| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8862879 | Journal of Hydrology: Regional Studies | 2018 | 13 Pages |
Abstract
The optimum approach was found to be circular regions of influence with a size of 500 station-years. The regions of influence are least biased when defined using spatial proximity and including elevation in the calculating spatial proximity can help to reduce the bias in design rainfall estimates in areas of strong topographic relief. The March 2012 rainfall event increased site rainfall quantiles by 14% on average. When regionalisation is used the increases were substantially moderated and were within the uncertainty bounds of the design rainfalls. It is still not routine to provide uncertainty estimates with design rainfall data, but such information is particularly important given likely future changes in extreme rainfalls due to anthropogenic climate change.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth-Surface Processes
Authors
F. Johnson, J. Green,