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Now showing 1 - 10 of 559
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    Spectral surface albedo over Morocco and its impact on radiative forcing of Saharan dust
    (Abingdon : Taylor & Francis, 2009) Bierwirth, E.; Wendisch, M.; Ehrlich, A.; Heese, B.; Tesche, M.; Althausen, D.; Schladitz, A.; Müller, D.; Otto, S.; Trautmann, T.; Dinter, T.; Von Hoyningen-Huene, W.; Kahn, R.
    In May-June 2006, airborne and ground-based solar (0.3-2.2 μm) and thermal infrared (4-42 μm) radiation measurements have been performed in Morocco within the Saharan Mineral Dust Experiment (SAMUM). Upwelling and downwelling solar irradiances have been measured using the Spectral Modular Airborne Radiation Measurement System (SMART)-Albedometer. With these data, the areal spectral surface albedo for typical surface types in southeastern Morocco was derived from airborne measurements for the first time. The results are compared to the surface albedo retrieved from collocated satellite measurements, and partly considerable deviations are observed. Using measured surface and atmospheric properties, the spectral and broad-band dust radiative forcing at top-of-atmosphere (TOA) and at the surface has been estimated. The impact of the surface albedo on the solar radiative forcing of Saharan dust is quantified. In the SAMUM case of 19 May 2006, TOA solar radiative forcing varies by 12 W m-2 per 0.1 surface-albedo change. For the thermal infrared component, values of up to +22 W m-2 were derived. The net (solar plus thermal infrared) TOA radiative forcing varies between -19 and +24 W m-2 for a broad-band solar surface albedo of 0.0 and 0.32, respectively. Over the bright surface of southeastern Morocco, the Saharan dust always has a net warming effect. © 2008 The Author Journal compilation © 2008 Blackwell Munksgaard.
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    New Trends in Boundary Elements
    (Oberwolfach-Walke : Mathematisches Forschungsinstitut Oberwolfach, 2002) Schwab, Christoph; Stephan, Ernst P.; Wendland, Wolfgang L.
    [no abstract available]
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    Spatial Random Processes and Statistical Mechanics
    (Zürich : EMS Publ. House, 2006) Biskup, Marek; van der Hofstad, Remco; Sidoravicius, Vladas
    The workshop focused on the broad area of spatial random processes and their connection to statistical mechanics. The subjects of interest included random walk in random environment, interacting random walks, polymer models, random fields and spin systems, dynamical problems, metastability as well as problems involving two-dimensional conformal geometry. The workshop brought together many leading researchers in these fields who reported to each other on their recent achievements and exchanged ideas for new problems and potential solutions.
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    Mini-Workshop: Anisotropic Motion Laws
    (Zürich : EMS Publ. House, 2006) Smereka, Peter; Voigt, Axel
    Anisotropic motion laws play a key role in many applications ranging from materials science, biophysics to image processing. All these highly diversified disciplines have made it necessary to develop common mathematical foundations and framworks to deal with anisotropy in geometric motion. The workshop brings together leading experts from various fields to address well-posedness, accuracy, and computational efficiency of the mathematical models and algorithms.
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    Komplexe Analysis
    (Zürich : EMS Publ. House, 2006) Hulek, Klaus; Peternell, Thomas
    The main aim of this workshop was to discuss recent developments in several complex variables and complex geometry. The topics included: classification of higher dimensional varieties, mirror symmetry, hyperbolicity, Kähler geometry and classical geometric questions.
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    Stochastic Analysis
    (Zürich : EMS Publ. House, 2008) Werner, Wendelin; Zeitouni, Ofer
    [no abstract available]
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    Stochastic Geometry, Spatial Statistics and Statistical Physics
    (Oberwolfach-Walke : Mathematisches Forschungsinstitut Oberwolfach, 2002) Stoyan, Dietrich; Weil, Wolfgang
    [no abstract available]
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    Komplexitätstheorie
    (Oberwolfach-Walke : Mathematisches Forschungsinstitut Oberwolfach, 2003) Goldreich, Oded; Schnorr, Claus-Peter
    [no abstract available]
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    Set Theory
    (Zürich : EMS Publ. House, 2008) Magidor, Menachem; Woodin,
    [no abstract available]
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    Mini-Workshop: The Mathematics of Growth and Remodelling of Soft Biological Tissues
    (Zürich : EMS Publ. House, 2008) Garikipati, Krishna; Kuhl, Ellen
    [no abstract available]