Dynamics of Intracontinental Glaciers of Siberia and East Asia since the Little Ice Age

IF 0.3 Q4 GEOGRAPHY Geography and Natural Resources Pub Date : 2024-03-22 DOI:10.1134/s187537282304011x
V. M. Plyusnin, A. D. Kitov
{"title":"Dynamics of Intracontinental Glaciers of Siberia and East Asia since the Little Ice Age","authors":"V. M. Plyusnin, A. D. Kitov","doi":"10.1134/s187537282304011x","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>We present results from a 10-year study of the local features of mountain glacier dynamics in Central Asia—from the latitudes of the middle taiga of Cisbaikalia and Transbaikalia, through the mountains of the steppe zone of Mongolian Altai and the desert zone of China to the cold deserts of the Himalayas. Multitemporal satellite images were interpreted, making it possible to obtain quantitative information on changes in the area and length of glaciers in key areas of the studied mountain territories. These data are linked to climatic parameters, absolute altitude, permafrost, morphology and tectonics of the mountain ridges, and anthropogenic impact. The study revealed a general trend: the retreat of glaciers starting in the 1970s, with an increase in the average annual air temperature in the Northern Hemisphere by 1.4‒1.6°С. Accelerated glacier melting and a reduction in glacier length were observed from 1990 to 2020, when the most significant warming occurred. The following years with above-average temperatures are highlighted: 1990, 1995, 1997, 2002, 2005, 2005, 2007, 2008, 2011, 2012, 2016, 2019, and 2020. This period also witnessed an increase in the area and length of some glaciers studied in 2013‒2015 and in 2021 associated with abnormal winter precipitation in 2012, 2013, and 2020. It was found that in the mountains in the south of Eastern Siberia, the aforementioned years showed a slowdown in the reduction of the area of glaciers, an increase of the number of perennial snow patches, and an increase in the frequency of snow avalanches. It has been revealed that the glaciers in Siberia, Mongolian Altai, and the Altyn-Tag Range retreated from the terminal moraines of the Little Ice Age by an average of 500 m; on the Karlyktag Range, 800‒900 m; and in the Himalayas (Langtang area), from 1 to 4.5 km.</p>","PeriodicalId":44739,"journal":{"name":"Geography and Natural Resources","volume":null,"pages":null},"PeriodicalIF":0.3000,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geography and Natural Resources","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1134/s187537282304011x","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOGRAPHY","Score":null,"Total":0}
引用次数: 0

Abstract

We present results from a 10-year study of the local features of mountain glacier dynamics in Central Asia—from the latitudes of the middle taiga of Cisbaikalia and Transbaikalia, through the mountains of the steppe zone of Mongolian Altai and the desert zone of China to the cold deserts of the Himalayas. Multitemporal satellite images were interpreted, making it possible to obtain quantitative information on changes in the area and length of glaciers in key areas of the studied mountain territories. These data are linked to climatic parameters, absolute altitude, permafrost, morphology and tectonics of the mountain ridges, and anthropogenic impact. The study revealed a general trend: the retreat of glaciers starting in the 1970s, with an increase in the average annual air temperature in the Northern Hemisphere by 1.4‒1.6°С. Accelerated glacier melting and a reduction in glacier length were observed from 1990 to 2020, when the most significant warming occurred. The following years with above-average temperatures are highlighted: 1990, 1995, 1997, 2002, 2005, 2005, 2007, 2008, 2011, 2012, 2016, 2019, and 2020. This period also witnessed an increase in the area and length of some glaciers studied in 2013‒2015 and in 2021 associated with abnormal winter precipitation in 2012, 2013, and 2020. It was found that in the mountains in the south of Eastern Siberia, the aforementioned years showed a slowdown in the reduction of the area of glaciers, an increase of the number of perennial snow patches, and an increase in the frequency of snow avalanches. It has been revealed that the glaciers in Siberia, Mongolian Altai, and the Altyn-Tag Range retreated from the terminal moraines of the Little Ice Age by an average of 500 m; on the Karlyktag Range, 800‒900 m; and in the Himalayas (Langtang area), from 1 to 4.5 km.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
小冰河时期以来西伯利亚和东亚大陆内冰川的动态变化
摘要 我们介绍了对中亚地区--从西贝加尔和外贝加尔的中泰加林纬度,到蒙古阿尔泰草原区和中国沙漠区的山脉,再到喜马拉雅山的寒冷沙漠--山地冰川动态的地方特征进行的一项为期十年的研究结果。对多时空卫星图像进行了解读,从而获得了所研究山区主要地区冰川面积和长度变化的定量信息。这些数据与气候参数、绝对高度、永久冻土、山脊形态和构造以及人为影响有关。研究揭示了一个总体趋势:从 20 世纪 70 年代开始,随着北半球年平均气温上升 1.4-1.6°С ,冰川开始后退。从 1990 年到 2020 年,冰川加速融化,冰川长度减少,这一时期的变暖最为显著。以下气温高于平均水平的年份被突出显示:1990、1995、1997、2002、2005、2005、2007、2008、2011、2012、2016、2019 和 2020 年。在此期间,2013-2015 年和 2021 年研究的一些冰川的面积和长度也有所增加,这与 2012、2013 和 2020 年异常的冬季降水有关。研究发现,在东西伯利亚南部山区,上述年份的冰川面积减少速度放缓,常年积雪斑块数量增加,雪崩频率上升。研究表明,西伯利亚、蒙古阿尔泰和阿尔金山-塔格山脉的冰川从小冰期的末端冰碛平均后退了 500 米;卡里克塔格山脉的冰川后退了 800 至 900 米;喜马拉雅山(朗唐地区)的冰川后退了 1 至 4.5 公里。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
0.50
自引率
0.00%
发文量
24
期刊介绍: Geography and Natural Resources  publishes information on research results in the field of geographical studies of nature, the economy, and the population. It provides ample coverage of the geographical aspects related to solving major economic problems, with special emphasis on regional nature management and environmental protection, geographical forecasting, integral regional research developments, modelling of natural processes, and on the advancement of mapping techniques. The journal publishes contributions on monitoring studies, geographical research abroad, as well as discussions on the theory of science.
期刊最新文献
Identification of Critical Telecommunications Infrastructure in Russia: A Geographical Approach Estimating Carbon Emissions Resulting from Land-Use Changes at Global and Regional Levels in Foreign Research Criterion of Completeness of Sustainable Environmental Management Assessment of the Load of Nutrients and Pollutants on the Russian Part of the Irtysh River Methodological Approaches to the Identification of Hydrologically Sensitive Landscapes (Case Study of the Selenga River Basin)
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1