Hydrology literally means the study of water. This involves measuring and observing everything from rainfall to the chemical makeup of rivers. Hydrology can then provide information on floods, droughts, drinking water, erosion, and weather modelling.

Water cycles have evolved over long periods of time to deal with environmental pressures. They are not, however, adapted to deal with new threats such as climate change, population growth, pollution and land-use change. It is difficult to tell just how these pressures will affect complex water systems and the biodiversity that relies on them. 

CEH work on hydrology


Monitoring sites

Research Facilities

High flow in a river
December 2015 UK hydrological summary and storms analysis
Ganges river, India
Outputs of December 2015 Science Workshop
Flood risk map data product
Storm Desmond caused severe flooding across northern England
Ganges near Haridwar. Photo: Mike Acreman
UK-India workshop on future research needs to underpin sustainable management of the Ganga
FEH Supplementary Report cover
Online access replaces CD-ROM
riverside vegetation
Managing colour levels in drinking water
Satellite image of Lake Naivasha, Kenya c. NASA
Highlighting international catchment management activities
Men's road cycling race during wet conditions in Glasgow 2014 Commonwealth Games
Report is published on an approach trialed during Glasgow Commonwealth Games
Weir Photo: Shutterstock
The UK’s focal point for river flow data