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Full catalog/clms_wb_global_100m_monthly_v1
clms_wb_global_100m_monthly_v1·dataset

Monthly global map of permanent water bodies (Copernicus)

CLMS WB Global 100m monthly V1
hydrosphere ESA ESA Copernicus active COGNetCDF
In plain English

What it measures. Shows where the Earth's surface is permanently covered by water, such as lakes and reservoirs, at a 100-metre level of detail.

How it's made. Derived from imagery taken by the Copernicus Sentinel-2 satellites and produced monthly by the EU's Copernicus Land Monitoring Service.

How & where you'd use it. Handy for monitoring lakes, reservoirs, and inland water extent, supporting water management, drought tracking, and environmental studies.

What's measured

CopernicusCLMSWBWater Bodiesinland waterglobalmonthly100mSentinel-2MSI

Coverage & cadence

  • Time span2020-10-01 → ongoing
  • Spatial extent-179.9999999, -60, 179.9999999, 80
  • 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 monthly maps of permanent water body extent at global scale in the spatial resolution of 100 m.

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_wb_global_100m_monthly_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.