Flightlines: Overview

Simultaneously to ground measurements, low and high altitudes microwave airborne data will be collected in order to support the development of the combined active/passive algorithms, a key element of the SMAP mission. The airborne data will be acquired using active and passive instruments including NASA’s L-band Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) flown in a Gulfstream III piloted aircraft, and the Passive/Active L-band Sensor (PALS) on board the Twin Otter International.