Arid
DOI10.2166/nh.2017.188
Potential changes in the number of wet days and its effect on future intense and annual precipitation in northern Oman
Gunawardhana, Luminda Niroshana1; Al-Rawas, Ghazi A.1; Kwarteng, Andy Y.2; Al-Wardy, Malik3; Charabi, Yassine4
通讯作者Gunawardhana, Luminda Niroshana
来源期刊HYDROLOGY RESEARCH
ISSN0029-1277
EISSN2224-7955
出版年2018
卷号49期号:1页码:237-250
英文摘要

The changes in the number of wet days (NWD) in Oman projected by climate models was analyzed, focusing mostly on variation of precipitation intensity and its effect on total annual precipitation (PTOT) in the future. The daily precipitation records of 49 gage stations were divided into five regions. Of the five general circulation models studied, two of them were selected based on their performance to simulate local-scale precipitation characteristics. All regions studied, except the interior desert region of the country, could experience fewer wet days in the future, with the most significant decreases estimated in southern Oman. The contribution from the cold frontal troughs to the PTOT in the northeast coastal region would decrease from 85% in the 1985-2004 period to 79% during the 2040-2059 period and further decrease to 77% during the 2080-2099 period. In contrast, results depict enhanced tropical cyclone activities in the northeast coastal region during the post-monsoon period. Despite the decreases in the NWD, PTOT in all regions would increase by 6-29% and 35-67% during the 2040-2059 and 2080-2099 periods, respectively. These results, therefore, show that increases in precipitation intensity dominate the changes in PTOT.


英文关键词cold frontal troughs CMIP5 orographic precipitation tropical cyclone
类型Article
语种英语
国家Oman
收录类别SCI-E
WOS记录号WOS:000429613800017
WOS关键词CLIMATE-CHANGE ; RAINFALL ; INCREASE ; MODEL
WOS类目Water Resources
WOS研究方向Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/209939
作者单位1.Sultan Qaboos Univ, Civil & Architectural Engn Dept, Coll Engn, POB 50 Al Khod, Muscat 123, Oman;
2.Sultan Qaboos Univ, Remote Sensing & GIS Ctr, Muscat, Oman;
3.Sultan Qaboos Univ, Coll Agr & Marine Sci, Soils Water & Agr Engn Dept, Muscat, Oman;
4.Sultan Qaboos Univ, Dept Geog, Coll Arts & Social Sci, Muscat, Oman
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Gunawardhana, Luminda Niroshana,Al-Rawas, Ghazi A.,Kwarteng, Andy Y.,et al. Potential changes in the number of wet days and its effect on future intense and annual precipitation in northern Oman[J],2018,49(1):237-250.
APA Gunawardhana, Luminda Niroshana,Al-Rawas, Ghazi A.,Kwarteng, Andy Y.,Al-Wardy, Malik,&Charabi, Yassine.(2018).Potential changes in the number of wet days and its effect on future intense and annual precipitation in northern Oman.HYDROLOGY RESEARCH,49(1),237-250.
MLA Gunawardhana, Luminda Niroshana,et al."Potential changes in the number of wet days and its effect on future intense and annual precipitation in northern Oman".HYDROLOGY RESEARCH 49.1(2018):237-250.
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