行星波是一种广泛存在于大气中的行星尺度波动现象,纬向波数为1-5,在许多物理量中均能被观测到。行星波活动对大气中的动力学和光化学过程有着重要的影响。行星波的传播特性对整个大气层的能量耦合和输运过程也起着重要的作用。中高层大气是人类生存环境和行星际空间的过渡区域。研究中高层大气中的行星波现象将有助于更全面的认识日地空间内的能量交换过程,因此具有重要的意义。
本文利用2002-2011年TIMED (Thermosphere, Ionosphere, Mesosphere, Energetics and Dynamics)卫星上搭载的SABER(Sounding of the Atmosphere using Broadband Emission Radiometry)仪器探测得到的全球大气动力学温度数据,2002-2004年UARS (Upper Atmosphere Research Satellite)卫星上搭载的HRDI (High Resolution Doppler Interferometer)仪器测得的全球中高层大气纬向风和经向风数据,2002-2011年NCEP/NCAR (Nation...
【英文摘要】
Planetary waves (PW), with planetary scale, are common atmospheric waves. Their wavenumbers are1-5, and can be observed in various physical quantities. Planetary waves play important roles in thermodynamical and photochemical processes in the atmosphere. Propagating characteristics of planetary waves, as well, are cardinal to energy coupling and transporting in the whole atmosphere. The middle and upper atmosphere is a transition layer of the environment for human survival and the interplanetary space. Thus...