NASA Field Campaign to Measure Appalachian Rainfall

The weather of mountain regions -- rain, ice, hail, wind, fog -- is difficult to predict. A NASA field campaign in North Carolina aims to change that.

Set up on a ranch in Rutherford County, N.C., NASA's Dual-frequency, Dual-polarization, Doppler Radar (D3R) is one of several ground radars measuring rain as it falls from clouds.
Mission: