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Large-scale climatic influences on precipitation and discharge for a British river basin
journal contribution
posted on 2016-05-11, 15:35 authored by David Lavers, Christel Prudhomme, David M. HannahThis article aims to identify the large-scale climate variables that yield significant statistical relationships with precipitation and discharge for a British river basin (Dyfi). Ranked correlation analysis was performed between gridded ERA-40 atmospheric data and Dyfi precipitation and discharge for individual months. Precipitation and discharge demonstrate significant negative correlation with mean sea level pressure (MSLP). Strongest MSLP correlation areas move from north of Britain in winter to central Britain in summer; this shift is associated with a displacement of geopotential (Z) and zonal wind (U). Movement of significant correlation regions (not captured by the North Atlantic Oscillation Index) highlights the dynamic nature of precipitation and river flow generating weather systems throughout the year. Existence of strong significant correlation shows potential for exploiting large-scale climate variables in forecasting precipitation and river flow in Britain.
History
School
- Social Sciences
Department
- Geography and Environment
Published in
Hydrological ProcessesVolume
24Issue
18Pages
2555 - 2563Citation
LAVERS, D., PRUDHOMME, C. and HANNAH, D.M., 2010. Large-scale climatic influences on precipitation and discharge for a British river basin. Hydrological Processes, 24 (18), pp.2555-2563Publisher
© John Wiley & Sons, Ltd.Version
- NA (Not Applicable or Unknown)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2010Notes
This paper is closed access.ISSN
0885-6087eISSN
1099-1085Publisher version
Language
- en