DOI: 10.1016/j.atmosres.2017.10.014
Scopus记录号: 2-s2.0-85033552682
论文题名: Drought analysis and water resource availability using standardised precipitation evapotranspiration index
作者: Hui-Mean F. ; Yusop Z. ; Yusof F.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 201 起始页码: 102
结束页码: 115
语种: 英语
英文关键词: Average recurrence interval
; Climatic water balance
; Potential evapotranspiration
; Standardised precipitation evapotranspiration index
Scopus关键词: Drought
; Evapotranspiration
; Climatic water balance
; Meteorological station
; Northeast monsoon
; Potential evapotranspiration
; Recurrence intervals
; Resource availability
; Standardised precipitation evapotranspiration index
; Water resources planning and managements
; Water resources
; drought
; evapotranspiration
; parameterization
; precipitation assessment
; resource availability
; standard (reference)
; topographic effect
; water budget
; water management
; water resource
; Malaysia
英文摘要: Trend analysis for potential evapotranspiration (PET) and climatic water balance (CWB) is critical in identifying the wetness or dryness episodes with respect to the water surplus or deficit. The PET is computed based on the monthly average temperature for the entire Peninsular Malaysia using Thornthwaite parameterization. The trends and slope's magnitude for the PET and CWB were then investigated using Mann-Kendall, Spearman's rho tests and Thiel-Sen estimator. The 1-, 3-, 6- and 12-month standardised precipitation evapotranspiration index (SPEI) is applied to determine the drought episodes and the average recurrence interval are calculated based on the SPEI. The results indicate that most of the stations show an upward trend in annual and monthly PET while majority of the regions show an upward trend in annual CWB except for the Pahang state. The increasing trends detected in the CWB describe water is in excess especially during the northeast monsoons while the decreasing trends imply water insufficiency. The excess water is observed mostly in January especially in the west coast, east coast and southwest regions that suggest more water is available for crop requirement. The average recurrence interval for drought episodes is almost the same for the smaller severity with various time scale of SPEI and high probability of drought occurrence is observed for some regions. The findings are useful for policymakers and practitioners to improve water resources planning and management, in particular to minimise drought effects in the future. Future research shall address the influence of topography on drought behaviour using more meteorological stations and to include east Malaysia in the analysis. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108998
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Centre for Environmental Sustainability and Water Security, Universiti Teknologi Malaysia, UTM, Johor Bahru, Johor 81310, Malaysia; Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, UTM, Johor Bahru, Johor 81310, Malaysia
Recommended Citation:
Hui-Mean F.,Yusop Z.,Yusof F.. Drought analysis and water resource availability using standardised precipitation evapotranspiration index[J]. Atmospheric Research,2018-01-01,201