Global climate modelling and analysis: high latitude terrestrial feedbacks

全球气候建模和分析：高纬度陆地反馈

• 批准号: 172541-2008
• 负责人: Weaver, Andrew
• 金额: $ 5.1万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=513911
• 关键词: Global; climate; modelling; analysis; latitude

This purpose of this proposal is to assess the poorly understood climatological consequences of changes in biogeochemical cycles associated with permafrost thawing. As an important first step, the land surface component of the UVic Earth System climate model will be improved by incorporating an interactive methane cycle and a better representation of frozen soils. This will be done in order to examine the magnitude of biogeochemical feedbacks that could potentially arise if methane outgassing were to increase due to the expansion of northern wetlands arising from a deepening of the active layer.

本提案的目的是评估与永久冻土融化相关的地球化学循环变化的气候后果。作为重要的第一步，UVic地球系统气候模型的陆地表面部分将得到改进，纳入相互作用的甲烷循环和更好地表示冻土。这样做的目的是为了研究潜在的地球化学反馈的大小，如果甲烷释气增加，由于北方湿地的扩大所产生的加深的活性层。