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Full catalog/TEMPO_O3PROF_L2
TEMPO_O3PROF_L2·vV04·dataset

Ozone amounts by altitude (TEMPO, beta)

TEMPO ozone profile V04 (BETA)
atmosphere NASA LARC_CLOUD Level 2 active netCDF-4
In plain English

What it measures. How ozone is distributed by altitude over North America, splitting the column into 24 layers from the surface upward, plus separate totals for the lower and upper atmosphere. This is a coarser-resolution, early-stage (beta) product.

How it's made. Generated by the TEMPO instrument in high orbit by combining several neighboring pixels and fitting ultraviolet light measurements with an estimation technique to reconstruct the ozone profile.

How & where you'd use it. Helps researchers study how ozone varies with height and over the course of a day; as beta data it's mainly for evaluation and research rather than operational decisions.

What's measured

ATMOSPHERE › ATMOSPHERIC CHEMISTRY › OXYGEN COMPOUNDS › ATMOSPHERIC OZONEATMOSPHERE › ATMOSPHERIC CHEMISTRY › OXYGEN COMPOUNDS › ATMOSPHERIC OZONE › OZONE PROFILESATMOSPHERE › ATMOSPHERIC CHEMISTRY › OXYGEN COMPOUNDS › ATMOSPHERIC OZONE › TOTAL OZONE

Coverage & cadence

  • Time span2023-08-02 → ongoing
  • Measured byIS-40e (TEMPO)
  • Processing levelLevel 2
  • FormatsnetCDF-4
  • 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

Ozone profile Level 2 (BETA) files provide ozone profile information at a coarser spatial resolution than the native TEMPO resolution by coadding 4 across-track pixels in the North-South direction, ~40 km^2 at the center of the Field of Regard (FOR), for individual granules. Each granule covers the entire North-South TEMPO FOR but only a portion of the East-West FOR. The files are provided in netCDF4 format, and contain information on ozone partial columns at 24 layers with the last layer 0-2 km above the surface, a priori ozone profile and a prior error, total, stratospheric, and tropospheric ozone columns, other retrieved auxiliary parameters, random-noise and total retrieval errors for all of the retrieved quantities, the retrieval averaging kernels for the ozone profile, and the random-noise retrieval error covariance matrix for ozone, and several retrieval quality flags. The retrieval is based on spectral fitting of TEMPO radiances in UV band using the iterative optimal estimation technique with a priori and measurement error constraints.

Get the data

tempo_o3prof_l2_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="TEMPO_O3PROF_L2",
    version="V04",
    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 LARC_CLOUD
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.