Leaf cover and light absorption, 8-day combined sensors
What it measures. It reports leaf area index (how much leaf surface covers the ground) and FPAR (the fraction of sunlight green leaves absorb), at 500-meter detail as an 8-day best-view composite. Using two satellites means more frequent clear observations.
How it's made. Made by ESA Copernicus by merging observations from NASA's MODIS instruments on both Terra and Aqua, selecting the best pixels per 8-day window, as a Level-4 product.
How & where you'd use it. Feeds vegetation, crop, and climate models, and helps measure canopy density, plant health, and how much light ecosystems use to grow.
What's measured
Coverage & cadence
- Time span2002-07-04 → ongoing
- Spatial extent-180, -90, 180, 90
What you can do with it
- Map vegetation, forests and biomass
- Monitor ecosystem productivity and carbon
- Support habitat and biodiversity studies
Official description
The MODIS Terra and Aqua MCD15A2H Version 6.1 product provides an 8-day composite of Leaf Area Index (LAI) and Fraction of Photosynthetically Active Radiation (FPAR) at 500 m spatial resolution. The dataset is generated by selecting the best available pixel from all acquisitions from both MODIS sensors onboard the Terra and Aqua satellites within the 8-day compositing period. LAI represents the one-sided green leaf area per unit ground area in broadleaf canopies and half the total needle surface area per unit ground area in coniferous canopies. FPAR describes the fraction of incoming photosynthetically active radiation (400-700 nm) absorbed by the green vegetation canopy.
Get the data
# ESA Copernicus Data Space — open STAC API (free account)
from pystac_client import Client
cat = Client.open("https://stac.dataspace.copernicus.eu/v1")
search = cat.search(
collections=["modis-terraaqua-mcd15a2h"], # add _cog or _nc for a format variant
bbox=(-10, 35, 30, 60), # your area (W,S,E,N)
datetime="2024-01-01/2024-12-31",
)
items = list(search.items()) # then read assets with rioxarray / xarray Browsing the Copernicus STAC is open; downloading bytes needs a free Copernicus Data Space account.
Official links
- Open data source Copernicus STAC