中文核心期刊
CNKI期刊全文数据库
中国科学引文数据库(CSCD)源期刊
中国科技论文统计源期刊
万方数据知识服务平台
英国《科学文摘》(SA)
美国化学文摘(CA)
俄罗斯《文摘杂志》(AJ)
德国《天文学与天体物理学文摘》(AAA)
英国《中国天文学和天体物理学》(SCI收录)全文摘译期刊之一
《中国学术期刊文摘》
《中国物理文摘》
《中国天文学文摘》

• 论文 • Previous Articles     Next Articles

The Investigation of Gravity Wave Activities on Mesopause Over Wuhan by Sodium Lidar

SONG Juan, CHENG Xuewu, YANG Guotao, CHANG Qihai, GONG Shunsheng   

  1. 1. Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071;2.Graduate School, Chinese Academy of Sciences
  • Received:1900-01-01 Revised:1900-01-01 Online:2005-11-15 Published:2005-11-15

Abstract: The gravity wave activities were investigated based on the data of 26 observation nights from WIPM sodium fluorescence lidar data-base of year 1999 to now. The result shows, the gravity wave activities are very frequent in the mesopause region over Wuhan: in total 185.5 observation hours during 26 nights, 124 gravity wave activities were observed,so that the occurrence frequency of gravity wave activities is about 0.7 activity per hour, and the occurrence has a relationship with local time. The wavelengths of the waves were mainly distributed from 3 km to 7 km, which is consistent with the result reported,and the phase velocities of the waves were maily distributed from 0.1 m/s to 0.5 m/s, which much shower than the reported result. Another feature of the gravity wave activities over Wuhan is that the multiwave activities were much greater than singlewave ones, and the ratio is 3:2. The typical results of the gravity wave propagation and breaking were given through the time and space sequence of relative density disturbence. The gravity wave parameters were also extracted form part of our data throuth the monowave model method.

Key words: Space robot system with dual-arms, Thermal control, Fluid loop, Heat exchanger