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Institute of Meteorology and Climate Research - Atmospheric Trace Gases and Remote Sensing

The Institute of Meteorology and Climate Research (IMK) - Atmospheric Trace Gases and Remote Sensing (ASF) investigates dynamic, microphysical and chemical processes in the Earth’s atmosphere, with the goal to understand, quantify and predict its natural variability and long-term changes.

Accurate measurements of atmospheric trace gases from various observational platforms (ground-based stations, air craft, balloons, satellites) provide the data that are required for the modelling of atmospheric processes.

Particular focus of the activities of IMK-ASF is to investigate the complex links and feedbacks between climate change, dynamics and transport, and atmospheric chemistry.

NEWS

Forschungsflugzeug HALO
Durch den Monsun: Flugzeugmission zu Auswirkungen auf Luftqualität und Klimawandel

Die Selbstreinigungskraft der Atmosphäre steht im Fokus der 30-tägigen Halo Kampagne OMO (kurz für Oxidation Mechanism Observations, „Beobachtung von Mechanismen der Oxidation“), die am 21. Juli von Zypern aus gestartet ist. Zunächst stehen Analysen über der arabischen Halbinsel und dem arabischen Meer auf dem Programm. Dann wechseln Flugzeug, Crew und Team auf die Malediven, um von dort aus die Atmosphäre über dem indischen Ozean und dem Golf von Bengalen zu analysieren. Anschließend geht es nochmals zwei Wochen nach Zypern.

clono2_klein
Partitioning and budget of inorganic and organic chlorine species observed by MIPAS-B and TELIS in the Arctic in March 2011

The MIPAS-B and TELIS balloon measurements obtained in northern Sweden on 31 March 2011 inside the stratospheric polar vortex have provided vertical profiles of inorganic and organic chlorine species as well as diurnal variations of ClO around sunrise over the whole altitude range in which chlorine has been undergoing activation and deactivation. The complete inorganic and organic chlorine partitioning and budget (representative for the late winter Arctic stratosphere) has been derived by combining MIPAS-B and TELIS simultaneously observed molecules. A total chlorine amount of 3.41 ± 0.30 ppbv is inferred from the measurements (between 25 and 36 km). This value is in line with previous stratospheric observations carried out outside the tropics confirming the slightly decreasing chlorine amount in the stratosphere

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Einlasssystem D-AIHE
High latitude volcanic aerosol impact on incoming solar radiation
New in situ aerosol data from the CARIBIC Obersvatorium in combination with newly evaluated CALIPSO satellite data show a significant impact of northern hemisphere high latitute volcanic eruptions on incoming solar radiation. The study has been published in Nature Communications