dataset · United Kingdom
Government / regulator
Monthly Dissolved Organic Carbon (DOC) concentration time series (1883 to 2014) measured at the outlet of the Thames basin (UK)
The dataset consists of the world's longest fluvial dissolved organic carbon (DOC) record (1883-2014). The data have been measured at the outlet of the Thames basin, upstream of London (UK) and are reported monthly. The River Thames basin is a temperate, lowland, mineral soil-dominated catchment of 9,948 km2. Water colour data have been measured between 1883 and 1990, and DOC between 1990 and 2014. DOC until 1990 has been estimated through calibration between water colour and DOC for the period
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What's in it
- Data offered docs-verified
- monthly dissolved organic carbon (DOC) concentration · water colour (1883-1990) · DOC concentration (1990-2014)
- Coverage docs-verified
- Thames basin (UK), measured at the outlet upstream of London; catchment 9,948 km2 · 1883-2014
- Resolution llm-inferred
- Monthly temporal; single basin-outlet location (Thames at Hampton / Teddington), tabular with no spatial grid
- Formats docs-verified
- CSV
- Access docs-verified
- Free, open access under the Open Government Licence; no API key or authentication stated
Useful for
- Use cases llm-inferred
- Long-term DOC baseline for Thames catchment water quality assessment · Trend context for organic carbon export and treatment-cost risk on Thames-fed supplies · Historical reference series for catchment water quality reporting
- Audience llm-inferred
- water quality scientists · hydrologists · environmental consultants · catchment modellers
Limitations
- Constraints llm-inferred
- Pre-1990 DOC is estimated from water colour calibration, not measured directly · Single location at the basin outlet; not representative of sub-catchments · Fixed record ending in 2014; no update cadence stated · Thames basin only
- Licence
- Open government licence
- Authentication
- Unknown — review source docs
- GitHub stars
- Unknown
- Last commit
- Unknown
- Last successful page check
- 16/10/2026
- Page health
- healthy
- Package
- Not recorded
- Verification
- Not independently verified
Provenance & evidence
Listed in ukceh-eidc public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata observed 14/10/2026 · research sweep: sweep-2026-10-16 (ukceh-eidc)