Tropical Cyclone Energy Dispersion and Self-Maintaining Mechanisms For Summer Synoptic-Scale Waves In The Northwest Pacific

首席调查员将研究热带气旋(TC)的启动机制及其在维持西北太平洋观测到的天气波列中的作用。他们假设，来自西北移动的TCS的Rossby波能量频散导致了赤道和东移的天气波扰动。通过对流环流反馈，这些扰动有可能形成新的热带气旋并重复循环，从而维持天气波列。由其中一个热带气旋研究所开发的三维高分辨率热带气旋模式将用于研究这一机制和相关问题。海洋模式将与TC模式相结合，以研究海洋反馈的影响。这项计划中的研究通过确定热带气旋和波浪状扰动共存的过程，有望解决热带动力学中的一个长期问题。相关问题的解决将扩大我们对热带环流系统的了解。

The principal investigators (PIs) will investigate the mechanisms of tropical cyclone (TC) initiation and their roles in the maintenance of synoptic wavetrains observed in the Northwest Pacific. They hypothesize that the Rossby wave energy dispersion from northwest moving TCs induces equatorward and eastward synoptic wave disturbances. Through convective-circulation feedback, these disturbances have the potential of forming new tropical cyclones and repeating the cycle, thus maintaining the synoptic wavetrains. A three-dimensional, high-resolution tropical cyclone model, developed by one of the PIs, will be used to study this mechanism and related issues. An ocean model will be coupled with the TC model to investigate the effects of ocean feedback. This planned research holds promise for resolving a long-standing problem in tropical dynamics by identifying the processes responsible for the coexistence of tropical cyclones and wave-like disturbances. Resolution of the pertinent issues would expand our knowledge of tropical circulation systems.