DOI: 10.1029/2017JA024855
Scopus记录号: 2-s2.0-85046265385
论文题名: Effect of Small-Scale Gravity Waves on Polar Mesospheric Clouds Observed From CIPS/AIM
作者: Gao H. ; Li L. ; Bu L. ; Zhang Q. ; Tang Y. ; Wang Z.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期: 5 起始页码: 4026
结束页码: 4045
语种: 英语
英文关键词: albedo variations
; CIPS
; gravity waves
; noctilucent clouds
; polar mesospheric clouds
英文摘要: Data from the Cloud Imaging and Particle Size experiment on the Aeronomy of Ice in the Mesosphere (AIM) satellite are employed to study the impact of small-scale gravity wave (GW) on albedo, ice water content (IWC), and particle radius (PR) of polar mesospheric clouds. Overall, 23,987 eligible GW events, with a horizontal wavelength of 20–150 km are eventually extracted from Cloud Imaging and Particle Size level 2 orbit albedo maps during 2007–2011. The overall statistical results show that when small-scale GWs travel horizontally in polar mesospheric clouds, they can amplify the albedo and IWC by a rate of 10.0–22.6%, while reducing the PR by as much as −7.01%. Owing to the strong temporal and spatial dependences, the albedo and IWC variations are larger on an average during the core of the season, while they decrease during the initial and final periods of the season. The obvious zonal asymmetries are also found. The albedo variations show a positive linear relation with the GW amplitudes in albedo, as opposed to a negative linear relation with GW horizontal wavelengths. In most of the GW events, the periodic variation in the trend of albedo exhibits an anticorrelation with that of PR. Combining previous research studies with our results, we deduce that the rapid change in particle concentration and the upward movement of water vapor by GWs may be very important aspects for explaining the influence mechanism. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113959
Appears in Collections: 气候减缓与适应
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作者单位: Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, China; School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, China; School of Science, Xi'an University of Technology, Xi'an, China
Recommended Citation:
Gao H.,Li L.,Bu L.,et al. Effect of Small-Scale Gravity Waves on Polar Mesospheric Clouds Observed From CIPS/AIM[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(5)