DOI: 10.2166/wcc.2014.007
论文题名: Precipitation trends in Victoria, Australia
作者: Rahmat S.N. ; Jayasuriya N. ; Bhuiyan M.A.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2015
卷: 6, 期: 2 起始页码: 278
结束页码: 287
语种: 英语
英文关键词: Mann–Kendall test
; Non-parametric trend test
; Sen’s slope
; Sequential Mann–Kendall test
英文摘要: Annual rainfall series trends were investigated for more than 100 years of data using two nonparametric trend tests Mann–Kendall (MK) and Sen’s slope (Q) for five selected meteorological stations in Victoria, Australia. The annual rainfall time series showed no significant trends for any of the five stations. To assess the sensitivity of trends to the length of the time periods considered, the annual rainfall analysis was repeated using recent data from approximately half the data set between 1949 and 2011. Contrasting results from the original full data set analysis were revealed. All five stations showed decreasing trends with two stations showing significant trends suggesting that this recent time period has added more low precipitation data to the time series. The year of abrupt changes for all the five stations identified using the sequential MK test varied. Conclusions drawn from this paper, point to the importance of selecting the time series data length in identifying trends and abrupt changes. Due to the climate variability, trend testing results might be biased and strongly dependent on the data period selected. Therefore, use of the full data set available would be required in order to improve understanding of change or to undertake any further studies. © IWA Publishing 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67676
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor, Malaysia; School of Civil, Environmental and Chemical Engineering, RMIT University, GPO Box 2476, Melbourne, VIC, Australia
Recommended Citation:
Rahmat S.N.,Jayasuriya N.,Bhuiyan M.A.. Precipitation trends in Victoria, Australia[J]. Journal of Water and Climate Change,2015-01-01,6(2)