Coordination of WAGS-4 Campaign: Planning, Observation and Data Analysis

近年来越来越清楚的是，对电离层-热层动力学的定量研究可以通过全球多技术调查来最有效地进行。观测技术和建模工作已经发展到这样一个水平，这些研究现在是可行的。事实上，该国的Cedar倡议以及南太地科学委员会的国际世界电离层热层研究(WITS)和日地能源计划(STEP)正是为了应对这一挑战而规划的。世界声学重力研究(WAGS)是这些计划的重要组成部分。声重力波和与之相关的行进电离层扰动(TID)一直是许多理论和实验研究的主题。海因斯(1960)发表的一系列具有里程碑意义的理论论文。由于极光产生的大尺度TID具有很大的空间相干性，如果想要研究与这些波相关的总体源-生成-传播机制，就必须进行世界范围的观测活动。WAGS就是为此目的而设计的。

It has become increasingly clear in recent years that the quantitative study of ionosphere-thermosphere dynamics can be most effective through global, multitechnique investigations. Observational techniques and modeling efforts have progressed to such a level that those studies are now feasible. Indeed, the CEDAR initiative in this country as well as the international World Ionosphere Thermosphere Study (WITS) and Solar-Terrestrial Energy Program (STEP) of SCOSTEP have been planned exactly in response to such a challenge. The World Acoustic Gravity Study (WAGS) is an important part of these programs. Acoustic gravity waves, and the associated traveling ionospheric disturbances (TIDS) have been the subject of many theoretical and experimental studies. A series of landmark theoretical papers by Hines (1960). Because of the large spatial coherence of the auroral- generated large-scale TIDs, it is imperative that world wide observational campaigns be conducted if one wants to study the overall source-generation-propagation mechanisms associated with these waves. WAGS was designed for this purpose.