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Full catalog/TRPSYL2O3AIRSORS
TRPSYL2O3AIRSORS·v1·dataset

Ozone in the air, summary (AIRS reanalysis)

TROPESS AIRS-Aqua L2 Ozone for Reanalysis Stream, Summary Product V1 (TRPSYL2O3AIRSORS) at GES DISC
atmosphere NASA GES_DISC Level 2
In plain English

What it measures. The vertical distribution of ozone in the atmosphere, from the surface up to high altitudes, along with formal uncertainty estimates. This summary version condenses the fuller dataset.

How it's made. Derived from the AIRS instrument on NASA's Aqua satellite by NASA's TROPESS project, using an optimal-estimation method to reconstruct the atmosphere's ozone state.

How & where you'd use it. Built to feed atmospheric reanalysis efforts and to support studies of ozone, covering 2002 through early 2020.

What's measured

ATMOSPHERE › ATMOSPHERIC CHEMISTRY › OXYGEN COMPOUNDS › ATMOSPHERIC OZONE

Coverage & cadence

  • Time span2002-09-01 → 2020-03-31
  • Measured byAqua (AIRS)
  • Processing levelLevel 2
  • 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 AIRS-Aqua L2 Ozone for Reanalysis Stream, Summary Product contains the vertical distribution of the retrieved atmospheric state of ozone (O3), and formal uncertainties measured by the AIRS instrument on the EOS Aqua satellite. The reanalysis stream summary product is global for the time period from 2002-09-01 to 2020-03-31. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES). The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 13.5 km (AIRS nadir FOV), and are reported at 26 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.

Get the data

trpsyl2o3airsors_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="TRPSYL2O3AIRSORS",
    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.