![]() ![]() The Core Observatory satellite has an advanced active radar instrument called the Dual-frequency Precipitation Radar (DPR) that measures both liquid and frozen water. The current constellation is anchored by the GPM Core Observatory, which was launched in 2014 by NASA and JAXA. The combined measurements from these satellites allow GPM to provide a picture of precipitation around the world every 30 minutes. Suomi NPP also provides passive microwave measurements to GPM. For example, the instruments aboard the joint NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) satellite contribute to our understanding of the ever-changing three-dimensional structure of atmospheric temperature and humidity, land cover and vegetation, and nighttime lights. A lot of the satellites providing passive microwave measurements of precipitation to the mission are tasked with different missions. "Most of the satellites contributing to GPM aren’t precipitation satellites, per se," said George Huffman, who is deputy project scientist for GPM. Together, these instruments make up the joint NASA/Japan Aerospace Exploration Agency (JAXA) Global Precipitation Measurement ( GPM) mission. This image shows precipitation rate data from NASA’s Integrated Multi-satellitE Retrievals for GPM (IMERG) for June 3, 2020.Īt any given time, instruments aboard about a dozen satellites contribute to a record of the world’s rain and snow. Instruments onboard about a dozen satellites contribute to the joint NASA, Japan Aerospace Exploration Agency (JAXA) Global Precipitation Measurement (GPM) mission. ![]()
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