气候变化领域集成服务门户(CCPortal): Land Use and Land Cover Change Strongly Modulates Land-Atmosphere Coupling and Warm-Season Precipitation Over the Central United States in CESM2-VR

CCPortal

DOI	10.1029/2019MS001925
	Land Use and Land Cover Change Strongly Modulates Land-Atmosphere Coupling and Warm-Season Precipitation Over the Central United States in CESM2-VR
	Devanand A.; Huang M.; Lawrence D.M.; Zarzycki C.M.; Feng Z.; Lawrence P.J.; Qian Y.; Yang Z.
发表日期	2020
ISSN	19422466
卷号	12 期号:9
英文摘要	Prior research indicates that land use and land cover change (LULCC) in the central United States has led to significant changes in surface climate. The spatial resolution of simulations is particularly relevant in this region due to its influence on model skill in capturing mesoscale convective systems (MCSs) and on representing the spatial heterogeneity. Recent advances in Earth system models (ESMs) make it feasible to use variable resolution (VR) meshes to study regional impacts of LULCC while avoiding inconsistencies introduced by lateral boundary conditions typically seen in limited area models. Here, we present numerical experiments using the Community Earth System Model version 2–VR to evaluate (1) the influence of resolution and land use on model skill and (2) impacts of LULCC over the central United States at different resolutions. These simulations are configured either on the 1° grid or a VR grid with grid refinement to 1/8° over the contiguous United States for the period of 1984–2010 with two alternative land use data sets corresponding to the preindustrial and present day states. Our results show that skill in simulating precipitation over the central United States is primarily dependent on resolution, whereas skill in simulating 2-m temperature is more dependent on accurate land use. The VR experiments show stronger LULCC-induced precipitation increases over the Midwest in May and June, corresponding to an increase in the number of MCS-like features and a more conductive thermodynamic environment for convection. Our study demonstrates the potential of using VR ESMs for hydroclimatic simulations in regions with significant LULCC. ©2020. The Authors.
语种	英语
scopus关键词	Climate change; Storms; Different resolutions; Land use and land cover change; Land-atmosphere couplings; Lateral boundary conditions; Mesoscale Convective System; Numerical experiments; Spatial heterogeneity; Warm season precipitation; Land use; boundary condition; hydrometeorology; land cover; land use change; land-atmosphere interaction; precipitation (climatology); spatial resolution; thermodynamics; Midwest; United States
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156637
作者单位	Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States; Interdisciplinary Programme in Climate Studies, Indian Institute of Technology, Bombay, India; School of Civil, Environmental and Mining Engineering, University of Adelaide, Australia; Office of Science and Technology Integration, National Weather Service, National Oceanic and Atmospheric Administration, United States; National Center for Atmospheric Research, Boulder, CO, United States; Department of Meteorology and Atmospheric Science, Penn State University, State College, PA, United States
推荐引用方式 GB/T 7714	Devanand A.,Huang M.,Lawrence D.M.,et al. Land Use and Land Cover Change Strongly Modulates Land-Atmosphere Coupling and Warm-Season Precipitation Over the Central United States in CESM2-VR[J],2020,12(9).
APA	Devanand A..,Huang M..,Lawrence D.M..,Zarzycki C.M..,Feng Z..,...&Yang Z..(2020).Land Use and Land Cover Change Strongly Modulates Land-Atmosphere Coupling and Warm-Season Precipitation Over the Central United States in CESM2-VR.Journal of Advances in Modeling Earth Systems,12(9).
MLA	Devanand A.,et al."Land Use and Land Cover Change Strongly Modulates Land-Atmosphere Coupling and Warm-Season Precipitation Over the Central United States in CESM2-VR".Journal of Advances in Modeling Earth Systems 12.9(2020).