中文摘要：

东亚夏季风变化对中国气候有显著影响,从能量学角度探讨季风环流的动能来源对认识季风变率及其机制至关重要。在回顾传统有效位能理论的相关研究的基础上,阐述了其在应用于区域环流有效能量转换问题分析上的局限性,介绍了适用于研究区域环流能量循环和转换的大气环流扰动位能（PPE）理论,阐述了PPE理论在研究非绝热加热和局地动能转化的优越性,总结了PPE在区域环流异常与能量转换及其在夏季风变化中的作用相关研究进展,并指出未来利用PPE研究东亚夏季风变化的重要科学问题：东亚季风区季节—年际尺度上PPE的时空变化特征、主导模态及其与东亚夏季风及下垫面强迫的关系;如何建立以PPE为纽带的东亚夏季风环流变化的能量学理论;下垫面加热如何通过PPE转换为东亚夏季风环流的扰动动能;寻找东亚夏季风的前期PPE信号,解释相关机制,探讨可预报性等。

英文摘要：

The East Asian Summer Monsoon（ EASM） exerts considerable influences on the climate in China.Studying kinetic energy sources of monsoon circulation from the perspective of energetics is critical important to understand monsoon variability and relevant mechanism. The traditional theory of Available Potential Energy（ APE）and relevant studies were reviewed,and some limitations of the APE theory in studying regional effective energy cycle and transformation were discussed. A new theory of Perturbation Potential Energy（ PPE） of atmospheric circulation,which can be applicable to the study of energy cycle and transformation of regional circulation systems,was introduced. The advantage of the PPE theory in studying regional effective energy cycle and conversion was discussed,and some advances in the role of the PPE in variability of the EASM were further reviewed. At the end,some important scientific open questions about the application of the PPE to investigations of EASM variability in future were summarized as follows： spatial-temporal characteristics and dominant modes of PPE at seasonal-interannual timescale over the EASM region,and their relationships with the EASM and lower boundary forcings; the physical processes and relevant mechanisms on how lower boundary forcings affecting the kinetic energy of EASM circulation through the key link of PPE; the preceding PPE signals associated with EASM variations,relevant underlying mechanisms,and predictability of the preceding PPE signals as well.