Monthly Hydrological Summaries

Logo for the National Hydrological Monitoring Programme

The National Hydrological Monitoring Programme (NHMP) produces the monthly Hydrological Summary of the UK. This regular report describes the hydrological conditions during the preceding month, using the data holdings of the National River Flow Archive and National Groundwater Level Archive. Focusing on rainfall, river flows, groundwater levels, and reservoir stocks, it places the events of each month, and the conditions at the end of the month, in a historical context. 

Each report includes regional rainfall data - both recent and, where significant, longer-term accumulations for the major administrative divisions in the water industry. Also featured are maps and representative hydrographs of river flow and groundwater levels with supporting summary statistics and details of current stocks for a selection of major reservoirs. A commentary examines notable hydrological events and summarises both the national hydrological status and the water resources outlook. 

The Hydrological Summary is published on the 10th working day every month via this web-page, Twitter, and to those who have signed up to receive them by email. 

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Sign up to receive the monthly Hydrological Summary by email.

Latest month 

The Hydrological Summary for the latest month can be downloaded at the below link:

Latest Hydrological Summary for the UK

The latest Hydrological Summary will also be available in the NERC Open Research Archive (NORA) and displayed in the below list soon after publication. 

Archive

Archived versions of the Hydrological Summary are available in pdf format from December 1988. To access hydrological summaries from the archive, please use the below list.

CONFIDENCE: project description and main results View PDF on NORA
Simulating long-term carbon nitrogen and phosphorus biogeochemical cycling in agricultural environments View PDF on NORA
Multiple late-Pleistocene colonisation events of the Antarctic pearlwort Colobanthus quitensis (Caryophyllaceae) reveal the recent arrival of native Antarctic vascular flora View PDF on NORA
Perceptions of ecosystem services, disservices and willingness-to-pay for urban green space conservation View PDF on NORA
Effect of earthworms on soil physico-hydraulic and chemical properties, herbage production, and wheat growth on arable land converted to ley View PDF on NORA
Neural network analysis to evaluate ozone damage to vegetation under different climatic conditions View PDF on NORA
Hydrological outlook UK - April 2020 View PDF on NORA
A year in the life of a North Atlantic seabird: behavioural and energetic adjustments during the annual cycle View PDF on NORA
ECOSTRESS: NASA's next generation mission to measure evapotranspiration from the International Space Station View PDF on NORA
Associational resistance to both insect and pathogen damage in mixed forests is modulated by tree neighbour identity and drought View PDF on NORA
Every fifth published metagenome is not available to science View PDF on NORA
Lung function and microbiota diversity in cystic fibrosis View PDF on NORA

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