Stratosphere and troposphere

For millions of years our atmosphere has changed persistently and is continuously changing today. Most of the changes are triggered by natural processes and not influenced by human beings. But some changes primarily observed during the last century, such as the emissions of CFCs, are obviously due to human activities.
In order to understand these changes and investigate their causes it is important to gain knowledge of physical and chemical processes in the atmosphere, knowledge of the interaction between different systems like the surface of the earth, the biosphere, the oceans, the cryosphere and the atmosphere as well as knowledge of the interaction between the different layers of the atmosphere itself.

Forschungszentrum Jülich

The stratospheric research section, IEK-7 studies chemical, microphysical and dynamic processes in the atmosphere and the role they play in climate change. The institute focuses on the tropopause region (5 to 15 km), because this is where changes in greenhouse gases, aerosols and clouds have a particularly strong effect on the radiative forcing of the atmosphere.
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Anthropogenic activities, in particular increasing energy use and production, and natural processes release large quantities of trace substances into the atmosphere influencing living conditions on Earth. The tropospheric research section, IEK-8 investigates the physical and chemical processes in the troposphere which have a major impact on the chemical composition of the atmosphere.
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Wuppertal University

Atmospheric Physics in Wuppertal is engaged in the reasearch of physical processes in the atmosphere from the Earth's surface to the upper atmosphere.
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Atmospheric Chemistry  in Wuppertal is engaged in the reasearch of chemical processes in the atmosphere from the Earth's surface to the upper atmosphere.
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Cologne University

The Integrated Remote Sensing group combines state-of-the-art remote sensing methods and applies these methods for use in evaluation and improvement of atmospheric models. Overall goal is an improved understanding of the atmospheric component of the hydrological cycle.
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