气候变化领域集成服务门户(CCPortal): Assessment of climate change impact over California using dynamical downscaling with a bias correction technique: method validation and analyses of summertime results

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DOI	10.1007/s00382-020-05200-x
	Assessment of climate change impact over California using dynamical downscaling with a bias correction technique: method validation and analyses of summertime results
	Zhao Z.; Di P.; Chen S.-H.; Avise J.; Kaduwela A.; DaMassa J.
发表日期	2020
ISSN	0930-7575
起始页码	3705
结束页码	3728
卷号	54
英文摘要	This study explores climate-change influences on future air pollution-relevant meteorological variables (e.g., temperature, wind, humidity, boundary layer heights) and atmospheric phenomena (e.g., heat wave, marine air penetration, droughts) over California by the 2050s. The Community Earth System Model simulation results from Coupled Model Intercomparison Project Phase 5 under an emission scenario that most closely aligns with California’s climate change goals were bias-corrected with respect to North American Regional Reanalysis data to reduce biases in both the climatological mean and inter-annual variations. The bias-corrected ~ 1° × 1° meteorological fields were dynamically downscaled to a resolution of 4 km × 4 km over California using the Weather Research and Forecasting model. This study focuses on summertime results, while the analysis of wintertime results will be presented in a separate paper. Our downscaled results projected a future increase of approximately 1 K in summer mean surface temperature over California under this single future climate realization. The temperature increase is larger in the nighttime than in the daytime. Water vapor mixing ratio is also projected to increase over California and off the coast. There are discernable decreases in boundary layer heights over the mountain ranges surrounding the central valley of California, while increases in boundary layer heights are observed over other regions in California. The number and duration of heat wave events are projected to increase substantially over the most populated parts of the State. The occurrence of marine air penetration events over the northern California is also projected to increase in the future. © 2020, The Author(s).
英文关键词	California; Climate change; Dynamical downscaling; Heat wave; Marine air penetration
语种	英语
scopus关键词	annual variation; boundary layer; climate change; climate effect; climate modeling; climate prediction; correction; downscaling; summer; California; United States
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145506
作者单位	Modeling and Meteorology Branch, Air Quality Planning and Science Division, California Air Resources Board, California Environmental Protection Agency, Sacramento, CA, United States; Department of Land, Air, and Water Resources, University of California, Davis, CA, United States; Department of Civil and Environmental Engineering, Washington State University, Pullman, WA, United States; Air Quality Research Center, University of California, Davis, CA, United States
推荐引用方式 GB/T 7714	Zhao Z.,Di P.,Chen S.-H.,et al. Assessment of climate change impact over California using dynamical downscaling with a bias correction technique: method validation and analyses of summertime results[J],2020,54.
APA	Zhao Z.,Di P.,Chen S.-H.,Avise J.,Kaduwela A.,&DaMassa J..(2020).Assessment of climate change impact over California using dynamical downscaling with a bias correction technique: method validation and analyses of summertime results.Climate Dynamics,54.
MLA	Zhao Z.,et al."Assessment of climate change impact over California using dynamical downscaling with a bias correction technique: method validation and analyses of summertime results".Climate Dynamics 54(2020).