Search for dissertations about: "rocket measurements"
Showing result 1 - 5 of 11 swedish dissertations containing the words rocket measurements.
-
1. Rocket-borne in situ measurements in the middle atmosphere
Abstract : The Earth's mesosphere and lower thermosphere in the altitude range 50-130 km is a fascinating part of our atmosphere. Complex interactions between radiative, dynamical, microphysical and chemical processes give rise to several prominent phenomena, many of those centred around the mesopause region (80-100 km). READ MORE
-
2. Rocket-borne optical measurements of minor constituents in the middle atmosphere
Abstract : .... READ MORE
-
3. Spectroscopic and kinetic studies of atmospheric oxygen emissions
Abstract : The terrestrial night sky spectrum Is dominated by emission features related to oxygen photochemistry. Photodissociation of molecular oxygen, the second most abundant atmospheric constituent Is the most efficient channel for converting solar electromagnetic radiation into chemical energy. READ MORE
-
4. Design, Characterization, and Calibration of Low-Noise Terahertz Receivers
Abstract : This thesis is focused on the field of instrumentation for radio-astronomy and atmospheric science, and specifically deals with problems such as optical design and its verification, horn antennas and receiver optics’ components, different aspects of measurement systems in order to characterize low-noise THz receivers, and its calibration techniques.Ultra low-noise Terahertz receivers, used in radio-astronomy, are typically coupled to the telescope system through relay optics that provides guiding of the signal to the receiver frontend with minimal loss. READ MORE
-
5. Satellite observations of auroral acceleration processes
Abstract : Measurements with satellite and sounding rocket borne instruments contain important information on remote and local processes in regions containing matter in the plasma state. The characteristic features of the particle distributions can be used to explain the morphology and dynamics of the different plasma populations. READ MORE