水文气象学领域的水文循环研究进展

气候系统中的水循环处于不断运转演化和更新中。近年来在全球变暖和人类活动的双重影响下，水文循环发生了显著变化，引起了社会和学界的广泛关注。水文循环是气候系统的核心，是连接气候子系统的纽带，也是水文气象学研究的核心问题。近年来国内外学者采用各种观测手段及海-陆-气耦合模型检测和模拟水文循环变化，取得了丰硕成果。对其变化的物理机制和驱动因素有了深入的理解，提高了对其未来可能变化的预测预估水平。文中对最近20余年与水文气象学相关的水文循环发生的变化，引起全球、区域及流域水文循环通量变化的原因，以及未来变化的预测等问题所取得的进展做了较全面的阐述。最后对水文气象学领域水文循环变化研究应关注的问题进行了探讨。

The research progress of hydrologic cycle in hydrometeorology

The water cycle in the Earth’s climate system is constantly evolving and renewing. In recent years, under the dual influence of global warming and human activities, the hydrological cycle has undergone significant changes, which has aroused widespread concern in society and academia. The hydrological cycle is the core of hydrometeorology and climate system, which links between the climate subsystems. In recent years, scholars at home and abroad have made great achievements in understanding the characteristics of global and regional hydrological cycle changes by using various observation methods and sea-land-air coupling models. The deep understanding of the physical mechanism and driving factors of water cycle change improve the ability to predict its possible change in the future. In this paper, the changes in the hydrological cycle related to hydrometeorology in the past 20 years, causes of the changes in the global, regional and watershed hydrological cycle fluxes, and the prediction of future changes are comprehensively reviewed. Finally, some problems that should be paid attention to in future hydrological cycle change research are discussed. In particular, three questions worth further attention are emphasized. These questions are the changes of hydrological cycle elements with global warming at different spatio-temporal scales, the detection and attribution of the causes of hydrological cycle changes at different spatio-temporal scales, and the interaction and coupling model between terrestrial hydrological cycle and atmospheric water cycle.