Research and Application News
NASA aircraft concludes six-week ground validation and hydrology campaign
18 June 2014
A NASA high-altitude ER-2 aircraft concluded its participation 16 June in a study aimed at gaining a better understanding of precipitation over mountainous terrain.
The Integrated Precipitation and Hydrology Experiment, or IPHEx, field campaign is part of the ground validation effort for the Global Precipitation Measurement (GPM) mission, an international satellite mission led by NASA and the Japan Aerospace Exploration Agency. GPM's Core Observatory launched 27 Feb. 2014, to provide next-generation observations of rain and snow worldwide every three hours. But to get accurate measurements from space, scientists have to understand what is happening on the ground.
For the six-week field campaign over the southern Appalachian mountains, the NASA team and their partners at Duke University and NOAA's Hydrometeorological Test Bed set up ground stations with rain gauges and ground radar throughout western North Carolina. In addition to the ground sites, they also collected data sets from satellites and two aircraft.
Image credit: NASA/Stu Broce - Storm cell seen by NASA's ER-2 aircraft