Assessing droughts using meteorological drought indices in Victoria, Australia

Rahmat, S, Jayasuriya, N and Bhuiyan, M 2015, 'Assessing droughts using meteorological drought indices in Victoria, Australia', Hydrology Research, vol. 46, no. 3, pp. 463-476.


Document type: Journal Article
Collection: Journal Articles

Title Assessing droughts using meteorological drought indices in Victoria, Australia
Author(s) Rahmat, S
Jayasuriya, N
Bhuiyan, M
Year 2015
Journal name Hydrology Research
Volume number 46
Issue number 3
Start page 463
End page 476
Total pages 14
Publisher I W A Publishing
Abstract Droughts adversely impact rural and urban communities, industry, primary production and thus, a country's economy. Drought monitoring is directed to detecting the onset, persistence and severity of the drought. In this study, meteorological drought indices such as the Standardized Precipitation Index (SPI), the Reconnaissance Drought Index (RDI) and deciles were assessed to investigate how well these indices reflect drought conditions in Victoria, Australia. The Theory of Runs was also used to identify the drought deficit. The study uses 55 years (1955-2010) of monthly precipitation and reference evapotranspiration data for five selected meteorological stations in Victoria, Australia. Results show that drought characterization using SPI and RDI provides a standardized classification of severity thus exhibiting advantages over deciles. As RDI considers both rainfall and potential evapotranspiration in calculations, it could be sensitive to climatic variability. For characterizing agricultural droughts, the application of the RDI is recommended. The use of the SPI was shown to be satisfactory for assessing and monitoring meteorological droughts. The SPI was also successful in detecting the onset and the end of historical droughts for the selected events.
Subject Civil Engineering not elsewhere classified
Keyword(s) Deciles
Drought characteristics
Reconnaissance Drought Index
Standardized Precipitation Index
Theory of Runs
DOI - identifier 10.2166/nh.2014.105
Copyright notice © IWA Publishing 2015
ISSN 1998-9563
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 5 times in Scopus Article | Citations
Altmetric details:
Access Statistics: 306 Abstract Views  -  Detailed Statistics
Created: Thu, 15 Jan 2015, 13:42:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us