Boland, J. W. and Howlett, P. G. and Piantadosi, J. and Roslinazairimah, Zakaria (2016) Modelling and Simulation of Volumetric Rainfall for a Catchment in the Murray-Darling Basin. ANZIAM Journal. pp. 1-24. ISSN 1445-8735. (In Press / Online First) (In Press / Online First)
|
PDF
fist-2016-ros-Modelling and Simulation of Volumetric Rainfall.pdf Download (86kB) | Preview |
Abstract
We discuss modelling and simulation of volumetric rainfall in a catchment of the Murray–Darling Basin – an important food production region in Australia that was seriously affected by a recent prolonged drought. Consequently, there has been sustained interest in development of improved water management policies. In order to model accumulated volumetric catchment rainfall over a fixed time period, it is necessary to sum weighted rainfall depths at representative sites within each sub-catchment. Since sub-catchment rainfall may be highly correlated, the use of a Gamma distribution to model rainfall at each site means that catchment rainfall is expressed as a sum of correlated Gamma random variables. We compare four different models and conclude that a joint probability distribution for catchment rainfall constructed by using a copula of maximum entropy is the most effective.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Rainfall modelling; correlated Gamma distributions; copulas of maximum entropy |
| Subjects: | G Geography. Anthropology. Recreation > GB Physical geography |
| Faculty/Division: | Faculty of Industrial Sciences And Technology |
| Depositing User: | Noorul Farina Arifin |
| Date Deposited: | 18 Oct 2016 05:07 |
| Last Modified: | 03 Oct 2018 05:51 |
| URI: | http://umpir.ump.edu.my/id/eprint/14837 |
| Download Statistic: | View Download Statistics |
Actions (login required)
 |
View Item |