Development Of Resonance Fluorescence Lidar For Studies Of The Aurora
dc.contributor.author | Su, Liguo | |
dc.date.accessioned | 2018-08-06T18:10:17Z | |
dc.date.available | 2018-08-06T18:10:17Z | |
dc.date.issued | 2007 | |
dc.identifier.uri | http://hdl.handle.net/11122/8944 | |
dc.description | Dissertation (Ph.D.) University of Alaska Fairbanks, 2007 | |
dc.description.abstract | In this thesis I present resonance fluorescence lidar studies of the middle and upper atmosphere. I focus on two specific applications; lidar measurements of heat fluxes in the mesosphere, and lidar measurements of auroral nitrogen ions in the thermosphere. In the heat flux study, I determine the limitations in state-of-the-art sodium Doppler wind-temperature lidar measurements. I conduct statistical analysis of current lidar measurements using analytical and Monte Carlo techniques and extend them to consider future measurements. I find that the expected biases for summertime flux measurements in polar regions will be larger than the geophysical values of the fluxes. In the nitrogen resonance lidar study, I conduct a simulation of the measurements under realistic auroral conditions and found that current lidar systems should be able to make statistically significant measurements of the nitrogen profile at a resolution of 6 km and 300 s. I develop a prototype nitrogen resonance lidar system operating at 390 nm. This lidar system is based on an existing dye laser-based iron resonance lidar system that operates at 372 nm. I designed and implemented a tuning control system that allows 1 pm resolution in the laser tuning. I made a set of field measurements and found that the performance of the prototype lidar was less than expected. I conduct an engineering analysis of the measurements and conclude that the lower than expected performance is due to the lasing characteristics of the dye laser. | |
dc.subject | Electrical engineering | |
dc.title | Development Of Resonance Fluorescence Lidar For Studies Of The Aurora | |
dc.type | Dissertation | |
dc.type.degree | phd | |
dc.identifier.department | Department of Electrical and Computer Engineering | |
dc.contributor.chair | Collins, Richard L. | |
refterms.dateFOA | 2020-03-05T16:22:44Z |