气候变化领域集成服务门户(CCPortal): Comparison of middle- and low-latitude sodium layer from a around-based lidar network, the Odin satellite, and WACCM-Na model

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DOI	10.5194/acp-22-11485-2022
	Comparison of middle- and low-latitude sodium layer from a around-based lidar network, the Odin satellite, and WACCM-Na model
	Yu, Bingkun; Xue, Xianghui; Scott, Christopher J.; Jia, Mingjiao; Feng, Wuhu; Plane, John M. C.; Marsh, Daniel R.; Hedin, Jonas; Gumbel, Jorg; Dou, Xiankang
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	11485
结束页码	11504
卷号	22 期号:17 页码:20
英文摘要	The ground-based measurements obtained from a lidar network and the 6-year OSIRIS (optical spectrograph and infrared imager system) limb-scanning radiance measurements made by the Odin satellite are used to study the climatology of the middle- and low-latitude sodium (Na) layer. Up to January 2021, four Na resonance fluorescence lidars at Beijing (40.5 degrees N, 116.0 degrees E), Hefei (31.8 degrees N, 117.3 degrees E), Wuhan (30.5 degrees N, 114.4 degrees E), and Haikou (19.5 degrees N, 109.1 degrees E) collected vertical profiles of Na density for a total of 2136 nights (19 587 h). These large datasets provide multi-year routine measurements of the Na layer with exceptionally high temporal and vertical resolution. The lidar measurements are particularly useful for filling in OSIRIS data gaps since the OSIRIS measurements were not made during the dark winter months because they utilize the solar-pumped resonance fluorescence from Na atoms. The observations of Na layers from the ground-based lidars and the satellite are comprehensively compared with a global model of meteoric Na in the atmosphere (WACCM-Na). The lidars present a unique test of OSIRIS and WACCM (Whole Atmosphere Community Climate Model), because they cover the latitude range along 120 degrees E longitude in an unusual geographic location with significant gravity wave generation. In general, good agreement is found between lidar observations, satellite measurements, and WACCM simulations. On the other hand, the Na number density from OSIRIS is larger than that from the Na lidars at the four stations within one standard deviation of the OSIRIS monthly average, particularly in autumn and early winter arising from significant uncertainties in Na density retrieved from much less satellite radiance measurements. WACCM underestimates the seasonal variability of the Na layer observed at the lower latitude lidar stations (Wuhan and Haikou). This discrepancy suggests the seasonal variability of vertical constituent transport modelled in WACCM is underestimated because much of the gravity wave spectrum is not captured in the model.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000850456000001
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/273394
作者单位	Chinese Academy of Sciences; University of Science & Technology of China, CAS; Chinese Academy of Sciences; University of Science & Technology of China, CAS; University of Reading; Chinese Academy of Sciences; University of Science & Technology of China, CAS; Chinese Academy of Sciences; University of Science & Technology of China, CAS; Chinese Academy of Sciences; University of Science & Technology of China, CAS; University of Leeds; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC); NERC National Centre for Atmospheric Science; University of Leeds; National Center Atmospheric Research (NCAR) - USA; Stockholm University; Wuhan University
推荐引用方式 GB/T 7714	Yu, Bingkun,Xue, Xianghui,Scott, Christopher J.,et al. Comparison of middle- and low-latitude sodium layer from a around-based lidar network, the Odin satellite, and WACCM-Na model[J],2022,22(17):20.
APA	Yu, Bingkun.,Xue, Xianghui.,Scott, Christopher J..,Jia, Mingjiao.,Feng, Wuhu.,...&Dou, Xiankang.(2022).Comparison of middle- and low-latitude sodium layer from a around-based lidar network, the Odin satellite, and WACCM-Na model.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(17),20.
MLA	Yu, Bingkun,et al."Comparison of middle- and low-latitude sodium layer from a around-based lidar network, the Odin satellite, and WACCM-Na model".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.17(2022):20.