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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Changing features of the climate and glaciers in China's monsoonal temperate glacier region - art. no. 4530
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Changing features of the climate and glaciers in China's monsoonal temperate glacier region - art. no. 4530

机译：中国季风温带冰川地区气候和冰川的变化特征-艺术。没有。 4530

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1] Climatic data, ice core records, the tree ring index, and recorded glacier variations have been used to reconstruct a history of climatic and glacial changes in the monsoonal temperate glacier region of southwestern China during the last 400 years. The region's temperature has increased in a fluctuating manner during the twentieth century after two cold stages of the Little Ice Age ( seventeenth to nineteenth centuries), with a corresponding retreat of most of the glaciers, against a background of global warming. Retreat rates accelerated after the 1980s. The few advancing glaciers that did exist have started to retreat in recent years. The amount, trend, and amplitude of variation of precipitation have differed in different parts of the region. The Dasuopu ice core, from the western part of the region, shows a decreasing trend in precipitation, the converse of the trend in temperature. In the eastern part of the region, however, a rising trend of rainfall has accompanied increasing temperatures as a result of the variable atmospheric circulations from different sources. The southwest monsoon, the principal controlling factor in the Chinese monsoonal temperate glacier region, can be classified into the Indian monsoon and the Bengal monsoon. The former passes across the Indian Peninsula from the Arabian Sea and transports vapor for precipitation in the western part of the monsoonal temperate glacier region. The Bengal monsoon, originating in the Bay of Bengal, is the major source of precipitation in the eastern part of the region. The eastern part is also influenced by the southeast monsoon arriving from the western Pacific, and the western part is affected in winter by the southern branch of the westerly circulation. This complex atmospheric situation results in differing patterns of precipitation in the western and eastern zones. Although it is clear that both temperature and precipitation affect the glaciers, further work is needed to confirm which of these is the major factor influencing present glacier change. [References: 35
机译：1]气候数据，冰芯记录，年轮指数和记录的冰川变化已被用于重建中国西南地区季风性温带冰川地区近400年的气候和冰川变化历史。在小冰期的两个寒冷阶段（17至19世纪）之后，该地区的温度在20世纪以波动的方式上升，在全球变暖的背景下，大多数冰川相应地退缩了。 1980年代后，撤退速度加快。近年来确实存在的少数先进冰川已经开始退缩。降水变化的数量，趋势和幅度在该地区的不同地区有所不同。来自该地区西部的大索普冰芯显示出降水量减少的趋势，而温度却相反。然而，在该区域的东部，由于来自不同来源的大气环流的变化，降雨伴随着气温升高而呈上升趋势。西南季风是中国季风温带冰川地区的主要控制因素，可以分为印度季风和孟加拉季风。前者从阿拉伯海穿过印度半岛，并在季风温带冰川地区的西部输送蒸气以沉淀。起源于孟加拉湾的孟加拉季风是该地区东部的主要降水来源。东部也受到来自西太平洋的东南季风的影响，而西部则受冬季西风环流的影响。这种复杂的大气状况导致西部和东部地区的降水方式不同。尽管很明显温度和降水都会影响冰川，但还需要进一步的工作来确定其中哪些是影响当前冰川变化的主要因素。 [参考：35

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