Title of Oral/Poster Presentation

Wind in the Upper Thermosphere

Class

Article

Department

Physics

Faculty Mentor

Alan Marchant

Presentation Type

Poster Presentation

Abstract

Using the Split-Field Etalon Doppler Imager or SEDI (developed at USU) measurements of winds in the thermosphere were take from a high altitude balloon. Using interferometry, precise measurements of the wavelength of the red line atomic oxygen airglow reaching the balloon payload. These measurements are compared to an onboard calibration source as well as to the spectral lines of atomic oxygen. The change in wavelength represents a source that is with respect to the balloon, due to the Doppler effect. A moving source in the case of red line airglow is representative of thermospheric winds at altitudes between 200-350 km. This data is compiled and analyzed to find the windspeed in the red line airglow.

Start Date

4-9-2015 1:30 PM

This document is currently not available here.

Share

COinS
 
Apr 9th, 1:30 PM

Wind in the Upper Thermosphere

Using the Split-Field Etalon Doppler Imager or SEDI (developed at USU) measurements of winds in the thermosphere were take from a high altitude balloon. Using interferometry, precise measurements of the wavelength of the red line atomic oxygen airglow reaching the balloon payload. These measurements are compared to an onboard calibration source as well as to the spectral lines of atomic oxygen. The change in wavelength represents a source that is with respect to the balloon, due to the Doppler effect. A moving source in the case of red line airglow is representative of thermospheric winds at altitudes between 200-350 km. This data is compiled and analyzed to find the windspeed in the red line airglow.