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Full catalog/TRPSDL2O3AIRSOMIFS
TRPSDL2O3AIRSOMIFS·v1·dataset

Ozone in the air, combined sensors (forward stream)

TROPESS AIRS-Aqua and OMI-Aura L2 Ozone for Forward Stream, Standard Product V1 (TRPSDL2O3AIRSOMIFS) at GES DISC
atmosphere NASA GES_DISC Level 2 active
In plain English

What it measures. The amount of ozone in the air at different heights, from the surface up into the high atmosphere, along with how confident the estimate is. It reports ozone at 26 vertical levels.

How it's made. Combines readings from the AIRS instrument on Aqua and the OMI instrument on Aura, blended together with an optimal-estimation method to retrieve the ozone profile, delivered as daily files.

How & where you'd use it. Helps researchers track air quality and the vertical structure of ozone, which matters both for pollution near the ground and for the protective ozone layer higher up. This is a 'forward stream' product covering 2021 onward.

What's measured

ATMOSPHERE › ATMOSPHERIC CHEMISTRY › OXYGEN COMPOUNDS › ATMOSPHERIC OZONE

Coverage & cadence

  • Time span2021-02-01 → ongoing
  • Measured byAqua (AIRS) · Aura (OMI)
  • Processing levelLevel 2
  • Spatial extent-180, -90, 180, 90
  • StatusACTIVE

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 and OMI-Aura L2 Ozone for Forward Stream, Standard Product contains the vertical distribution of the retrieved atmospheric state of ozone (O3), formal uncertainties, and diagnostic information measured by the AIRS instrument on the EOS Aqua satellite and the OMI instrument on the EOS Aura satellite. The forward stream standard product is global for the time period from 2021-02-01 to present. 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 km x 24 km (OMI 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

trpsdl2o3airsomifs_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="TRPSDL2O3AIRSOMIFS",
    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.