Berlin 2014 – wissenschaftliches Programm

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UP: Fachverband Umweltphysik

UP 2: Methoden - Fernerkundung

UP 2.5: Vortrag

Dienstag, 18. März 2014, 11:45–12:00, MAG 100

Estimation of anthropogenic greenhouse gas emission rates using Methane Airborne MAPper (MAMAP) spectroscopic measurments — •Sven Krautwurst, Thomas Krings, Konstantin Gerilowski, Michael Buchwitz, John Burrows, and Heinrich Bovensmann — University of Bremen, Institute of Environmental Physics. P.O. 330440, 28334 Bremen, Germany

Carbon dioxide (CO2) and methane (CH4) are the two most important anthropogenic greenhouse gases. The quantification of their sources and sinks is essential to predict their future abundance and their impact on climate. The Methane Airborne MAPper (MAMAP) instrument provides spectroscopic measurements which can be used to estimate emission rates of localized CO2 and CH4 sources. In this talk, new measurements of the coal-fired power plants (PP) Jaenschwalde and Schwarze Pumpe taken during a campaign in the year 2011 are presented. The obtained column-averaged dry air mole fractions of carbon dioxide (XCO2) were compared to previous data of the same PPs gathered during a campaign in the year 2007. It could be confirmed that a modification of the instrument, between 2007 and 2011, improved the precision of retrieved XCO2. Furthermore, an algorithm was developed utilizing vertically highly resolved potential temperature and wind profiles from model runs for a more realistic description of the lower atmosphere, in order to determine the plume propagation and its vertical distribution. From that, mean wind speeds of the plumes used for emission rate estimates of both PPs in 2007 and 2011 were estimated.