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ESS 21。Lec 10。在薄冰上:永冻层和碳循环

ESS 21. Lec 10. On Thin Ice: Permafrost and the Carbon Cycle
课程网址: http://ocw.uci.edu/lectures/ess_21_lec_10_on_thin_ice_permafrost_...  
主讲教师: Julie Ferguso
开课单位: 加州大学尔湾分校
开课时间: 2014-01-31
课程语种: 英语
中文简介:
UCI ESS 21:薄冰上(2014年冬季)Lec 10。在薄冰上——永冻层和碳循环——看完整的课程:### Instructor:朱莉·弗格森,博士学位许可证:Creative Commons CC BY SATerms of Use:### .More课程### 描述:近几十年来,由于人为气候变化,我们观察到冰层显著减少。冰雪范围和数量的观测和预测变化将对当地和全球的气候、生态系统和人口产生重大影响。本课程将向学生介绍气候变化背后的科学,以及控制冰层组成部分的物理和化学过程,包括雪、永冻层、海冰、冰川和冰原。将特别强调每个组成部分在更大的气候系统中的重要作用和潜在的反馈。我们还将研究冰层融化将对北极地区周围国家和全世界造成的一些社会、经济和政治影响,例如获得新的石油储备、永久冻土融化造成的基础设施损坏、海平面上升和淡水减少可用性。已记录1月31日,2014年。要求署名:Ferguson,Julie。《薄冰21》(UCI开放课程:加州大学欧文分校),[访问日期]。许可证:Creative Commons Attribution Sharelike3.0美国许可证。
课程简介: UCI ESS 21: On Thin Ice (Winter 2014)Lec 10. On Thin Ice -- Permafrost and the Carbon Cycle --View the complete course:### Instructor: Julie Ferguson, Ph.D.License: Creative Commons CC-BY-SATerms of Use: ### .More courses at ### Description: In recent decades we have observed a significant reduction of the cryosphere due to anthropogenic climate change. The observed and predicted changes in the extent and amount of snow and ice will have major impacts on climate, ecosystems and human populations both at a local and global scale. This course will introduce students to the science behind climate change as well as the physical and chemical processes that govern components of the cryosphere, including snow, permafrost, sea ice, glaciers and ice sheets. Particular emphasis will be placed on the important role that each component plays in the larger climate system and potential feedbacks. We will also examine some of the social, economic and political impacts that the melting cryosphere will have on countries around the Arctic and also worldwide, such as access to new petroleum reserves, infrastructure damage due to melting permafrost, sea level rise and decreases in freshwater availability.Recorded on January 31, 2014.Required attribution: Ferguson, Julie. On Thin Ice 21 (UCI OpenCourseWare: University of California, Irvine), . [Access date]. License: Creative Commons Attribution-ShareAlike 3.0 United States License.
关 键 词: 薄冰; 碳循环; 永冻层
课程来源: 视频讲座网
最后编审: 2022-01-05:liyy
阅读次数: 63