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Full catalog/OMPS_NPP_LP_L2_AER_DAILY
OMPS_NPP_LP_L2_AER_DAILY·v2.5·dataset

Haze and dust by altitude, daily (OMPS, Suomi-NPP)

OMPS-NPP L2 LP Aerosol Extinction Vertical Profile swath daily 3slit V2.5 (OMPS_NPP_LP_L2_AER_DAILY) at GES DISC
atmosphere NASA GES_DISC Level 2 active
In plain English

What it measures. Daily profiles of how much haze and dust are present at different altitudes high in the atmosphere, measured at several colors of light. It captures the abundance of fine particles in the stratosphere.

How it's made. Derived from sunlight scattered along the edge of the atmosphere, viewed sideways by the OMPS Limb-Profiler instrument on the Suomi-NPP satellite.

How & where you'd use it. Helps scientists track stratospheric haze, including particles lofted by volcanic eruptions and large wildfires, and how it evolves and affects climate.

What's measured

ATMOSPHERE › AEROSOLS › AEROSOL EXTINCTION

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

The OMPS-NPP L2 LP Aerosol Extinction Vertical Profile swath daily 3slit (AER) product contains the retrieved aerosol extinction coefficients measured by the Ozone Mapping and Profiling Suite (OMPS) Limb-Profiler (LP) sensor on the Suomi-NPP satellite. The AER product measures stratospheric aerosol abundance and evolution at 6 wavelengths (510, 600, 675, 745, 869 and 997 nm) to complement the OMPS LP measurements of stratospheric and mesospheric profile ozone. This product replaces the previous single wavelength 675 nm (AER675) product. 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 each measuring three limb profiles spaced approximately 250 km in the cross-track direction. The profiles are measured from the ground up to about 80 km with a vertical resolution of the retrieved profiles of approximately 1.8 km. The files are written using the Hierarchical Data Format Version 5 or HDF5.

Get the data

omps_npp_lp_l2_aer_daily_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="OMPS_NPP_LP_L2_AER_DAILY",
    version="2.5",
    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.