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Full catalog/OMPS_NPP_LP_L2_O3_DAILY
OMPS_NPP_LP_L2_O3_DAILY·v2.6·dataset

Ozone by altitude, daily (OMPS, Suomi-NPP)

OMPS-NPP L2 LP Ozone (O3) Vertical Profile swath daily Center slit V2.6 (OMPS_NPP_LP_L2_O3_DAILY) at GES DISC
atmosphere NASA GES_DISC Level 2 active
In plain English

What it measures. Daily measurements of how ozone is distributed by altitude, from near the ground up to about 60 kilometers, profiling the stratosphere and lower mesosphere with roughly 1.8-kilometer vertical detail.

How it's made. Retrieved from the OMPS Limb-Profiler sensor aboard the Suomi-NPP satellite, which looks at the edge of the atmosphere from the daylight side of each orbit.

How & where you'd use it. Helps scientists monitor the ozone layer and how its vertical structure changes over time.

What's measured

ATMOSPHERE › ATMOSPHERIC CHEMISTRY › OXYGEN COMPOUNDS › ATMOSPHERIC OZONE

Coverage & cadence

  • Time span2012-02-07 → ongoing
  • Measured bySuomi-NPP (OMPS)
  • 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

Version 2.6 is the current version of this data product, and supersedes all previous versions. The OMPS-NPP L2 LP Ozone (O3) Vertical Profile swath daily Center slit collection contains ozone measured by the Ozone Mapping and Profiling Suite (OMPS) Limb-Profiler (LP) sensor on the Suomi-NPP satellite. The LP ozone product measures the vertical distribution of ozone in the stratosphere and lower mesosphere. The algorithm derives ozone profile values along with errors in the UV from 29.5 km and 52.5 km, and in the visible from cloud top to 37.5 km (when there are no clouds the lower limit is 12.5 km). See the README for full description of the product and updated retrieval algorithm. Each granule contains data from the daylight portion of each orbit measured for a full day. Spatial coverage is global (-90 to 90 degrees latitude), and there are about 14.5 orbits per day, the data from the center of the LP three slits are used to make a vertical profile. The profile is measured from the ground up to about 60 km with a vertical resolution of the retrieved profiles of approximately 1.8 km. The data are written using the Hierarchical Data Format Version 5 or HDF5.

Get the data

omps_npp_lp_l2_o3_daily_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="OMPS_NPP_LP_L2_O3_DAILY",
    version="2.6",
    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.