一、前言近年来,中外许多从事气象工作的研究人员,已揭示了海洋对大气过程有着直接影响的重要事实,特别是在长期天气预报中,海洋的作用更是不可忽视的重要因子。人们知道,海洋和大气之间存在着连续的热量交换过程,探讨其间的变化规律,有助于了解水文气象要素的变化,对于进一步揭示和研究海洋与大气之间的相互关系有着重要意义。目前,南海区域的海—气间的相互作用的研究工作开展的不多。本文采用实际资料计算了我国南海区域(9°N—21°N,110°E—120°E)逐月海面热量平衡诸分量,对其特性进行了 I. Introduction In recent years, many researchers at home and abroad engaged in meteorological work have revealed the important fact that the ocean has a direct impact on the atmospheric processes. Especially in the long-term weather forecast, the role of the oceans and seas is an important factor that can not be ignored. It is known that there is a continuous process of heat exchange between the ocean and the atmosphere, and the study on the variation between them and the change of hydrological and meteorological elements are of great significance for further revealing and studying the relationship between the ocean and the atmosphere. At present, there is not much research on the sea-air interaction in the South China Sea. In this paper, the monthly heat balance components in the South China Sea (9◦N-21◦N, 110◦E-120◦E) are calculated by real data, and their characteristics are analyzed