Oceanographers investigate southern Brazil's catastrophic flooding

Devastating floods reshaped southern Brazil's landscape in May 2024. Rio Grande do Sul—the fifth most populous state in Brazil—was hit with unprecedented rainfall, affecting 2.3 million people. A new study led by the Woods Hole Oceanographic Institution (WHOI) published in Geophysical Research Letters uses satellite data to help uncover what caused the deluges and examine how it impacted some of the state's most vulnerable residents.