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Full catalog/ACOSMonthlyGriddedXCO2
ACOSMonthlyGriddedXCO2·v3·dataset

Carbon dioxide in the air, monthly gridded (ACOS)

Monthly Gridded Level 4 bias-corrected XCO2 and other select fields aggregated from ACOS as Level 4 monthly files V3 (ACOSMonthlyGriddedXCO2)
atmosphere NASA GES_DISC Level 4
In plain English

What it measures. The average amount of carbon dioxide in a column of air, mapped month by month onto an even grid. It tracks the greenhouse gas most responsible for climate change.

How it's made. Built from the Japanese GOSAT satellite's CO2 readings, which are bias-corrected and then smoothly interpolated to fill in a continuous gridded map.

How & where you'd use it. Helpful for following how CO2 builds up and shifts around the planet over time, and for comparing against climate models and emissions estimates.

What's measured

ATMOSPHERE › ATMOSPHERIC CHEMISTRY › CARBON AND HYDROCARBON COMPOUNDS › ATMOSPHERIC CARBON DIOXIDE

Coverage & cadence

  • Time span2014-09-07 → 2020-06-28
  • Measured byGOSAT (TANSO-FTS)
  • Processing levelLevel 4
  • Spatial extent-180, -90, 180, 90
  • 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

Gridded carbon dioxide mole fraction (XCO2) and other select variables created by applying local kriging (also known as optimal interpolation) to daily aggregates of Greenhouse Gases Observing Satellite (GOSAT) bias corrected data. This is the latest version of this collection.

Get the data

acosmonthlygriddedxco2_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="ACOSMonthlyGriddedXCO2",
    version="3",
    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.