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Full catalog/houston-aod-diff
houston-aod-diff·dataset

Houston Air-Pollution Change, 2000s vs 2010s

Houston AOD: Difference Between 2000-2009 & 2010-2019
land NASA VEDA COG
In plain English

What it measures. How much hazy airborne pollution over the Houston metro area changed between the 2000-2009 decade and the 2010-2019 decade.

How it's made. Made from NASA's MODIS satellite measurements of airborne particles, comparing two ten-year averages.

How & where you'd use it. Helps show whether air quality in Houston has improved or worsened over twenty years.

What's measured

houstonaoddiff

Coverage & cadence

  • Time span2000-01-01 → 2019-01-01
  • Spatial extent-97.009, 27.993, -93.991, 31.017
  • FormatsCOG

What you can do with it

  • Track deforestation, fire scars and land-cover change
  • Monitor crop and vegetation health (NDVI/EVI)
  • Map how built-up vs. green an area is over time
Official description

MODIS-calculated Aerosol Optical Depth (AOD) difference over the Houston metro area, differenced over a time period from 2000 to 2019.

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("houston-aod-diff")
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).