空间科学学报2017，Vol.37Issue(3)：284-290,7.DOI:10.11728/cjss2017.03.284
中国廊坊中间层和低热层大气平均风观测模拟
Observations and Simulations of the Mean Winds in Mesosphere and Lower Thermosphere over Langfang of China
摘要
Abstract
By use of the observations of the meteor radar located at Langfang,China (39.4°N,116.7°E),the seasonal variation of mean winds in the Mesospheric and Lower Thermospheric (MLT) layer at 80～100km altitude over Langfang are studied.The time range of the observations is from 1 April 2012 to 31 March 2013.The results show that both the mean zonal winds and the mean meridional winds have obvious seasonal variations.In winter,westward winds prevail in the MLT,which are strongest in mesopause and decrease with increasing altitude.In summer,eastward winds dominate in mesosphere and decrease with increasing altitude,then turn to the strong westward winds at 82 km altitude in lower thermosphere.Usually,the mean meridional winds are southward in summer and northward in winter.The wind evolutions have the transition features in spring and autumn.The above main seasonal variations of mean winds are captured largely by the simulation of WACCM4 model and HWM93 model.However,WACCM overestimates the wind velocities,and HWM93 underestimates the winds velocities.关键词
流星雷达/大气平均风场/中间层和低热层/WACCM模式/HWM模式Key words
Meteor Radar (MR)/Mean winds/Mesospheric and lower thermospheric/WACCM model/HWM model分类
天文与地球科学引用本文复制引用
杨钧烽,肖存英,胡雄,徐轻尘..中国廊坊中间层和低热层大气平均风观测模拟[J].空间科学学报,2017,37(3):284-290,7.基金项目
国家重点研发计划项目(2016YFB0501503)和国家自然科学基金项目(41104099)共同资助 （2016YFB0501503）
