空天过渡区大气动力学研究重要进展
Major Advances in Aerospace Transition Zone Atmospheric Dynamics Research
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空天过渡区是指传统航空活动和航天活动过渡区域, 通常指距离地表50~150 km的大气圈层. 近年来, 随着空天一体化空间环境应用服务加快布局, 空天过渡区大气环境认知和建模预报研究愈来愈受到多学科广泛重视, 空天过渡区大气扰动微物理过程和机理研究取得了较为显著的进展. 本文梳理了近年空天过渡区大气动力学研究现状, 简述了太阳/太阳风–磁层–空天过渡区的耦合链式过程中, 太阳辐射和极区粒子沉降对空天过渡区大气环境影响的研究进展. 从重力波、行星波、潮汐波和典型低层大气活动四个角度出发, 重点分析和总结地球活动/低层大气扰动对空天过渡区大气环境影响的研究进展, 进而展望空天过渡区未来的发展前景及需要解决的几个关键问题, 为大气科学和空间物理领域的研究提供一定参考.Abstract: The transitional zone bridging the domains of astronautics and aeronautics refers to the region between traditional aviation and space activities, specifically the atmospheric layer from 20 km to 150 km above the Earth’s surface. With the accelerated development of aerospace integrated space environment services, the modeling and forecasting of atmospheric dynamics in the aerospace transition zone have received increasing attention from various disciplines, while significant progress has been made on the microphysical processes and mechanisms of the aerospace transition zone atmospheric disturbances. This study reviews recent advances in atmospheric dynamics research for the aerospace transition zone. It summarizes studies on how solar radiation and polar particle precipitation affect this region within the Sun-solar wind-magnetosphere coupling chain. Then, we focus on summarizing the research progress of the coupling between Earth activities-lower atmosphere and the aerospace transition zone by four aspects of gravity waves, planetary waves, tidal waves, and typical lower atmospheric activities. Finally, it looks forward to the future development prospects of the aerospace transition zone and several key issues that need to be solved, providing a certain reference for scholars in atmospheric science and space physics.
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