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Full catalog/ida-ndwi
ida-ndwi·dataset

Hurricane Ida Surface Water, Louisiana

NDWI for Pre and Post-Hurricane Ida from PlanetScope
atmosphere NASA VEDA COG
In plain English

What it measures. Where water sits on the surface across southern Louisiana before and after Hurricane Ida, highlighting wet and flooded ground.

How it's made. Made from PlanetScope commercial satellite imagery, using a water-detection index.

How & where you'd use it. Helps responders see how the storm changed flooding and standing water across the region.

What's measured

idandwi

Coverage & cadence

  • Time span2021-08-23 → 2021-09-09
  • Spatial extent-90.864, 29.016, -90.045, 29.663
  • 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

Normalized Difference Water Index before and after Hurricane Ida in Southern Louisiana.

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("ida-ndwi")
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).