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.

Setting the agenda for social science research on the human microbiome View PDF on NORA
Scotland’s biodiversity progress to 2020 Aichi targets: conserving genetic diversity – development of a national approach for addressing Aichi Biodiversity Target 13 that includes wild species View PDF on NORA
Accumulation of polybrominated diphenyl ethers and microbiome response in the great pond snail Lymnaea stagnalis with exposure to nylon (polyamide) microplastics View PDF on NORA
Developing observational methods to drive future hydrological science: can we make a start as a community? View PDF on NORA
Linking nitrous oxide and nitric oxide fluxes to microbial communities in tropical forest soils and oil palm plantations in Malaysia in laboratory incubations View PDF on NORA
Measurements of traffic dominated pollutant emissions in a Chinese megacity View PDF on NORA
Learning from the past and considering the future of chemicals in the environment View PDF on NORA
Management of UK priority invasive alien plants: a systematic review protocol View PDF on NORA
Structural basis for C4 photosynthesis without Kranz anatomy in leaves of the submerged freshwater plant Ottelia alismoides View PDF on NORA
An evaluation of four years of nitrous oxide fluxes after application of ammonium nitrate and urea fertilisers measured using the eddy covariance method View PDF on NORA
Inference of spatial heterogeneity in surface fluxes from eddy covariance data: a case study from a subarctic mire ecosystem View PDF on NORA
The UK Environmental Change Network datasets – integrated and co-located data for long-term environmental research (1993–2015) View PDF on NORA

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