Linear theory of the response of Na mixing ratio to gravity waves  

作　　者：XU Jiyao, JI Qiao & WU Mingliang Laboratory for Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080, China Correspondence should be addressed to Xu Jiyao (e-mail: xurrjy@ center.cssar.ac.cn) 

出　　处：《Chinese Science Bulletin》2003年第15期1630-1633,共4页

基　　金：supported by the National Research Project of China(Grant No.G2000078407);the National Natural Science Foundation of China(Grant No.40225011)

摘　　要：The influence of gravity waves on the sodium layer is studied by using a linear photochemical-dynamical coupling gravity wave model. The model includes the background photochemistry and the photochemical reactions in the sodium layer. The amplitude and phase difference of the response of sodium mixing ratio to gravity waves are calculated. The results indicate that the lower part of sodium layer is the most sensitive region responding to gravity waves. The perturbation of sodium mixing ratio is in phase with temperature in the lower part of the layer. However, it is out of phase with temperature fluctuation in the upper part.The influence of gravity waves on the sodium layer is studied by using a linear photochemical-dynamical coupling gravity wave model. The model includes the background photochemistry and the photochemical reactions in the sodium layer. The amplitude and phase difference of the response of sodium mixing ratio to gravity waves are calculated. The results indicate that the lower part of sodium layer is the most sensitive region responding to gravity waves. The perturbation of sodium mixing ratio is in phase with temperature in the lower part of the layer. However, it is out of phase with temperature fluctuation in the upper part.

关 键 词：线性理论 钠 重力波 光化学 大气层 

分 类 号：P312[天文地球—固体地球物理学]