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Full catalog/OMSO2PCA-COG
OMSO2PCA-COG·dataset

Daily Sulfur Dioxide Air Pollution Maps

OMI/Aura Sulfur Dioxide (SO2) Total Column L3 1 day Best Pixel in 0.25 degree x 0.25 degree V3 as Cloud-Optimized GeoTIFFs (COGs)
atmosphere NASA VEDA COG
In plain English

What it measures. Maps the total amount of sulfur dioxide (SO₂) in the atmosphere each day, a pollutant from volcanoes, power plants, and industry, using the clearest reading per location.

How it's made. Built from the OMI instrument on NASA's Aura satellite, packaged as web-friendly cloud-optimized image files.

How & where you'd use it. Helps monitor volcanic eruptions and industrial pollution that affect air quality.

What's measured

OMSO2PCACOG

Coverage & cadence

  • Time span2005-01-01 → 2021-12-31
  • Spatial extent-180, -90, 180, 90
  • FormatsCOG

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

OMI/Aura Sulfur Dioxide (SO2) Total Column L3 1 day Best Pixel in 0.25 degree x 0.25 degree V3 as Cloud-Optimized GeoTIFFs (COGs)

Get the data

veda_access.py
# NASA VEDA — open STAC API, anonymous (cloud-optimized GeoTIFFs)
from pystac_client import Client

cat = Client.open("https://openveda.cloud/api/stac")
col = cat.get_collection("OMSO2PCA-COG")
items = list(col.get_items())          # browse the analysis-ready COGs
# open an asset with rioxarray:
# import rioxarray; da = rioxarray.open_rasterio(items[0].assets["cog_default"].href)
NASA VEDA is an open STAC catalog — browse and stream the cloud-optimized GeoTIFFs anonymously (no login).