Auflistung nach Schlagwort "Antarctica"

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  • Automated extraction of the Antarctic coastline using snakes 
    Klinger, T.; Heipke, Christian; Ott, N.; Schenke, H.W.; Ziems, M. (Göttingen : Copernicus GmbH, 2010)
    In this paper we present an automatic approach for coastline detection from images which is based on parametric active contours (snakes). Snakes require the definition of an energy functional that reflects the underlying ...
  • Influence of surface reflectivity on radiation in the Antarctic environment 
    Smolskaia, I.; Wuttke, S.; Seckmeyer, G.; Michael, K. (Bellingham Wash. : SPIE, 2006)
    We demonstrate the importance of surface reflectivity for the radiation field in polar regions by a combination of measurements and radiative transfer calculations. Results from measurements of spectral albedo, radiance ...
  • Measurements of spectral snow albedo at Neumayer, Antarctica 
    Wuttke, Sigrid; Seckmeyer, Gunther; König-Langlo, Gert (Göttingen : Copernicus, 2006-03-07)
    Spectral albedo in high resolution, from 290 to 1050 nm, has been measured at Neumayer, Antarctica, (70 390 S, 8 150 W) during the austral summer 2003/2004. At 500 nm, the spectral albedo nearly reaches unity, with slightly ...
  • Meteorology and oceanography of the Atlantic sector of the Southern Ocean - a review of German achievements from the last decade 
    Hellmer, Hartmut H.; Rhein, Monika; Heinemann, Günther; Abalichin, Janna; Abouchami, Wafa; Baars, Oliver; Cubasch, Ulrich; Dethloff, Klaus; Ebner, Lars; Fahrbach, Eberhard; Frank, Martin; Gollan, Gereon; Greatbatch, Richard J.; Grieger, Jens; Gryanik, Vladimir M.; Gryschka, Micha; Hauck, Judith; Hoppema, Mario; Huhn, Oliver; Kanzow, Torsten; Koch, Boris P.; König-Langlo, Gert; Langematz, Ulrike; Leckebusch, Gregor C.; Lüpkes, Christof; Paul, Stephan; Rinke, Annette; Rost, Bjoern; Ruthers van der Loeff, Michael; Schröder, Michael; Seckmeyer, Gunther; Stichel, Torben; Strass, Volker; Timmermann, Ralph; Trimborn, Scarlett; Ulbrich, Uwe; Venchiarutti, Celia; Wacker, Ulrike; Willmes, Sascha; Wolf-Gladrow, Dieter (Berlin : Springer, 2016)
    In the early 1980s, Germany started a new era of modern Antarctic research. The Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) was founded and important research platforms such as the German ...
  • Radiation conditions in an Antarctic environment 
    Wuttke, Sigrid (Hannover : Universität, 2005)
    [no abstract]
  • Radiation measurements at the German antarctic Neumayer Station 
    Wuttke, Sigrid; Seckmeyer, Gunther; Schrems, Otto; König-Langlo, Gert (Bellingham Wash. : SPIE, 2005)
    During the austral summer 2003/04 the Institute for Meteorology and Climatology, University of Hannover, Germany, has deployed a newly developed spectroradiometric system at the permanent German Antarctic Neumayer Station ...
  • Satellite-derived UV climatology at Escudero station, Antarctic Peninsula 
    Cordero, Raul R.; Damiani, Alessandro; Seckmeyer, Gunther; Riechelmann, Stefan; Labbe, Fernando; Laroze, David; Garate, Fernanda (Cambridge : Cambridge University Press, 2013)
    We have used data from the Ozone Monitoring Instrument (OMI) aboard NASA's Earth Observing System (EOS) Aura satellite over the period 2004-11 to describe the characteristics of surface ultraviolet (UV) irradiance at ...
  • Warming events projected to become more frequent and last longer across Antarctica 
    Feron, Sarah; Cordero, Raúl R.; Damiani, Alessandro; Malhotra, Avni; Seckmeyer, Gunther; Llanillo, Pedro ([London] : Macmillan Publishers Limited, part of Springer Nature, 2021)
    Summer temperatures are often above freezing along the Antarctic coastline, which makes ice shelves and coastal snowpacks vulnerable to warming events (understood as periods of consecutive days with warmer than usual ...