Now showing items 1-9 of 9

• Can a meteor measure vertical winds? ﻿

(Master thesis, 2014)
In the first part of this thesis the zonal and meridional tilt of the SKiYMET Meteor Radar at Dragvoll (63.4 N 10.5 E) has been found using two different methods. The average zenith angle model found the zonal tilt to be ...
• Drivers of the high frequency variability of gravity wave forcing in the mesosphere and lower thermosphere ﻿

(Master thesis, 2015)
In this thesis the influence of gravity waves (GWs) in the mesosphere/lower thermosphere (MLT) was analysed. This was inspired by the work done in the paper by de Wit et al. (2014), which used the SKiYMET meteor radar in ...
• Gravity Wave Climatology for Trondheim using a Meteor Radar. ﻿

(Master thesis, 2013)
In this thesis, a gravity wave climatology for the altitude range of the airglow (hydroxyl) layer of 83 to 91km have been made using data from a meteor radar located at Dragvoll (64,4$^{o}$N, 10,5$^{o}$E) in Trondheim. The ...
• NAO-Influence on Temperature Trends in Norway and Canada for the last 50 Years ﻿

(Master thesis, 2015)
The paper looks at how much of the temperature changes the last 50 years in Norway and East Canada/West Greenland that can be explained by NAO, and how much that must be explained by other weather drivers. Finally it also ...
• Solar and Lunar Tides in the MLT ﻿

(Master thesis, 2013)
Simulations were done in Matlab to see how many days of data is needed to get accurate values of solar and lunar semidiurnal tides amplitudes and phases. For the component dominating the signal, 4 days can be sufficient, ...
• Solar and Lunar Tides in the MLT ﻿

(Master thesis, 2016)
Simulations were done in Matlab to see how many days of data is needed to get accurate values of solar and lunar semidiurnal tides amplitudes and phases. For the component dominating the signal, 4 days can be sufficient, ...
• The impact of energetic electron precipitation on mesospheric hydroxyl during a year of solar minimum ﻿

(Journal article; Peer reviewed, 2016)
In 2008 a sequence of geomagnetic storms occurred triggered by high-speed solar wind streams from coronal holes. Improved estimates of precipitating ﬂuxes of energetic electrons are derived from measurements on board the ...
• The Relative Influence of Solar Radiative and Solar Geomagnetic Variation on the Dynamics of the Polar Upper Mesosphere ﻿

(Master thesis, 2012)
Resent research indicates that there might be a connection between perturbation of the Earth's geomagnetic field caused by solar wind, and the atmospheric circulation. In this project the mesospheric meridional and zonal ...
• Using Background OH Airglow from astronomical Observations for atmospheric Research: A Proof of Concept ﻿

(Master thesis, 2015)
The physics of the hydroxyl (OH) layer located in the Mesosphere and Lower Thermosphere (MLT) has become a focus of interest, as more and more climate models extend into this region. This is shown by the IPCC's last two ...