)
    temporal=("2024-01-01", "2024-12-31"),       # your dates
)
files = earthaccess.open(results)   # stream straight from GES_DISC
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.