Linda MegnerResearcher, docent
Contact
Name and title:
Researcher, docent
Workplace:
Department of Meteorology
Visiting address
Room C 650
Svante Arrhenius väg 16 C
Postal address
Meteorologiska institutionen (MISU)
106 91 Stockholm
Research groups
Over long timescales, the circulation systems co-evolve with ice sheets, mountain ranges, and redistributions of carbon between the atmosphere, ocean and land. The circulation and associated feedbacks influence exchanges of energy and materials between compartments of the climate system, and create teleconnections and natural climate variability.
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How and why the atmosphere moves is studied within dynamic meteorology. The atmosphere is never still and its movement can be described by partial differential equations which describe how changes in speed, density, pressure and temperature occur. We study these movements from the smallest scale of turbulence to planetary waves.
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Middle atmosphere research at MISU focuses on altitudes between about 10 and 130 km. We use satellites, sounding rockets and ground-based instruments to explore this fascinating part of our planet. As a current highlight, we launched Sweden’s new research satellite in November 2022: MATS.
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A continued change in the atmospheric content of greenhouse gases and particles is estimated to result in future warming well above 1.5°C, compared with pre-industrial levels. It is uncertain how much heating is masked by the cooling effect of the particles, especially the effect of the particles on the distribution and properties of the clouds.
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The global warming is not uniformly distributed over the Earth. The polar regions are especially sensitive for climate change and the warming in the Arctic is more than twice as fast as for the Earth on average. The effects of this warming are large, with a dramatic loss of sea ice as an example.
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About me
Research interests
Middle atmosphere
Coupling processes between different layers in the atmosphere
MATS satellite - global observations of gravity waves
Meteoric material in the atmosphere
Solar-Terrestrial coupling processes
I am currently responsible for the following courses:
Atmospheric Thermodynamics (MO3003)
Weather, Climate, Energy and Society (MO5000)
Presentation Technique (under MO6001)
MATS (Mesospheric Airglow/Aerosol Tomography and Spectroscopy) is a Swedish satellite mission designed to investigate atmospheric waves. Large uncertainties in the distribution of such waves is a limiting factor for atmospheric models in predicting future changes in the mesosphere, the region bordering space at 50-100 km above sea level.
The ORIGIN rocket project addresses the Earth's nightglow, a global emission layer that is the result of reactions between atomic oxygen and other atmospheric species in the upper mesosphere and lower thermosphere, at altitudes between 80 and 110 km.
