气候变化领域集成服务门户(CCPortal): Assessing the sensitivity of land-atmosphere coupling strength to boundary and surface layer parameters in the WRF model over Amazon

CCPortal

DOI	10.1016/j.atmosres.2019.104738
	Assessing the sensitivity of land-atmosphere coupling strength to boundary and surface layer parameters in the WRF model over Amazon
	Wang C.; Qian Y.; Duan Q.; Huang M.; Berg L.K.; Shin H.H.; Feng Z.; Yang B.; Quan J.; Hong S.; Yan J.
发表日期	2020
ISSN	0169-8095
卷号	234
英文摘要	Modeling tools can be used to diagnose regional land-atmosphere (L-A) coupling strength in the absence of sufficient observations, but subject to uncertainties associated with parameters in model physical parameterizations. Different sensitivity analysis (SA) approaches may lead to different conclusions about the underlying sensitivities. In this study, we quantify simulation uncertainties related to parameter perturbations, and use different approaches to conduct parameter SA on the WRF model pertaining to L-A coupling strength for simulations over the Amazon region. A total of twenty parameters from the Yonsei University (YSU) planetary boundary layer (PBL) and the revised MM5 surface layer (SL) schemes were selected in this analysis. Three different SA methods, the Morris One-at-A-Time (MOAT) method, the Multivariate Adaptive Regression Splines (MARS) method, and the Sobol’ method, were employed to analyze seven WRF-simulated variables and five L-A coupling metrics. Results show that 1) parameter perturbations cause large simulation uncertainties which are comparable to those in the observations; 2) three different SA methods give consistent L-A coupling strength outcomes; 3) six out of the twenty parameters contribute 80%–95% of the total variance in the metrics analyzed, and first-order effects dominate over interaction effects; 4) the twelve variables/metrics of interest show similar sensitivity patterns to the selected parameters, which is consistent across all the methods used. Physical mechanisms for how the sensitive parameters act in determining the L-A coupling strength and associated variables also are illustrated. Our results will help quantifying L-A coupling strength and establishing a basis for parameter calibration over the Amazon region. © 2019
英文关键词	Amazon region; L-A coupling strength; Model uncertainties; Parameter sensitivity analysis; WRF model
学科领域	Boundary layers; Planetary surface analysis; Sensitivity analysis; Amazon region; Coupling strengths; Model uncertainties; Parameter sensitivity analysis; WRF Model; Uncertainty analysis; boundary layer; climate modeling; parameterization; sensitivity analysis; surface layer; uncertainty analysis; weather forecasting; Amazonia
语种	英语
scopus关键词	Boundary layers; Planetary surface analysis; Sensitivity analysis; Amazon region; Coupling strengths; Model uncertainties; Parameter sensitivity analysis; WRF Model; Uncertainty analysis; boundary layer; climate modeling; parameterization; sensitivity analysis; surface layer; uncertainty analysis; weather forecasting; Amazonia
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120534
作者单位	Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystem, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, College of Hydrology and Water Resources, Hohai University, Nanjing, Jiangsu 210098, China; UCAR, Cooperative Programs for the Advancement of Earth System Science and NOAA, Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; School of Atmospheric Sciences, Nanjing University, Nanjing, China; Institute of Urban Meteorology, China Meteorological Administration, Beijing, 100089, China; Korea Institute of Atmospheric Prediction Systems, Seoul, South Korea
推荐引用方式 GB/T 7714	Wang C.,Qian Y.,Duan Q.,et al. Assessing the sensitivity of land-atmosphere coupling strength to boundary and surface layer parameters in the WRF model over Amazon[J],2020,234.
APA	Wang C..,Qian Y..,Duan Q..,Huang M..,Berg L.K..,...&Yan J..(2020).Assessing the sensitivity of land-atmosphere coupling strength to boundary and surface layer parameters in the WRF model over Amazon.Atmospheric Research,234.
MLA	Wang C.,et al."Assessing the sensitivity of land-atmosphere coupling strength to boundary and surface layer parameters in the WRF model over Amazon".Atmospheric Research 234(2020).