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题名: Persistent longitudinal variations in 8years of CIPS/AIM polar mesospheric clouds
作者: Liu, Xiao; Yue, Jia; Xu, Jiyao; Yuan, Wei; Russell, James M., III; Hervig, M. E.; Nakamura, Takuji
作者部门: 空间科学部
通讯作者: Liu, X (reprint author), Henan Normal Univ, Sch Math & Informat Sci, Henan Engn Lab Big Data Stat Anal & Optimal Contr, Xinxiang, Peoples R China. ; Liu, X (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.
刊名: JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN号: 2169-897X
出版日期: 2016
卷号: 121, 期号:14, 页码:8390-8409
收录类别: SCI
项目资助者: Chinese Academy of Sciences [KZZD-EW-01-2] ; National Science Foundation of China [41374158, 41574143, 41229001, 41331069] ; Educational Commission of Henan Province of China [17HASTIT010, 2014GGJS-047] ; Excellent Young Teachers of Henan Normal University [2014YQ0006] ; National Important Basic Research Project [2011CB811405] ; Specialized Research Fund ; Open Research Program of the State Key Laboratory of Space Weather ; High Performance Computing Center of Henan Normal University ; Numerical Forecast Modeling R&D and VR System of State Key Lab. of Space Weather and Special HPC work stand of the Chinese Meridian Project
英文摘要: The Cloud Imaging and Particle Size (CIPS) instrument on the Aeronomy of Ice in the Mesosphere (AIM) satellite provides an opportunity to study the longitudinal variation in polar mesospheric cloud (PMC). We examined the longitudinal variation in PMC albedo using 8years (2007-2014) of observations from the CIPS instrument. The results show that the PMC albedo in the Southern Hemisphere (SH), especially in the latitude band of 80 degrees S-85 degrees S, is persistently low (similar to 65% relative to the rest of the hemisphere) within 60 degrees W to 150 degrees W longitude. In the Northern Hemisphere (NH), however, PMC albedo is found to be relatively zonally asymmetry. Harmonic analyses show that the persistent longitudinal variation in the SH PMC albedo is due to zonal wave numbers 1 through 4 (WN1-WN4) processes with minima in the longitude range of 60 degrees W-150 degrees W. The influence of temperature and H2O on the longitudinal variation of the PMC albedo is discussed based on results obtained using a simple 0-D PMC model and temperature from the Microwave Limb Sounder (MLS) and the Sounding of the Atmosphere with Broadband Emission Radiometry (SABER) and H2O from MLS. The modeled region of low ice mass in the SH is generally consistent with that of low PMC albedo seen in CIPS. Tidal analyses using the SABER temperatures indicate that the nonmigrating semidiurnal tides with modes of S0, W1, and E1 might be the main drivers of the persistent longitudinal variations of PMC albedo in the SH. Nonmigrating tides are much weaker in the NH and consistent with the observed lack of longitudinal variability in PMC albedo.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/5677
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