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Full catalog/ercot-houston-nightlights-freeze
ercot-houston-nightlights-freeze·dataset

Houston Night Lights Before and After the 2021 Deep Freeze

Black Marble Night Lights (Houston, TX 2021 Deep Freeze)
land NASA VEDA COG
In plain English

What it measures. Satellite night-light images of Houston, Texas, before (February 10, 2021) and after (February 16, 2021) the deep freeze that knocked out much of the state's power grid, showing where the lights went dark.

How it's made. Made from NASA's Black Marble night-time lights, which use the VIIRS satellite sensor to map artificial light at night.

How & where you'd use it. Helps reveal the scale and location of power outages during the Texas winter storm for disaster response and recovery.

What's measured

ercothoustonnightlightsfreeze

Coverage & cadence

  • Time span2021-02-10 → 2021-02-16
  • Spatial extent-96.088, 29.204, -94.559, 30.326
  • 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

Black Marble Night Lights for Houston, Texas during the Deep Freeze Event for both February 10, 2021 (before) and February 16, 2021 (after) that affected ERCOT's power grid.

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("ercot-houston-nightlights-freeze")
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).