学术报告: Incorporating ForestGALES in the large-scale land surface model ORCHIDEE-CAN to quantify the interactions between forest management, climate change and storm damage

　　报告人: Dr. Yiying Chen 陈奕颖)

　　单位: Research Center for Environmental Changes, Academia Sinica (Taipei),Taiwan

　　职称: Assistant Research Fellow

　　地点：科研楼402会议室

　　时间： 2017年8月21日9:30

　　摘要: Earth System Models are currently the most advanced tools to study the interactions between humans, their use of natural resources and the climate. Although storms are much more damaging than fire to European forests, storm induced disturbances are not yet explicitly dealt with in Earth System Models. The inclusion of storm damage in Earth System Models has for long been hampered by their big-leaf approach which cannot provide the canopy structure information that is required by process-based wind fall models. Recently the ORCHIDEE model replaced the big-leaf assumptions and replaced it by a 3D description of the canopy structure. This opportunity was used to incorporate the process descriptions included in the small-scale wind risk model, ForestGALES, into the large-scale land surface model ORCHIDEE. This new version of ORCHIDEE has been parameterized over Southern Sweden for Gudrun (2005). Subsequently, the model performance and its parameters have been validated against big storms in southern Sweden in the period 1900-2010 and European storms between 1950 and 2010 for which the damage was archived in the EFI storms database. Once the model performance is found to be satisfactory, factorial simulation experiments will be used to disentangle the effects of forest management and climate change on storm damage in European forests between 1900 and 2010.