The Impacts of Tropical Deforestation on Regional and Global Hydroclimate

这一更新是基于PI以前在研究热带地区土地覆盖扰动驱动的全球遥相关方面的工作（与厄尔尼诺现象将遥相关从热带海洋驱动到中纬度地区的情况大致相同）。 以前的工作是基于对三个现有全球气候模型中信号的检查。 PI将把这项工作扩展到更多的地球系统框架（PI使用术语“生态水文气候”），包括CO2强迫、植被动力学（特定的和相互作用的土地覆盖变化）以及模式分辨率/中尺度过程的影响。 这将在一个更有重点的建模框架中使用新开发的海洋陆地大气模型（OLAM）-一个与生态系统人口模型第二版（ED 2）陆地表面模型（水文学、陆地表面生物物理学、植被动态和土壤化学）相结合的伸缩气候模型。 新的耦合模型的验证是这个重新调整范围的项目的首要任务。 更广泛的影响包括加强对陆地表面过程及其对水文和气候影响的了解。 将资助一名博士后研究员。

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.