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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Climate change and its impact on the Himalayan glaciers - a case study on the Chorabari glacier, Garhwal Himalaya, India
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Climate change and its impact on the Himalayan glaciers - a case study on the Chorabari glacier, Garhwal Himalaya, India

机译：气候变化及其对喜马拉雅冰川的影响-以印度Garhwal喜马拉雅山Chorabari冰川为例

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摘要

Glaciers and small ice caps in temperate environments are sensitive indicators of the change in climate. Mountain glaciers provide a valuable tool for reconstruction of Holocene climate changes. The present work, thus, deals mainly with climatic change and its impact on the Himalayan glaciers based on the dating of lichens, developed on loops of moraines formed due to various stages of advance and retreat of the glacier. Here it has been shown that the date of the largest lichen on the loop of moraine that indicates the position of maximum advance of the glacier is 258 years. It shows the period when the Chorabari glacier started receding from the point of its maximum advancement in this part of the Himalaya. Earlier work in the Dokriani Bamak (glacier) has shown that the period of retreat in the respective part of the Himalaya is around 314 years. Research on various glaciers of the northern and southern hemisphere has shown that most of them started their retreat in the mid-eighteenth century, thereby indicating the end of the Little Ice Age maximum. These results suggest that climatic changes in the world started during early to mid-eighteenth century, though this needs further work for confirmation. There is every possibility that its effect was sensed first in the zone close to the equator by the north-facing Himalayan glaciers such as the Dokriani Bamak.
机译：温带环境中的冰川和小冰盖是气候变化的敏感指标。山冰川为全新世气候变化的重建提供了宝贵的工具。因此，目前的工作主要涉及气候变化及其对基于地衣年代的喜马拉雅冰川的影响，该地衣是由于冰川前进和后退的各个阶段而形成的mo环而形成的。此处显示，冰ora环上最大的地衣的日期（表明冰川最大进展的位置）为258年。它显示了Chorabari冰川从喜马拉雅山这一部分的最大前进点开始退缩的时期。 Dokriani Bamak（冰川）的早期工作表明，喜马拉雅山各部分的退缩期约为314年。对北半球和南半球各种冰川的研究表明，它们中的大多数在18世纪中叶开始退缩，从而预示了小冰期时代的终结。这些结果表明，世界气候变化始于十八世纪中叶，尽管这需要进一步的工作来确认。很有可能首先由北朝的喜马拉雅冰川（如Dokriani Bamak）在靠近赤道的区域中首先感知到它的影响。

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