The Impacts of Tropical Deforestation on Regional and Global Hydroclimate

热带森林砍伐对区域和全球水文气候的影响

• 批准号: 0634745
• 负责人: Roni Avissar
• 金额: --
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-12-01 至 2009-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0634745&HistoricalAwards=false
• 关键词: Impacts; Tropical; Deforestation; Regional; Global; Impacts; Tropical; Deforestation; Regional; Global

This renewal is based upon the PI's previous work in examining global teleconnections driven by land cover perturbations in the tropics (much in the same vein as El Nino drives teleconnections into mid-latitudes from the tropical oceans). Previous work was based on examination of signals in three existing global climate models. The PI will extend the work into more of an earth system framework (the PI uses the term "EcoHydroClimatological"), including CO2 forcing, vegetation dynamics (specified and interactive land cover change), and the effects of model resolution/mesoscale processes. This will be done in a more focused modeling framework using the newly-developed Ocean Land Atmosphere Model (OLAM) - a telescoping climate model coupled to the Ecosystem Demography Version 2 Model (ED2) land surface model (hydrology, land-surface biophysics, vegetation dynamics and soil chemistry). Validation of the new coupled model is the primary task of this rescoped project. The broader impacts include enhanced knowledge about land surface processes and their influence on hydrology and climate. A post-doctoral researcher will be supported.

这种续签是基于PI先前在检查热带地区的土地覆盖扰动驱动的全球远程连接方面的工作（与El Nino驱动远程连接的脉络相同，从而进入了热带海洋中期）。 先前的工作是基于对三种现有全球气候模型中信号的检查。 PI将将工作扩展到更多的地球系统框架（PI使用“生态氢化气候”一词），包括CO2强迫，植被动力学（指定和交互式土地覆盖率变化）以及模型分辨率/中尺度过程的影响。 这将在更集中的建模框架中使用新开发的海洋大气模型（OLAM） - 伸缩气候模型与生态系统人口统计学版本2版本2模型（ED2）土地表面模型（水文，地面生物物理学，植被，植被动力学和土壤化学）结合使用。 新耦合模型的验证是该救援项目的主要任务。 更广泛的影响包括对土地表面过程的增强知识及其对水文学和气候的影响。 博士后研究人员将得到支持。