Multi-site stochastic modelling of daily rainfall in Uganda

Kigobe, Max, McIntyre, Neil, Wheater, Howard and Chandler, Richard (2011) Multi-site stochastic modelling of daily rainfall in Uganda. Hydrological Sciences Journal, 56 1: 17-33. doi:10.1080/02626667.2010.536548

Author Kigobe, Max
McIntyre, Neil
Wheater, Howard
Chandler, Richard
Title Multi-site stochastic modelling of daily rainfall in Uganda
Journal name Hydrological Sciences Journal   Check publisher's open access policy
ISSN 0262-6667
Publication date 2011-01
Year available 2011
Sub-type Article (original research)
DOI 10.1080/02626667.2010.536548
Open Access Status
Volume 56
Issue 1
Start page 17
End page 33
Total pages 17
Place of publication Abingdon, Oxfordshire, United Kingdom
Publisher Taylor and Francis
Collection year 2011
Language eng
Formatted abstract
 The availability of precipitation records in Uganda has significantly decreased since the 1970s, severely limiting the data available for hydrological modelling. This problem has been addressed in this study by using the generalized linear modelling (GLM) framework to develop stochastic daily rainfall models that have the capability for extending and infilling historic data sets. We have used a relatively sparse raingauge network in the Kyoga basin (in the Upper Nile) to reproduce spatial and temporal patterns of precipitation by fitting occurrence (logistic) and amounts (gamma) models as functions of dominant seasonal, climate and geographical controls. The GLMs were able to reproduce rainfall properties when predefined climatic zones are modelled independently. We were not able to represent the spatial variability of the equatorial climate with one integrated basin scale model, however this is not thought to preclude application to basin scale hydrological modelling.
Keyword Generalized linear models
Stochastic models
Climate change
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Water in the Minerals Industry
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