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Jena 2013 – wissenschaftliches Programm

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UP: Fachverband Umweltphysik

UP 1: Atmosphäre - Spurengase, Aerosole und Labormessungen

UP 1.2: Vortrag

Dienstag, 26. Februar 2013, 11:30–11:45, HS 5

Cool and wet or coal and dry, how coal fired power generation modifies regional climate — •Wolfgang Junkermann1,2 and Jorg M. Hacker21KIT, IMK-IFU, Garmisch-Partenkirchen, Germany — 2ARA, Flinders University, Adelaide, Australia

Burning coal for power generation has environmental impact due to up to now unavoidable carbon dioxide emissions leading to global warming. A further unanticipated side effect of flue gas cleaning and reductions of sulphur and nitrogen oxide emissions is the enhancement of the production of ultrafine particles serving as cloud condensation nuclei (CCN) precursors. The number of additional CCN can modify cloud microphysics on a regional scale. Here we show first observational evidence for a large scale significant modification of rainfall spatial and temporal distribution due to power generation from state of the art 'clean' coal burning.

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