Understanding moisture transport is crucial for understanding continental precipitation and extreme precipitation events, which are expected to become substantially more frequent under global warming conditions. In this work, the influence of major global moisture sources on extreme continental precipitation during the peak precipitation month is estimated and compared with climatological patterns. The results show a general change in the pattern of contribution of the primary source of precipitation (the source with the highest contribution) during extreme precipitation events. Most primary sources show a general reduction in their area of influence and a notable reduction in their contribution to the total precipitation.

了解水汽传输对于了解大陆性降水和极端降水事件至关重要，在全球变暖条件下，预计这些事件将更加频繁。在这项工作中，估算了全球主要水分源对峰值降水月份内极端大陆降水的影响，并将其与气候模式进行了比较。结果表明，极端降水事件期间主要降水来源（贡献最大的来源）的贡献方式发生了总体变化。大多数主要来源显示出其影响范围普遍减少，并且对总降水量的贡献也明显减少。