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Full catalog/hls-ndvi-difference
hls-ndvi-difference·dataset

Hurricane Ian Vegetation-Loss Map, Florida

HLS-derived NDVI difference for Assessing Impacts from Hurricane Iann
biosphere NASA VEDA COG
In plain English

What it measures. A before-and-after comparison of plant greenness between September 5 and September 30, 2022, revealing vegetation stripped or damaged by Hurricane Ian.

How it's made. Made from Harmonized Landsat and Sentinel-2 satellite imagery, comparing a vegetation greenness index before and after the storm.

How & where you'd use it. Helps responders gauge storm damage to crops, forests, and natural areas.

What's measured

hlsndvidifference

Coverage & cadence

  • Time span2022-09-30 → 2022-09-30
  • Spatial extent-82.376, 26.312, -81.904, 27.036
  • FormatsCOG

What you can do with it

  • Map vegetation, forests and biomass
  • Monitor ecosystem productivity and carbon
  • Support habitat and biodiversity studies
Official description

Difference in NDVI calculated from Harmonized Landsat and Sentinel-2 Data for September 5th and September 30th, 2022

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("hls-ndvi-difference")
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).