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  • 1970-1974  (10)
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  • 1
    Call number: AWI A7-94-0327 ; MOP Per 8(7)
    In: Annalen der Meteorologie, Nr. 7
    Type of Medium: Series available for loan
    Pages: X, 346 S.
    ISSN: 0072-4122
    Series Statement: Annalen der Meteorologie 7
    Language: English
    Note: Contents: Preface. - Foreword. - Chapter 1 The Planetary Boundary-Layer: Definitions and Equations. - Chapter 2 Some Problems in Modelling the Planetary Boundary-Layer. - The Problem of Closing the System of the PBL-Equations. - Models Based on a Hypothesis for the Profile of the Eddy Viscosity. - Models Based on a Hypothesis for the Mixing-Length. - A Mixing-Length Hypothesis for the Planetary Boundary-Layer Flow in the Atmosphere - Beitr. Phys. Atm., 44, 215-226, 1971. - Note on the Upper Boundary Conditions. - A Note on a Method for Solving the Planetary Boundary-Layer Equations - Beitr. Phys. Atm. 44, 293-296, 1971. Chapter 3 The Structure of the Planetary Boundary-Layer. - The Eddy Viscosity in a Barotropic Planetary Boundary-Layer as Related to the Turbulent KineticEnergy - Beitr. Phys. Atm., 44,127-136, 1971. - Rossby-Number Similarity in the Planetary Boundary-Layer. - A Note on the Rossby Similarity for Flows of Barotropic Planetary Boundary-Layers (with D. YORDANOV) - Beitr. Phys. Atm., 45, 66-71, 1972. - Universal Profiles in the Barotropic Planetary Boundary-Layer - Beitr. Phys. Atm., 45, 148-163, 1972. - Note on the Energy Budget in the PBL. - Layers with a Reduced Eddy Viscosity Caused by the Baroclinicity (with D. YORDANOV) - Beitr. Phys. Atm., 45, 267-275, 1972. - The Wind Profile Very Close to the Ground - Beitr. Phys. Atm., 46, 57-63, 1973. - Numerical Study on the Effects Controlling the Low-Level Jet - Beitr. Phys. Atm., 46, 137-154, 1973. - Chapter 4 The Parameterization of PBL - Effects with the Aid of the Resistance Law. - The Resistance Law for the Planetary Boundary Layer. - The Two Constants in the Resistance Law for a Neutral Barotropic Boundary Layer of the Atmosphere - Beitr. Phys. Atm., 43, 133-140, 1970. - Note on a Paper by F. Wippermann "The Two Constants in the Resistance Law for a Neutral Barotropic Boundary Layer of the Atmosphere" by R. J. TAYLOR - Beitr. Phys. Atm., 44, 69, 1971. - Reply by F. Wippermann. - Empirical Formulae for the Universal Functions Mm (μ) and N (μ) in the Resistance Law for a Barotropic and Diabatic Planetary Boundary Layer - Beitr. Phys. Atm., 45, 305-311, 1972. - The Parameterization of the Turbulent Fluxes of Momentum, Heat and Moisture at the Ground in a Baroclinic Planetary Boundary Layer (with D. YORDANOV) - Beitr. Phys. Atm., 45, 58-65, 1972. - Baroclinic Effects on the Resistance Law for the Planetary Boundary Layer of the Atmosphere - Beitr. Phys. Atm., 45, 244-259, 1972. - A Note on the Parameterization of the Large-Scale Wind stress at the Sea Surface - Beitr. Phys. Atm., 45, 260-266, 1972. - Problems which still have to be solved before the resistance laws can be applied. - Chapter 5 Non-Stationary and/or Horizontally Non-Homogeneous Boundary-Layers. - The Effects of Non-Stationarity on the Planetary Boundary-Layer (with D.ETLING and H.LEYKAUF) - Beitr. Phys. Atm. 46, 34-56, 1973. - Boundary-Layers with a Change in the Roughness - Length and/or in the Temperature: A Bibliographical Survey. - Chapter 6 The Dynamic Instability of the Atmospheric Boundary Layer. - The Orientation of Vortices Due to Instability of the Ekman Boundary-Layer - Beitr. Phys. Atm., 42, 225-244, 1969. - The Stability of an Ekman Boundary-Layer Flow as Influenced by the Thermal Stratification (in Germ.) by D.ETLING - Beitr. Phys. Atm., 44, 168-186, 1971. - Chapter 7 The Dispersion of Windborne Material in the Planetary Boundary-Layer. - A Perspective for a Routine Prediction of Concentration Patterns (with D. YORDANOV) - Atm. Environm., 6, 877-888, 1972. - Time-Dependent Concentrations of Dispersed Material Compared with those of the Corresponding Stationary Cases (in Germ.) - Meteor. Rdsch., 26, 11-18, 1973. - Meteorological Parameters Relevant in a Statistical Analysis of Air Quality Data. - List of Symbols. - Author Index.
