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Full catalog/OMUVBd
OMUVBd·v003·dataset

How much sunburn-causing UV reaches the ground, daily (OMI/Aura)

OMI/Aura Surface UVB Irradiance and Erythemal Dose Daily L3 Global Gridded 1.0 degree x 1.0 degree V3 (OMUVBd) at GES DISC
atmosphere NASA GES_DISC Level 3 active
In plain English

What it measures. How much sunburn-causing ultraviolet light reaches the ground each day, given both as a daily dose and as the peak rate around local noon, worldwide.

How it's made. Produced from the OMI instrument on NASA's Aura satellite, processed into a daily global map covering the sunlit part of the planet at 1-degree spacing.

How & where you'd use it. Supporting public health warnings about UV exposure and skin-cancer risk, and helping researchers study trends in surface ultraviolet over time.

What's measured

ATMOSPHERE › ATMOSPHERIC RADIATION › ULTRAVIOLET RADIATION

Coverage & cadence

  • Time span2004-10-01 → ongoing
  • Measured byAura (OMI)
  • Processing levelLevel 3
  • 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

This is Level-3 daily global gridded Aura-OMI Spectral Surface UVB Irradiance and Erythemal Dose product (OMUVBd). The OMUVBd product contains global erythemally weighted daily dose and erythemal dose rate at local solar noon at 1.0x1.0 deg grids. The OMUVBd files are available in the version 5 EOS Hierarchical Data Format (HDF-EOS5). Each file contains daily data from the day lit portion of the globe. The maximum file size for the OMUVBd data product is about 5 MBytes.

Get the data

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

results = earthaccess.search_data(
    short_name="OMUVBd",
    version="003",
    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.