The National Hydrological Monitoring Programme (NHMP) is undertaken jointly by the Centre for Ecology & Hydrology and the British Geological Survey. The Programme aims to provide an authoritative voice on hydrological conditions throughout the UK. 

Press and Media enquiries should be directed to the CEH Press Office.

The National Hydrological Monitoring Programme (NHMP) conducts a wide range of analyses to exploit the data holdings of the archive, and has a particular obligation to document contemporary hydrological conditions and to identify and interpret long-term hydrological change and variability. NHMP publications are:

National River Flow Archive (NRFA) publications can be found here.