气候变化领域集成服务门户(CCPortal): A New Method to Construct a Horizontal Resolution-Dependent Wind Speed Adjustment Factor for Tropical Cyclones in Global Climate Model Simulations

CCPortal

DOI	10.1029/2020GL087528
	A New Method to Construct a Horizontal Resolution-Dependent Wind Speed Adjustment Factor for Tropical Cyclones in Global Climate Model Simulations
	Moon Y.; Kim D.; Camargo S.J.; Wing A.A.; Reed K.A.; Wehner M.F.; Zhao M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:11
英文摘要	A new method to construct a horizontal resolution-dependent wind speed adjustment factor for evaluating tropical cyclones (TCs) in global climate models (GCMs) is presented. In contrast to the previous studies that used idealized axisymmetric wind fields, this study analyzes 48 hr of 10-s surface wind fields from 1-km TC simulations. The adjustment factor is derived from filtering the simulated TC wind fields onto various horizontal grid spacings typical of those used in GCMs. The new adjustment factor leads to TCs with greater intensity than the existing adjustment factors for horizontal grid spacings smaller than 30 km. This difference is attributed to more realistic wind fields in the TC simulations that contain highly asymmetric, localized patches of higher wind speeds instead of axisymmetric wind fields. Applying the new adjustment factor to select GCM simulations suggests the common interpretation of low-intensity bias in GCM-simulated TCs might be slightly exaggerated. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Hurricanes; Tropics; Wind; Adjustment factors; Global climate model; Global climate model simulations; Horizontal grid spacing; Horizontal resolution; Low-intensity; Surface wind fields; Tropical cyclone; Climate models; climate modeling; global climate; simulation; surface wind; tropical cyclone; wind field; wind velocity
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170288
作者单位	Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States; Department of Earth, Ocean, and Atmospheric Science, Florida State University, Tallahassee, FL, United States; School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, United States; Lawrence Berkeley National Laboratory, Berkeley, CA, United States; NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States
推荐引用方式 GB/T 7714	Moon Y.,Kim D.,Camargo S.J.,et al. A New Method to Construct a Horizontal Resolution-Dependent Wind Speed Adjustment Factor for Tropical Cyclones in Global Climate Model Simulations[J],2020,47(11).
APA	Moon Y..,Kim D..,Camargo S.J..,Wing A.A..,Reed K.A..,...&Zhao M..(2020).A New Method to Construct a Horizontal Resolution-Dependent Wind Speed Adjustment Factor for Tropical Cyclones in Global Climate Model Simulations.Geophysical Research Letters,47(11).
MLA	Moon Y.,et al."A New Method to Construct a Horizontal Resolution-Dependent Wind Speed Adjustment Factor for Tropical Cyclones in Global Climate Model Simulations".Geophysical Research Letters 47.11(2020).