HR: 0800h
AN: SA51A-05    [Abstracts]
TI: Unique Artificial Optical Emission Experiments on the Second Electron Gyroharmonic in the Ionosphere over Alaska
AU: * Kosch, M
EM: m.kosch@lancaster.ac.uk
AF: Communication Systems Lancaster University, Lancaster LA1 4WA, United Kingdom
AU: Bristow, B
EM: Bill.Bristow@gi.alaska.edu
AF: Geophysical Institute University of Alaska, Fairbanks AK 99775, United States
AU: Heinselman, C
EM: craig.heinselman@sri.com
AF: Stanford Research International, Menlo Park CA 94025 , United States
AU: Hughes, J
EM: john.hughes@erau.edu
AF: Dept. of Physical Sciences Embry-Riddle Aeronautical University, Daytona Beach FL 32114 , United States
AU: Gustavsson, B
EM: bjorn@irf.se
AF: Tromso Geophysical Observatory University of Tromso, Tromso N-9037, Norway
AU: Knielsen, K
EM: knielsen@hipas.alaska.edu
AF: HIPAS Observatory, Fairbanks AK 99712, United States
AU: Pedersen, T
EM: Todd.Pedersen@hanscom.af.mil
AF: Space Vehicles Directorate Air Force Research Laboratory, Hanscom AFB MA 01731, United States
AU: Spaleta, J
EM: jspaleta@gmail.com
AF: HIPAS Observatory, Fairbanks AK 99712, United States
AU: Wong, A
EM: NIDLLC@aol.com
AF: HIPAS Observatory, Fairbanks AK 99712, United States
AB: In March of 2007 an "artificial aurora" ionospheric pumping experiment was executed by the HIPAS facility, pumping on the second electron gyro-harmonic at 2.85 MHz. Diagnostics included the Kodiak SuperDARN coherent scatter radar, the new Poker Flat AMISR incoherent scatter radar and a variety of optical instruments. The optical observations were for multiple wavelengths, primary O(1D) 630 nm and O(1S) 557.7 nm, corresponding to different threshold energies. A unique aspect is the first incoherent scatter measurements during an "artificial aurora" experiment on the second electron gyroharmonic. Measurements of the electron and ion temperature are important, in conjunction with optical measurements at multiple wavelengths, because the electron heating efficiency of various wave-plasma interactions can be estimated, e.g. parametric decay instabilities or the thermal parametric instability, resulting in either upper-hybrid, lower-hybrid or Langmuir waves.
DE: 2403 Active experiments
DE: 2407 Auroral ionosphere (2704)
DE: 2736 Magnetosphere/ionosphere interactions (2431)
SC: SPA-Aeronomy [SA]
MN: 2007 Joint Assembly