NASA’s Gulfstream III environmental research aircraft returned to the Dryden Aircraft Operations Facility in Palmdale, Calif., Jan. 14 following an eight-day deployment to Hawaii. Five science flights totaling more than 31 hours allowed scientists to collect radar imaging data about volcanoes intended to help scientists better understand processes occurring under Earth’s surface.
The airborne study was conducted from an altitude of 40,000 feet using the Uninhabited Aerial Vehicle Synthetic Aperture Radar, or UAVSAR, developed by NASA’s Jet Propulsion Laboratory mounted in a pod under the aircraft. The study focused on the Kilauea volcano on the Big Island of Hawaii, the state’s most active volcano, although science data flight lines were flown over nearby volcanoes including Mauna Loa, Mauna Kea, Hualalai and Kohala.
NASA research pilot Troy Asher reported that good weather and the reliability of the aircraft and the radar equipment enabled the research team to accomplish virtually all of their planned science data collection flight lines.
“We had one day off, and used that time to do a little touring on the island to see firsthand some of what we were observing from 40,000 feet,” he added.
The UAVSAR uses a technique called interferometry that sends pulses of microwave energy from the sensor on the aircraft to the ground to detect and measure very subtle deformations in Earth’s surface. The radar data collected during the mission will be analyzed over the next few weeks to determine if significant ground movement or deformation is occurring in the active volcanic areas.
The UAVSAR’s first data acquisition over this region took place in January 2010. Assisted by a Platform Precision Autopilot designed by engineers at NASA’s Dryden Flight Research Center, flights over the volcano were repeated in May 2011. Those two sets of observations successfully imaged the surface deformation caused by the March 2011 fissure eruption in Kilauea’s east rift zone.
- NASA Plane Returns to the Big Island to Help Study Voclanoes (damontucker.com)
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- NASA Airborne Mission Maps Remote, Deteriorating Glaciers (yubanet.com)
- NASA continues critical survey of Antarctica’s changing ice (eurekalert.org)
- Astronomy: Ready for boarding – finally (nature.com)
Filed under: aloha, Announcements, Big Island, Earthquakes, Environment, Hawaii, Hawaiian, National Affairs, Something New?, Technology Tagged: | Hawaiʻi Volcanoes National Park, Hawaiian Volcano Observatory, Kilauea, Mauna Loa, NASA, NASA GIII