气候变化领域集成服务门户(CCPortal): Study of the seasonal variation in Aeolus wind product performance over China using ERA5 and radiosonde data

CCPortal

DOI	10.5194/acp-21-11489-2021
	Study of the seasonal variation in Aeolus wind product performance over China using ERA5 and radiosonde data
	Chen S.; Cao R.; Xie Y.; Zhang Y.; Tan W.; Chen H.; Guo P.; Zhao P.
发表日期	2021
ISSN	1680-7316
起始页码	11489
结束页码	11504
卷号	21 期号:15
英文摘要	Aeolus wind products became available to the public on 12 May 2020. In this study, Aeolus wind observations, L-band radiosonde (RS) data, and the European Centre for Medium-Range Weather Forecasts fifth-generation atmospheric reanalysis (ERA5) data were used to analyze the seasonality of Aeolus wind product performance over China. Based on the Rayleigh-clear and Mie-cloudy data, the data quality of the Aeolus effective detection data was verified, and the results showed that the Aeolus data were in good agreement with the L-band RS and ERA5 data. The Aeolus data relative errors in the four regions (Chifeng, Baoshan, Shapingba, and Qingyuan) in China were calculated based on different months (July to December 2019 and May to October 2020). The relative error in the Rayleigh-clear data in summer was significantly higher than that in winter, with the mean relative error parameter in July 174g% higher than that in December. The mean random error increased by 0.97gmgs-1 in July compared with December, which also supported this conclusion. In addition, the distribution of the wind direction and high-Altitude clouds in different months (July and December) was analyzed. The results showed that the distribution of the angle between the horizontal wind direction of the atmosphere and the horizontal line of sight had a greater proportion in the high error interval (70-110g ) in summer, and this proportion was 8.14g% higher in July than in December. The cloud top height in summer was approximately 3-5gkm higher than that in winter, which might decrease the signal-To-noise ratio of Aeolus. Therefore, the wind product performance of Aeolus was affected by seasonal factors, which might be caused by seasonal changes in wind direction and cloud distribution. © 2021 The Author(s).
语种	英语
scopus关键词	data quality; detection method; radiosonde; seasonal variation; seasonality; signal-to-noise ratio; wind direction; wind measurement; China; Aeolus
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246690
作者单位	School of Optics and Photonics, Beijing Institute of Technology, Beijing, 100081, China; Meteorological Observation Center of Cma, Beijing, 100081, China
推荐引用方式 GB/T 7714	Chen S.,Cao R.,Xie Y.,et al. Study of the seasonal variation in Aeolus wind product performance over China using ERA5 and radiosonde data[J],2021,21(15).
APA	Chen S..,Cao R..,Xie Y..,Zhang Y..,Tan W..,...&Zhao P..(2021).Study of the seasonal variation in Aeolus wind product performance over China using ERA5 and radiosonde data.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(15).
MLA	Chen S.,et al."Study of the seasonal variation in Aeolus wind product performance over China using ERA5 and radiosonde data".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.15(2021).