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Citation link: http://nbn-resolving.de/urn:nbn:de:gbv:46-00104190-18
00104190-1.pdf
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Antarctic Specific Features of the Greenhouse Effect : a Radiative Analysis Using Measurements and Models


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Other Titles: Antarktis spezifische Besonderheiten des Treibhauseffektes : eine Strahlungsanalyse unter Verwendung von Messungen und Modellen
Authors: Schmithüsen, Holger 
Supervisor: Lemke, Peter
1. Expert: Lemke, Peter
Experts: Notholt, Justus  
Abstract: 
CO2 is the strongest anthropogenic forcing agent for climate change since pre-industrial times. Like other greenhouse gases, CO2 absorbs terrestrial surface radiation and causes emission from the atmosphere to space. As the surface is generally warmer than the atmosphere, the total long-wave emission to space is commonly less than the surface emission. However, this does not hold true for the high elevated areas of central Antarctica. For this region, it is shown that the greenhouse effect of CO2 is around zero or even negative. Moreover, for central Antarctica an increase in CO2 concentration leads to an increased long-wave energy loss to space, which cools the earth-atmosphere system. These unique findings for central Antarctica are in contrast to the well known general warming effect of increasing CO2 . The work contributes to explain the non-warming of central Antarctica since 1957.
Keywords: Greenhouse Effect; Antarctica; Climate Change; Long-wave Radiation; Thermal Radiation; Terrestrial Radiation; Instantaneous Radiative Forcing; non-warming; CO2; Carbon Dioxide
Issue Date: 2-Mar-2015
Type: Dissertation
URN: urn:nbn:de:gbv:46-00104190-18
Institution: Universität Bremen 
Faculty: FB1 Physik/Elektrotechnik 
Appears in Collections:Dissertationen

  

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