Analysis of Changes in Precipitation and Extremes Events in Ho Chi Minh City, Vietnam

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• 作者：Dao Nguyen Khoi^a ; ^b ; ^{dnkhoi86@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Hoang Thi Trang^a
• 关键词：Ho Chi Minh City ; precipitation ; climate extreme indices ; Mann-Kendall test
• 刊名：Procedia Engineering
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：142
• 期：Complete
• 页码：229-235
• 全文大小：580 K

文摘

Precipitation is one of the most important climate variables which can impact the urban water and urban flooding. Thus, knowledge of precipitation and precipitation extremes is important to manage urban water and to design urban drainage infrastructure to reduce the urban flooding. This paper presented trends in precipitation and precipitation extremes in Ho Chi Minh City for the 1980-2013 period based on the precipitation data obtained from nine rain gauges. Non-parametric test, i.e. Mann-Kendall test, was used for trend analysis, and the precipitation extremes indices were used to calculate the extreme events. The results indicated that the precipitation has increasing trend in the northwest part of the city and decreasing trend in the southeast part of the city in the 1980-2013 period. In addition, the precipitation and precipitation extremes had generally increasing trends. The results obtained in this study can be used for urban water management and sustainable urban drainage system in Ho Chi Minh City.