Detailed lake water-quality maps, 2019-2024 (Copernicus)
What it measures. Tracks the quality of water in many medium and large lakes, such as signs of algae and murkiness, refreshed every ten days at fine detail. This version covers 2019 to 2024 across Europe and Africa.
How it's made. Produced by ESA Copernicus from the MSI camera on Sentinel-2 satellites at 100-meter resolution.
How & where you'd use it. Helps water managers and environmental agencies spot algal blooms, pollution, and changing clarity in lakes used for drinking water, fishing, and recreation.
What's measured
Coverage & cadence
- Time span2018-12-21 → 2024-11-30
- Spatial extent-180, -90, 180, 90
- FormatsCOG, NetCDF
What you can do with it
- Follow rainfall, floods and surface-water extent
- Track soil moisture and the onset of drought
- Monitor lakes, rivers and groundwater storage
Official description
Provides semi-continuous observations for a large number of medium and large-sized lakes, according to the Global Lakes and Wetlands Database (GLWD) or otherwise of specific environmental monitoring interest. 10-daily observations are available at 100 m spatial resolution with a temporal extent from 2019 to 2024, derived from Sentinel-2 MSI.
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=["clms_lwq-nrt_global_100m_10daily_v1"], # 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 / xarrayBrowsing the Copernicus STAC is open; downloading bytes needs a free Copernicus Data Space account.
Official links
- Open data source Copernicus STAC