NASA | GPM: The Trouble with Irene

The video discusses the impact of Tropical Storm Irene on Vermont, highlighting the severe flooding it caused. It explains the nature of tropical cyclones, including hurricanes and typhoons, and their potential to affect regions outside the tropics. The Tropical Rainfall Measuring Mission (TRMM) is introduced as a tool for collecting global rainfall data, though it has limitations in higher latitudes. The Global Precipitation Measurement Mission (GPM) is presented as an advancement over TRMM, with improved instruments for more accurate storm tracking and prediction, aiding in better safety measures.

Explain the significance of the dual frequency precipitation radar in the GPM mission.

In what ways can GPM improve the accuracy of rainfall estimates?