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Full catalog/TRPSCRSO2M3D
TRPSCRSO2M3D·v1·dataset

Sulfur dioxide pollution at all heights, monthly, 3D

TROPESS Chemical Reanalysis SO2 Monthly 3-dimensional Product V1 (TRPSCRSO2M3D) at GES DISC
atmosphere NASA GES_DISC Level 4 active
In plain English

What it measures. Monthly, three-dimensional maps of sulfur dioxide pollution, showing its concentration not just at the surface but at many heights through the atmosphere (27 pressure levels).

How it's made. Produced by a chemical reanalysis that merges data from several satellite sensors into a computer model rather than from a single instrument, covering the years 2005 to 2021.

How & where you'd use it. Helps researchers track sulfur dioxide from sources like volcanoes and burning fossil fuels, see how it's distributed vertically, and study its effects on air quality and climate.

What's measured

ATMOSPHERE › ATMOSPHERIC CHEMISTRY › SULFUR COMPOUNDS › SULFUR DIOXIDE

Coverage & cadence

  • Time span2005-01-01 → ongoing
  • Measured byREANALYSIS MODELS (NOT APPLICABLE)
  • 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

The TROPESS Chemical Reanalysis SO2 Monthly 3-dimensional Product contains vertical concentrations of sulfur dioxide. The data are part of the Tropospheric Chemical Reanalysis v2 (TCR-2) for the period 2005-2021. TCR-2 uses JPL's Multi-mOdel Multi-cOnstituent Chemical (MOMO-Chem) data assimilation framework that simultaneously optimizes both concentrations and emissions of multiple species from multiple satellite sensors. The data files are written in the netCDF version 4 file format, and each file contains a year of data at monthly resolution, and a spatial resolution of 1.125 x 1.125 degrees at 27 pressure levels between 1000 and 60 hPa. The principal investigator for the TCR-2 data is Miyazaki, Kazuyuki.

Get the data

trpscrso2m3d_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="TRPSCRSO2M3D",
    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.