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Full catalog/clms_lwq-nrt_global_300m_10daily_v1
clms_lwq-nrt_global_300m_10daily_v1·dataset

Global lake water-quality monitoring, 2016-2024 (Copernicus)

CLMS LWQ NRT Global 300m 10-daily V1
hydrosphere ESA ESA Copernicus COGNetCDF
In plain English

What it measures. Gives ten-day observations of water-quality conditions, like algae presence and clarity, for many medium and large lakes worldwide. This version spans 2016 to 2024.

How it's made. Produced by ESA Copernicus from the OLCI instrument on Sentinel-3 at about 300-meter resolution.

How & where you'd use it. Useful for tracking the health of lakes globally, catching bloom events and water-clarity changes, and supporting freshwater conservation and research.

What's measured

CopernicusCLMSLWQLake Water Qualityinland water qualityglobal10-daily300mSentinel-3OLCI

Coverage & cadence

  • Time span2016-04-21 → 2024-10-31
  • 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. 10-daily observations are available at 300 m spatial resolution with a temporal extent from 2016 to 2024, derived from Sentinel-3 OLCI.

Get the data

copernicus_access.py
# 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_300m_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 / xarray
Browsing the Copernicus STAC is open; downloading bytes needs a free Copernicus Data Space account.