气候变化领域集成服务门户(CCPortal): Technical note: First comparison of wind observations from ESA's satellite mission Aeolus and ground-based radar wind profiler network of China

CCPortal

DOI	10.5194/acp-21-2945-2021
	Technical note: First comparison of wind observations from ESA's satellite mission Aeolus and ground-based radar wind profiler network of China
	Guo J.; Liu B.; Gong W.; Shi L.; Zhang Y.; Ma Y.; Zhang J.; Chen T.; Bai K.; Stoffelen A.; De Leeuw G.; Xu X.
发表日期	2021
ISSN	1680-7316
起始页码	2945
结束页码	2958
卷号	21 期号:4
英文摘要	Aeolus is the first satellite mission to directly observe wind profile information on a global scale. After implementing a set of bias corrections, the Aeolus data products went public on 12 May 2020. However, Aeolus wind products over China have thus far not been evaluated extensively by ground-based remote sensing measurements. In this study, the Mie-cloudy and Rayleigh-clear wind products from Aeolus measurements are validated against wind observations from the radar wind profiler (RWP) network in China. Based on the position of each RWP site relative to the closest Aeolus ground tracks, three matchup categories are proposed, and comparisons between Aeolus wind products and RWP wind observations are performed for each category separately. The performance of Mie-cloudy wind products does not change much between the three matchup categories. On the other hand, for Rayleigh-clear and RWP wind products, categories 1 and 2 are found to have much smaller differences compared with category 3. This could be due to the RWP site being sufficiently approximate to the Aeolus ground track for categories 1 and 2. In the vertical, the Aeolus wind products are similar to the RWP wind observations, except for the Rayleigh-clear winds in the height range of 0-1 km. The mean absolute normalized differences between the Mie-cloudy (Rayleigh-clear) and the RWP wind components are 3.06 (5.45), 2.79 (4.81), and 3.32 (5.72) m/s at all orbit times and ascending and descending Aeolus orbit times, respectively. This indicates that the wind products for ascending orbits are slightly superior to those for descending orbits, and the observation time has a minor effect on the comparison. From the perspective of spatial differences, the Aeolus Mie-cloudy winds are consistent with RWP winds in most of east China, except in coastal areas where the Aeolus Rayleigh-clear winds are more reliable. Overall, the correlation coefficient R between the Mie-cloudy (Rayleigh-clear) wind and RWP wind component observation is 0.94 (0.81), suggesting that Aeolus wind products are in good agreement with wind observations from the RWP network in China. The findings give us sufficient confidence in assimilating the newly released Aeolus wind products in operational weather forecasting in China. © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	profiler; radar; remote sensing; satellite mission; wind profile; 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/247108
作者单位	State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, 100081, China; State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS), Wuhan University, Wuhan, 430019, China; Meteorological Observation Centre, China Meteorological Administration, Beijing, 100081, China; Hubei Subsurface Multi-Scale Imaging Key Laboratory, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, 430074, China; School of Geographic Sciences, East China Normal University, Shanghai, 200241, China; Royal Netherlands Meteorological Institute (KNMI), 3730 AE De Bilt, Netherlands; China Meteorological Administration, Beijing, 100081, China
推荐引用方式 GB/T 7714	Guo J.,Liu B.,Gong W.,et al. Technical note: First comparison of wind observations from ESA's satellite mission Aeolus and ground-based radar wind profiler network of China[J],2021,21(4).
APA	Guo J..,Liu B..,Gong W..,Shi L..,Zhang Y..,...&Xu X..(2021).Technical note: First comparison of wind observations from ESA's satellite mission Aeolus and ground-based radar wind profiler network of China.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(4).
MLA	Guo J.,et al."Technical note: First comparison of wind observations from ESA's satellite mission Aeolus and ground-based radar wind profiler network of China".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.4(2021).