Tropical cyclones (TCs) are significant drivers of moisture transport globally, influencing weather patterns and the hydrological cycle. This study quantifies anomalous moisture transport related to TCs from 1980 to 2018, revealing that TCs enhance moisture transport from evaporative regions and precipitation over sink regions. Seasonal variability in TC impact is observed, linked to TC frequency. A global decrease (~40 mm year⁻¹) in TC-induced surface freshwater fluxes is detected, potentially due to rising sea surface temperatures and a slight decrease in global TC frequency and lifetime. These findings are crucial for predicting the impacts of TCs on the hydrological cycle under future climate change.

Albenis Pérez-Alarcón, Patricia Coll-Hidalgo, José C. Fernández-Álvarez, Ricardo M. Trigo, Raquel Nieto, Luis Gimeno