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Full catalog/clms_lwq-reproc_global_300m_10daily_v1
clms_lwq-reproc_global_300m_10daily_v1·dataset

Lake water-quality archive, 2002-2012 (Copernicus)

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

What it measures. A reprocessed ten-day record of water-quality conditions, including algae and clarity, for many medium and large lakes worldwide, covering 2002 to 2012.

How it's made. Produced by ESA Copernicus from the MERIS sensor on the older Envisat satellite at about 300-meter resolution.

How & where you'd use it. Extends the lake water-quality record back two decades, giving a long-term baseline to study how lake health has changed over time.

What's measured

CopernicusCLMSLWQLake Water Qualityinland water qualityglobal10-daily300mSentinel-3OLCI

Coverage & cadence

  • Time span2002-05-11 → 2012-04-10
  • 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. The reprocessed archive provides 10-daily observations at 300 m spatial resolution based on MERIS sensor data with the temporal extent from 2002 to 2012.

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-reproc_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.