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Spatiotemporal variability of annual and seasonal rainfall time series in Ho Chi Minh city, Vietnam

Journal of water and climate change, 2019-09, Vol.10 (3), p.658-670 [Peer Reviewed Journal]

Copyright IWA Publishing Sep 2019 ;ISSN: 2040-2244 ;EISSN: 2408-9354 ;DOI: 10.2166/wcc.2018.115

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  • Title:
    Spatiotemporal variability of annual and seasonal rainfall time series in Ho Chi Minh city, Vietnam
  • Author: Phuong, Dang Nguyen Dong ; Linh, Vu Thuy ; Nhat, Tran Thong ; Dung, Ho Minh ; Loi, Nguyen Kim
  • Subjects: Annual ; Annual rainfall ; Annual rainfall data ; Climate change ; Dry season ; Hydrology ; Precipitation ; Rain ; Rainfall ; Rainfall rate ; Rainy season ; Regression analysis ; Seasonal rainfall ; Seasonal variability ; Seasons ; Stations ; Statistical analysis ; Time series ; Trends ; Wet season
  • Is Part Of: Journal of water and climate change, 2019-09, Vol.10 (3), p.658-670
  • Description: Abstract This study analyzed spatial and temporal patterns of rainfall time series from 14 proportionally distributed stations in Ho Chi Minh City for the period 1980–2016. Both parametric and nonparametric approaches, specifically, linear regression, the Mann–Kendall test and Sen's slope estimator, were applied to detect and estimate the annual and seasonal trends after using original and notched boxplots for the preliminary interpretation. The outcomes showed high domination of positive trends in the annual and seasonal rainfall time series over the 37-year period, but most statistically significant trends were observed in the dry season. The results of trend estimation also indicated higher increasing rates of rainfall in the dry season compared to the rainy season at most stations. Even though the total amount of annual rainfall is mainly contributed by rainfall during the rainy season, the pronounced increment in the dry season can be a determining factor of possible changes in annual rainfall. Additionally, the interpolated results revealed a consistently increasing trend in the southeastern parts of the study area (i.e., Can Gio district), where annual rainfall was by far the lowest intensity compared to other regions.
  • Publisher: London: IWA Publishing
  • Language: English
  • Identifier: ISSN: 2040-2244
    EISSN: 2408-9354
    DOI: 10.2166/wcc.2018.115
  • Source: ProQuest Central
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