On the Dynamics and Implications of the Relationship Between the Subtropical and Polar-Front Jet

本项目旨在更好地了解对流层极地锋和副热带急流的结构、持续性和变异性，利用时间平均数据研究它们各自的驱动机制。本文提出了一种假设，描述了这些急流对风暴路径结构和大气环流低频异常形成的影响及其动力学关系。将对干燥和潮湿的大气条件进行一系列模拟研究，并将结果用于制定预测喷射状态的分析（或半分析）理论。该项目有望通过提高对驱动大气急流的不同机制的理解，从而使科学界受益，从而能够预测它们对大尺度气候变化的影响。该项目还将涉及学生的参与，包括出席专业会议，并在课堂教学中传播其成果。

This project seeks to better understand the structure, persistence and variability of the tropospheric polar front and subtropical jet streams, investigating their separate driving mechanisms using time-averaged data. A hypothesis is put forward to describe the dynamical relationship between these jet streams and their influence on the structure of storm tracks and the formation of low-frequency anomalies in atmospheric flow. A series of modeling studies will be undertaken for both dry and moist atmospheric conditions, and the results used to formulate an analytical (or semi-analytical) theory for predicting jet regimes.This project is expected to benefit the scientific community by improving its understanding of the different mechanisms driving atmospheric jet streams, enabling the prediction of their influence on large-scale climate variability. The project will also involve student participation, including attendance at professional meetings, and dissemination of its results in classroom teaching.