globalchange  > 气候减缓与适应
DOI: 10.3354/cr01535
Scopus记录号: 2-s2.0-85056276322
论文题名:
Characterization of climate change in southwestern Bangladesh: Trend analyses of temperature, humidity, heat index, and rainfall
作者: Rakib Z.
刊名: Climate Research
ISSN: 0936577X
出版年: 2018
卷: 76, 期:3
起始页码: 241
结束页码: 252
语种: 英语
英文关键词: Bangladesh ; Climate change ; Magnitude ; Significant ; Trends
Scopus关键词: agricultural production ; air temperature ; climate change ; index method ; rainfall ; regional climate ; relative humidity ; temperature effect ; trend analysis ; water budget ; Bangladesh
英文摘要: Recent studies have identified Bangladesh as one of the most vulnerable countries in the world with respect to climate change. The objective of this study was to determine the longterm trends in annual, seasonal, and monthly air temperature, relative humidity, heat index, and rainfall in the south-western region of Bangladesh. The non-parametric Mann-Kendall trend test and Sen's slope methods were applied to quality-controlled time series data at 7 meteorological stations distributed across the region to detect the significance and magnitude of the trends in the selected climatic variables during 1960-2010. Based on these analyses, (1) significant rising trends in daily maximum, minimum, and mean temperatures were detected at a majority of the stations within the area, with pronounced warming during summer months; (2) relative humidity showed a significant increasing trend at both annual and seasonal scales over the region; (3) analysis of the heat index, which indicates what the temperature feels like to the human body when relative humidity is factored in with temperature, displayed a distinct increase in level of discomfort, exposing the population of Bangladesh to heat-related health hazards; and (4) the distribution of monthly rainfall patterns in the region seems to be changing, with significant variation in rainfall trends within the monsoon season by 6-7 mm yr-1. The findings of this study increase our understanding of regional climate patterns, which can simplify larger analyses such as water budgets and agricultural production that depend on these types of data inputs, especially for the southwestern region of Bangladesh. © The authors 2018.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116247
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Recommended Citation:
Rakib Z.. Characterization of climate change in southwestern Bangladesh: Trend analyses of temperature, humidity, heat index, and rainfall[J]. Climate Research,2018-01-01,76(3)
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