气候变化领域集成服务门户(CCPortal): The Critical Effect of Subgrid-Scale Scheme on Simulating the Climate Impacts of Deforestation

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DOI	10.1029/2021JD035133
	The Critical Effect of Subgrid-Scale Scheme on Simulating the Climate Impacts of Deforestation
	Wang D.; Wu J.; Huang M.; Li L.Z.X.; Wang D.; Lin T.; Dong L.; Li Q.; Yang L.; Zeng Z.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:17
英文摘要	Land surface schemes (LSSs) in Earth System Models simulate how vegetation regulates land-atmosphere fluxes of heat, water, carbon, and momentum. Despite advances in the spatial resolution of regional climate modeling, significant land cover changes occured at sub-grid scale still not properly treated. Here, we investigate the response of evapotranspiration, representing the fluxes of heat and water, to deforestation in Southeast Asian Massif by employing three LSSs (Noah mosaic, Noah-MP and Community Land Model (CLM)) with different approaches in representing sub-grid variability, implemented in the Weather Research and Forecasting model. Two experiments, with and without satellite-observed deforestation, were performed for each scheme. Results show that the simulations are highly sensitive to the subgrid-scale approaches embedded in the LSSs. Compared with the observed historical climate, CLM outperforms other schemes and Noah mosaic shows the largest bias. However, if we target the simulation of the climate impacts of land cover change, the Noah mosaic scheme taking the sub-grid approach can better capture the response of evapotranspiration to deforestation. The NoahMP and CLM schemes underestimate the evapotranspiration response in the grid cells where the dominant land cover type has not changed, but overestimate the response in those grid cells with dominant type changed, which is a characteristic of dominant-grid approach. To improve our understanding of climate impacts induced by fine-scale land cover change, future efforts to better represent subgrid-scale variability and land-atmosphere flux exchange in climate models are desirable. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	climate response; coupled model; land cover change; land surface schemes; subgrid-scale variability
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237033
作者单位	School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, China; Department of Geoscience and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark; Weather Program Office, Office of Oceanic and Atmospheric Research, National Oceanic and Atmospheric Administration, Silver Spring, MD, United States; Laboratoire de Météorologie Dynamique, Centre National de la Recherche Scientifique, Sorbonne Université, Ecole Normale Supérieure, Ecole Polytechnique, Paris, France; School of Geography and Planning, Sun Yat-sen University, Guangzhou, China; Department of Earth and Space Science, Southern University of Science and Technology, Shenzhen, China; Department of Earth Sciences, Uppsala University, Uppsala, Sweden; School of Civil and Environmental Engineering, Cornell University, Ithaca, NY, United States; School of Geography and Ocean Science, Nanjing University, Nanjing, China
推荐引用方式 GB/T 7714	Wang D.,Wu J.,Huang M.,et al. The Critical Effect of Subgrid-Scale Scheme on Simulating the Climate Impacts of Deforestation[J],2021,126(17).
APA	Wang D..,Wu J..,Huang M..,Li L.Z.X..,Wang D..,...&Zeng Z..(2021).The Critical Effect of Subgrid-Scale Scheme on Simulating the Climate Impacts of Deforestation.Journal of Geophysical Research: Atmospheres,126(17).
MLA	Wang D.,et al."The Critical Effect of Subgrid-Scale Scheme on Simulating the Climate Impacts of Deforestation".Journal of Geophysical Research: Atmospheres 126.17(2021).