    Location: AWI Reading room
    Location: MOP - must be ordered
    Branch Library: AWI Library
    Branch Library: GFZ Library
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 22 (1973), S. 285-295 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Es wird eine Methode für die Vorhersage der Konzentrationsverteilung in den bodennahen Luftschichten auf Grund der synoptischen Information vorgeschlagen. Dabei werden adiabatische und barotrope Bedingungen angenommen. Es werden Formeln zur Berechnung der von kontinuierlichen Punkt-, Linien- und Flächenquellen ausgehenden Konzentrationsverteilung als Funktion der numerischen Wettervorhersage entwickelt.
    Notes: Summary A method ff predicting the concentration patterns in the surface layer (SL) on the basis of synoptic information is suggested. Adiabatic and barotropic conditions are assumed. Formulas are suggested for computation of the concentration distribution by continuous point, line, and surface sources depending on the data of numerical weather prediction (NWP).
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 23 (1974), S. 217-226 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Es wird ein Zweischichtenmodell der planetaren Grenzschicht vorgeschlagen. In der bodennächsten Schicht wird der theoretisch und experimentell gut untersuchte turbulente Austauschkoeffizient verwendet. Oberhalb der bodennächsten Schicht werden die Bewegungsgleichungen näherungsweise mit einem turbulenten Austauschkoeffizienten gelöst, der einer willkürlich angenommenen, mit der Höhe jedoch nicht sehr rasch sich ändernden Funktion entspricht. Mit dem Widerstandsgesetz wird die Höhe der bodennächsten Schicht bestimmt.
    Notes: Summary A two-layer model of the planetary boundary layer is suggested. In the surface layer the theoretically and experimentally well studied coefficient of turbulent exchange is used. Above the surface sublayer the equations of motion are approximately solved with a coefficient of turbulent exchange in an arbitrary but not quickly varying height function. By means of the resistance law the height of the surface sublayer is found.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Boundary layer meteorology 5 (1973), S. 309-320 
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Studies of the influence of orography on the dynamics of atmospheric processes usually assume the following relation as a boundary condition at the surface of the Earth, or at the top of the planetary layer: $$w = u\frac{{\delta z_0 }}{{\delta x}} + v\frac{{\delta z_0 }}{{\delta y}}$$ where u, v and w are the components of wind velocity along the x, y and z axes, respectively, and z 0 = z0(x, y) is the equation of the Earth's orography. We see that w, and consequently the influence of orography on the dynamics of atmospheric processes, depend on the wind (u, v) and on the slope of the obstacle (δz 0/δx, δz0/δy). In the present work, it is shown that the above relation for w is insufficient to describe the influence of orography on the dynamics of the atmosphere. It is also shown that the relation is a particular case of the expression: $$\begin{gathered} w_h = \left| {v_g } \right|\left[ {a_1 (Ro,s)\frac{{\delta z_0 }}{{\delta x}} + a_2 (Ro,s)\frac{{\delta z_0 }}{{\delta y}}} \right] + \hfill \\ + \frac{{\left| {v_g } \right|^2 }}{f}\left[ {b_1 (Ro,s)\frac{{\delta ^2 z_0 }}{{\delta x^2 }} + b_2 (Ro,s)\frac{{\delta ^2 z_0 }}{{\delta y^2 }} + b_3 (Ro,s)\frac{{\delta ^2 z_0 }}{{\delta x\delta y}}} \right] \hfill \\ \end{gathered} $$ where ¦vv g¦ is the strength of the geostrophic wind, a 1, a2, b1, b2, b3 are functions of Rossby number Ro and of the external stability parameter s. The above relation is obtained with the help of similarity theory, with a parametrization of the planetary boundary layer. Finally, the authors show that a close connection exists between the effects described by the above expression and cyclo- and anticyclogenesis.
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  • 5
    Publication Date: 1973-07-01
    Print ISSN: 0006-8314
    Electronic ISSN: 1573-1472
    Topics: Geosciences , Physics
    Published by Springer
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  • 6
    Publication Date: 1973-06-01
    Print ISSN: 0177-7971
    Electronic ISSN: 1436-5065
    Topics: Geography , Physics
    Published by Springer
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  • 7
    Publication Date: 1974-09-01
    Print ISSN: 0177-7971
    Electronic ISSN: 1436-5065
    Topics: Geography , Physics
    Published by Springer
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  • 8
    Publication Date: 1972-12-01
    Print ISSN: 0004-6981
    Electronic ISSN: 1878-2442
    Topics: Geosciences , Physics
    Published by Elsevier
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  • 9
    Publication Date: 1972-06-01
    Print ISSN: 0004-6981
    Electronic ISSN: 1878-2442
    Topics: Geosciences , Physics
    Published by Elsevier
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  • 10
    Publication Date: 1974-10-01
    Print ISSN: 0022-4928
    Electronic ISSN: 1520-0469
    Topics: Geography , Geosciences , Physics
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