Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- Utah State University (89)
- Air Force Institute of Technology (56)
- Embry-Riddle Aeronautical University (34)
- Michigan Technological University (31)
- Old Dominion University (25)
-
- Ateneo de Manila University (9)
- Dartmouth College (7)
- University of Dar es Salaam (6)
- University of Kentucky (4)
- University at Albany, State University of New York (3)
- University of Texas at El Paso (3)
- Western University (3)
- City University of New York (CUNY) (2)
- Clemson University (2)
- New Jersey Institute of Technology (2)
- University of Nevada, Las Vegas (2)
- University of Texas at Arlington (2)
- Aga Khan University (1)
- California Polytechnic State University, San Luis Obispo (1)
- Central Washington University (1)
- Chapman University (1)
- Cleveland State University (1)
- Coastal Carolina University (1)
- College of Saint Benedict and Saint John's University (1)
- Georgia Academy of Science (1)
- Harding University (1)
- JSS Academy of Higher Education and Research (1)
- Macalester College (1)
- Minnesota State University, Mankato (1)
- Purdue University (1)
- Keyword
-
- Mesosphere (22)
- Ionosphere (14)
- Gravity waves (10)
- Rayleigh lidar (10)
- Thermosphere (10)
-
- Turbulence (10)
- Atmospheric turbulence (9)
- Adaptive optics (8)
- Aerosols (8)
- Lidar (8)
- Modeling (7)
- Physical Sciences (6)
- Atmospheric Lidar Observatory (5)
- Atmospheric chemistry (5)
- Atmospheric lidar observatory (5)
- Magnetosphere (5)
- Atmosphere (4)
- Atmospheric waves (4)
- Climate (4)
- Optics (4)
- Refractive index (4)
- Remote sensing (4)
- SABER (4)
- Spectroscopy (4)
- Stratosphere (4)
- ALO (3)
- Aeronomy (3)
- Andes Lidar Observatory (3)
- Atmospheric gravity waves (3)
- Atmospheric optics (3)
- Publication Year
- Publication
-
- Theses and Dissertations (36)
- Doctoral Dissertations and Master's Theses (24)
- Faculty Publications (20)
- Posters (16)
- Graduate Student Posters (15)
-
- Chemistry & Biochemistry Faculty Publications (14)
- All Physics Faculty Publications (13)
- Department of Physics Publications (11)
- Dissertations, Master's Theses and Master's Reports (10)
- Physics Faculty Publications (9)
- Presentations (8)
- Publications (8)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (7)
- Dartmouth Scholarship (6)
- Physics Student Research (6)
- Tanzania Journal of Science (6)
- Conference publications (5)
- Browse All Undergraduate research (4)
- Electrical & Computer Engineering Theses & Dissertations (4)
- Michigan Tech Research Data (4)
- Physics Theses & Dissertations (4)
- Chemistry Faculty Publications (3)
- Electronic Theses and Dissertations (3)
- International Journal of Aviation, Aeronautics, and Aerospace (3)
- Open Access Theses & Dissertations (3)
- Western Research Forum (3)
- All Dissertations (2)
- All Graduate Plan B and other Reports, Spring 1920 to Spring 2023 (2)
- All Physics Faculty Presentations (2)
- Dissertations (2)
- Publication Type
- File Type
Articles 301 - 303 of 303
Full-Text Articles in Atmospheric Sciences
Performance Impacts For Actuator Misalignments And Failures In Large- Aperture Adaptive-Optic Telescopes, Timothy D. Hogan
Performance Impacts For Actuator Misalignments And Failures In Large- Aperture Adaptive-Optic Telescopes, Timothy D. Hogan
Theses and Dissertations
Large-aperture telescopes require adaptive optics in order to compensate for atmospheric turbulence which would otherwise negate the resolution advantages of using large apertures. This investigation analyzes the impacts of misalignments and failures, in the deformable mirror actuators, upon the performance of such systems. A numerical simulation of a standard adaptive optics system is used to generate characteristic optical transfer function OTF and signal-to-noise ratio SNR performance metrics. The performance impacts of the misalignments are shown to be dependent upon the Fried parameter effective telescope diameter, the source object brightness, and the control system time delay. The degree of performance degradation …
Characterization Of Laboratory Generated Turbulence By Optical Phase Measurements, Eric P. Magee
Characterization Of Laboratory Generated Turbulence By Optical Phase Measurements, Eric P. Magee
Theses and Dissertations
The resolution achieved by an optical imaging system in the presence of the random effects of the atmosphere is severely degraded from the theoretical diffraction limit. Techniques exist for recovering near diffraction limited performance of an imaging system in the presence of atmospheric turbulence. As opposed to laboratory testing, testing image enhancement techniques in the Earth's atmosphere imposes many limitations. Unfavorable weather conditions could result in the loss of time and money invested in conducting the experiments. With a properly characterized turbulence generator, with statistics that match those of the atmosphere, experimental testing of image enhancement techniques can be conducted …
Winds In The Upper Mesosphere At Mid-Latitude: First Results Using An Imaging Fabry-Perot Interferometer, D Rees, A Aruliah, T J. Fuller-Rowell, Vincent B. Wickwar, R J. Sica
Winds In The Upper Mesosphere At Mid-Latitude: First Results Using An Imaging Fabry-Perot Interferometer, D Rees, A Aruliah, T J. Fuller-Rowell, Vincent B. Wickwar, R J. Sica
All Physics Faculty Publications
The first stage of a new midlatitude facility at the Hardware Ranch Observatory near Bear Lake (41.93°N, 111.42°W, 1970 M elevation), for studies of the aeronomy of the middle and upper atmosphere, was completed during early September 1989. An Imaging Fabry‐Perot interferometer (IFPI) (Rees et al., 1982; Rees et al., 1990), was commissioned with a special Imaging Photon Detector (IPD) (McWhirter et al., 1982), equipped with a Gallium Arsenide (GaAs) photocathode. Wind and temperature structure can be deduced from observations of the Doppler shift and Doppler broadening of airglow and auroral emissions from the mesosphere and thermosphere. The near infra‐red …