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New sensor will measure Earth's energy loss NASA NEWS RELEASE Posted: June 11, 2005 NASA successfully tested a new instrument that will provide scientists with unprecedented measurements to further the agency's understanding of climate change. Launched June 7 aboard a stratospheric balloon at Fort Sumner, N.M., Far-Infrared Spectroscopy of the Troposphere (FIRST) is a prototype infrared sensor developed by Utah State University's Space Dynamics Laboratory (SDL), North Logan, and NASA's Langley Research Center, Hampton, Va. FIRST's measurements of the cooling and heating of the atmosphere will help researchers learn more about how the Earth gains and loses energy. "FIRST opens up an entire new window for us to observe the Earth and its atmosphere," said Marty Mlynczak, principal investigator for FIRST and senior research scientist at NASA Langley. The team started receiving data shortly after FIRST was launched aboard a stratospheric balloon, which is 10 times larger than a normal hot air balloon. During the launch, the balloon lifted the FIRST instrument approximately 20 miles into the atmosphere, where it was able to take measurements. The FIRST instrument returned energy measurements ranging from 10 to 100 microns in wavelength. One micron equals one thousandth of a millimeter; one human hair is about 50 microns wide. Current infrared sensors in space do not perform measurements beyond 15 microns. Scientists believe that the Earth loses half its energy between 15 to 100 microns. "This sensor can measure a range of the spectral region that has not been measured before," said SDL's Stan Wellard, FIRST program manager. The initial data was received in near real-time. Following the flight, the instrument will be recovered, and NASA and SDL will further analyze the data. Once FIRST demonstrates that it can make the necessary measurements, the hope is for development of a satellite version. "This science has come to the forefront," said Mlynczak. "We look forward to taking this technology into space." The FIRST team consists of NASA Langley, SDL and the Smithsonian Astrophysics Observatory at Harvard University, Cambridge, Mass., who provided a key optical element, technical support for the instrument, and expertise for the balloon launch. The project is part of the NASA Instrument Incubator Program managed by the NASA Earth-Sun System Science Technology Office. This low-cost program develops prototypes to remove technical risk for new instruments designed for use on satellites. |
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As excitement builds for the first space shuttle launch in over two years, this comprehensive video selection captures the major pre-flight events for Discovery and her seven astronauts.
A camera on the International Space Station captured this view of Tropical Storm Arlene moving into the Gulf of Mexico as the orbiting complex flew above the weather system at 2:33 p.m. EDT on Friday, June 10. (3min 06sec file)
NASA's space-based research into how hurricanes form and move is explained in this narrated movie from the agency. (8min 02sec file)
Dr. Bonnie Buratti, team member of the Cassini visual and infrared mapping spectrometer, discusses a possible volcano discovered on Saturn's moon Titan. (2min 12sec file)
The co-chairs and other members of the Stafford-Covey Return to Flight Task Group, which is overseeing NASA's space shuttle program, hold a news conference in Houston on June 8.
Technicians ready space shuttle Discovery for demating from the external fuel tank inside the Vehicle Assembly Building. (1min 24sec file)
Space shuttle Discovery is demated from its original external fuel tank and solid rocket boosters. The ship is lowered to its transport trailer in the Vehicle Assembly Building. (2min 38sec file)