London Datastore - London Reservoir Levels
Greater London Authority open dataset of daily London reservoir levels since 1989 (percent of usable capacity, Lower Lee and Lower Thames groups), on a CKAN platform with downloadable resources.
data.london.gov.uk
At a glance
- Region
- United Kingdom (Europe)
- Coverage
- London
- Access
- Free
- Category
- Government
- Last updated
- 2026
What's inside
- reservoir storage
- water levels
What you can do with it
Typical work that data of this type supports.
- 01
Storage tracking
Follow storage and releases through the season.
Because it has: reservoir storage
- 02
Change over time
See how lakes and wetlands have grown or shrunk.
- 03
Operations
Support release and supply decisions.
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Storage from space
Estimate volume from satellite water area and altimetry.
- 02
Release decisions
Optimise releases against inflow forecasts.
- 03
Shrinkage alerts
Detect water bodies that are drying or being encroached.
Machine access and documentation
Open API
London Datastore CKAN API (CSV)
Licence: Open data
Listed in our registry of open water APIs, which WaterDataGPT can query live.
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