River flow responses to climate variability

Andrew Chiverton has been doing a PhD with the NRFA since Sep 2011 and will be handing in his thesis soon. He has been exploiting the data holdings of the archive to examine the role that catchment properties have on influencing river flow responses to climate variability. Over the last few months two papers have been published based on his research. Firstly, a new method for regionalisation that classifies catchments based on temporal dependence in river flow - a proxy for the precipitation-to-flow relationship. Secondly, a new method  for detecting variability in river flow series and attributing the changes to precipitation. Both papers are based on applying Variograms to river flow time series, a novel approach that has rarely been applied in hydrology.