Ecosystem-Atmosphere Interaction

生态系统-大气相互作用

• 批准号: 1000218825-2009
• 负责人: Chen, Jing
• 金额: $ 10.93万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Canada Research Chairs
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=643006
• 关键词: Ecosystem; Atmosphere; Interaction

Advanced techniques are developed to use space-borne Earth observations for retrieving vegetation structural and physiological information, and this information is used in computer models for estimating the terrestrial carbon source and sink distribution. These models are validated against measured carbon, water and energy fluxes over forests, wetlands, grassland and crops, and their results are verified against independent estimates based on atmospheric CO2 concentration data acquired globally at surface stations and by satellites. This research will not only help improve global carbon cycle estimation and future climate projection but also provide scientific information for making government policies related to climate change.

开发了利用星载地球观测来恢复植被结构和生理信息的先进技术，并将这些信息用于计算机模型，以估计陆地碳源和汇的分布。这些模型根据森林、湿地、草原和农作物上测量的碳、水和能量通量进行了验证，其结果与基于全球地面站和卫星获取的大气二氧化碳浓度数据的独立估计值进行了验证。这项研究不仅将有助于改进全球碳循环估算和未来气候预测，而且将为政府制定与气候变化相关的政策提供科学信息。