The oceanic fingerprints on changing monsoons over South and Southeast Asia

随着气候变暖，水汽通量增加，干湿气象条件、季节和极端事件之间的反差扩大。这项研究将侧重于印度半岛和东南亚海域水文循环的变化，那里的季风降雨主要由来自海洋的水分提供。理解和量化海洋变暖导致的季风和热带雨带的变化至关重要，因为新的极端天气影响着数亿人。虽然在全球变暖下的水文循环的热力学响应是相对众所周知的，但大气对海洋变暖的水汽输送响应是复杂的，而且由于涉及到许多大气和海洋反馈，人们对此知之甚少。通过各种模型和观测，我们将使用和开发新的方法来探索海洋变暖如何通过热带印度洋和西太平洋上蒸发和大气水分输送的变化来改变区域水文循环--这些都是影响季风变化的海洋‘指纹’。

As moisture fluxes increase in a warming climate, the contrast between wet and dry meteorological regimes, seasons and extreme events amplifies. This research will focus on changes in the hydrological cycle of the Indian Peninsula and Maritime Southeast Asia, where monsoon rainfall is largely fed by moisture from the ocean. Understanding and quantifying changes in the monsoons and tropical rain bands driven by oceanic warming are of paramount importance as new extremes impact hundreds of millions of people. Whilst thermodynamic responses of the hydrological cycle under global warming are relatively well known, the atmospheric moisture transport response to ocean warming is complex and much less understood due to numerous atmospheric and oceanic feedbacks that are involved. Using a variety of models and observations, we will use and develop novel methods to explore how ocean warming is changing the regional hydrological cycle through shifts in evaporation and atmospheric moisture transport over the tropical Indian and Western Pacific oceans - the oceanic 'fingerprints' on changing monsoons.