NASA Uses Integrated Multi-satellitE Retrievals for GPM (IMERG) to Reveal Hurricane Willa’s Rainfall (Update: 26 October 2018) NASA has used its Integrated Multi-satellitE Retrievals for GPM (IMERG) data to calculate the amount of rainfall generated from Eastern Pacific Ocean’s Hurricane Willa. According to NASA, Tropical Depression 24E was formed on October 20, 2018, and it […]