加尔各答市政公司城市洪水的规模及其影响因素

Dibakar Dutta, Ramkrishna Maiti
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引用次数: 0

摘要

过去几十年来,加尔各答市政公司的洪水强度和频率不断增加,对经济和社会造成了很大影响。政府间气候变化专门委员会(IPCC)概述了不同天气事件的全球趋势,并指出在大多数陆地地区,强降水事件的频率有所增加(IPCC AR4,2007 年)。过去 100 年的降雨数据显示,降雨强度和大暴雨呈周期性模式,导致加尔各答市政公司洪水泛滥。加尔各答市政公司及其周边地区的土地利用变化导致蓄水能力下降,排水系统堵塞,造成内涝。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Magnitude of Urban Flood in Kolkata Municipal Corporation and its Influencing Factors
In last few decades the intensity and frequency of floods has been increasing in Kolkata Municipal Corporation which effects economy and society to large extent. The Inter-Governmental Panel on Climate Change (IPCC) overviewed the Global trends of different weather events and notes that the frequency of heavy precipitation events has increased over most land areas (IPCC AR4 2007). In last 100 year’s rainfall data shows a cyclic pattern of rainfall intensification and high magnitude storm which led to intensive flood in Kolkata Municipal Corporation. Land use change in Kolkata Municipal Corporation and its surrounding results in reduction of water holding capacity as well a drainage congestion to contribute waterlogging.
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