HAWAII'S HICKAM AIR FORCE BASE HOSTS NASA HIGH-FLYING ER-2 April 7, 2000 Release: 00-37 Printer Friendly Version
Hickam Air Force Base, Oahu, Hawaii, is hosting one of NASA's Airborne Science ER-2 research aircraft. The aircraft is one of two based at the NASA Dryden Flight Research Center, Edwards, Calif. The April deployment is the first in which Hickam will be the primary base of operations. The ER-2 last flew science missions from Hickam in 1987. The aircraft's last photo/sensing mission to Hawaii was September 1992, when it conducted a damage assessment after Hurricane Iniki.
For this campaign, the ER-2 carries two digital scanners and two film cameras. The Airborne Visible and Infra-Red Imaging Spectrometer (AVIRIS) instrument is a hyper-spectral scanner, which looks downward at the earth simultaneously in 224 spectral bands or channels. Different spectral bands can be used to study geology, agriculture, forestry, land use, atmospheric composition or weather.
The second scanner is the MODIS Airborne Simulator. It is a multi-spectral scanner whose spectral bands have been chosen to match those of a satellite sensor, the MODerate resolution Imaging Spectrometer (MODIS). The MODIS launched last December on NASA's Terra Satellite and will be used to study the Earth's global energy balance and contribute to climate change studies. The instruments flying on the ER-2 will be used to calibrate and verify the satellite's data.
The data gathered by the ER-2's instruments will be used to help map the extent and distribution of coral reefs in the greater Hawaiian chain, to study volcanic flows and gas plumes over Hawaii's big island and track land use changes in the eight largest islands. Weather permitting, flights will occur daily for approximately three weeks.
The ER-2 aircraft typically flies at 65,000 feet. Most ER-2 missions last about six hours with ranges of about 2,200 nautical miles. It is 63 feet long, with a wingspan of 104 feet. Cruising speeds are 410 knots, or 467 miles per hour, at altitude. A single General Electric F-118 turbofan engine powers the ER-2. It is capable of carrying a payload of instruments or experiments: in a nose bay, the main equipment bay behind the cockpit, two wing-mounted superpods, and small underbody and trailing edge pods.
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