Essays about: "ionosphere"

Showing result 16 - 20 of 47 essays containing the word ionosphere.

  1. 16. Multiple CubeSat Mission for Auroral Acceleration Region Studies

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Marley Santiago Castro; [2021]
    Keywords : formation flight; mission analysis; aurora; auroral acceleration region; AAR; matlab; mission design; cubesat; cube satellites; multiple spacecraft;

    Abstract : The Auroral Acceleration Region (AAR) is a key region in understanding the interactionbetween the Magnetosphere and Ionosphere. To understand the physical, spatial, and temporal features of the region, multi-point measurements are required. READ MORE

  3. 17. Radio Emissions from Earth’s Foreshock and Bolides

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Patrick Oppel; [2021]
    Keywords : ;

    Abstract : It is well understood that Earth’s foreshock radiation is due to the bow shock deflecting the solar wind and accelerating electrons upstream into the foreshock where they produce Langmuir waves and radio emissions. Recently, the Long Wavelength Array (LWA) in the USA observed radio waves from meteors and other bolides entering the ionosphere and atmosphere. READ MORE

  4. 18. Bow shock current closure to Earth's polar ionosphere - A statistical study using AMPERE and OMNI data

    University essay from Umeå universitet/Institutionen för fysik

    Author : Eva Krämer; [2021]
    Keywords : ;

    Abstract : The bow shock current is hypothesized to connect to the Earth's magnetosphere on open field lines and to contribute as a field aligned current to the polar ionospheric currents. In order to investigate this, two years of AMPERE data are used to compute the average region 1 currents, and average currents within the polar cap boundary, under different interplanetary magnetic field (IMF) clock angles and IMF magnitudes. READ MORE

  5. 19. Ionospheric Models for GNSS Measurements

    University essay from KTH/Fastigheter och byggande

    Author : Carolina Offenbacher; Ellen Thornström; [2020]
    Keywords : GNSS; ROTI; TEC; ionospheric turbulence; GNSS; ROT; TEC;

    Abstract : There is an increasing demand for higher precision when using Global Navigation Satellite Systems, GNSS, for positioning. The measurement uncertainty depends on multiple factors and one of them is the ionosphere. READ MORE

  6. 20. Towards the Performance Assessment of aMapdrift Autofocus for a P-Band SARMission Implementation

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Andrés Felipe Betancourt Payán; [2019]
    Keywords : SAR; Autofocus; P-Band; Biomass;

    Abstract : In the context of the ESA BIOMASS mission in which for the first time, a P-Band SAR sensor isgoing to be mounted into a spaceborne system. With its penetration capability, it will contributeto the measurement of the biomass and carbon content in the Earth’s forests. READ MORE