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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
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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).
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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.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 17 (1968), S. 246-250 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Es wird die stationäre vertikale Verteilung gewichtloser radioaktiver Substanzen unter der Annahme einer horizontalen Homogenität untersucht. Für die Änderung des vertikalen Austauschkoeffizienten mit der Höhe wird ein Zweischichten-Potenzgesetz angenommen. Die erhaltene Lösung wird auf die bodennahe Luftschicht angewendet, für die eine Struktur nachMonin undObukhov zugrunde gelegt ist.
    Abstract: Résumé On examine la répartition verticale stationnaire de substances radioactives sans poids en admettant une homogénéïté horizontale. On admet une loi potentielle en deux couches pour la modification avec l'altitude du coefficient vertical d'échange. La solution obtenue est appliquée à la couche voisine du sol pour laquelle on utilise une structure selonMonin etObukhov.
    Notes: Summary The stationary vertical distribution of a weightless radioactive substance is considered supposing a horizontal homogeneity. A two-layer exponent law of the height is accepted for the vertical turbulent diffusion coefficient. The obtained solution is applied to the surface layer using the results ofMonin andObukhov about its structure.
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Meteorology and atmospheric physics 18 (1969), S. 163-170 
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Summary The stationary vertical distribution of the electric field is considered supposing a horizontal homogeneity. It is assumed, that the electrical conductivity is known. A two-layer exponent law of the height is accepted for the vertical turbulent diffusion coefficient. The obtained solution is applied to the surface layer using the results ofMonin andObuchov.
    Abstract: Résumé On examine la répartition verticale stationnaire du champ électrique sans poids en admettant une homogénéité horizontale. On suppose, que la conductibilité est connue. On admet une loi potentielle en deux couches pour la modification du coefficient vertical d'échange avec l'altitude. La solution obtenue est appliquée à la couche voisine du sol pour laquelle on utilise une structure selonMonin etObuchov.
    Notes: Zusammenfassung Die stationäre vertikale Spannungsverteilung des elektrischen Feldes wird unter Annahme horizontaler Homogenität untersucht. Dabei wird die Leitfähigkeit als bekannt angenommen. Für die Änderung des vertikalen Austauschkoeffizienten mit der Höhe wird ein Zweischichten-Potenzgesetz angesetzt. Die erhaltene Lösung wird auf die bodennahe Luftschicht angewandt, für welche die Struktur nachMonin undObuchov zugrunde gelegt wurde.
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Boundary layer meteorology 25 (1983), S. 363-373 
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The temperature and wind profiles in the planetary boundary layer (PBL) are investigated. Assuming stationary and homogeneous conditions, the turbulent state in the PBL is uniquely determined by the external Rossby number and the stratification parameters. In this study, a simple two-layer barotropic model is proposed. It consists of a surface (SL) and overlying Ekman-type layer. The system of dynamic and heat transfer equations is closed usingK theory. In the SL, the turbulent exchange coefficient is consistent with the results of similarity theory while in the Ekman layer, it is constant. Analytical solutions for the wind and temperature profiles in the PBL are obtained. The SL and thermal PBL heights are properly chosen functions of the stratification so that from the solutions for wind and temperature, the PBL resistance laws can be easily deduced. The internal PBL characteristics necessary for the calculation (friction velocity, angle between surface and geostrophic winds and internal stratification parameter) are presented in terms of the external parameters. Favorable agreement with experimental data and model results is demonstrated. The simplicity of the model allows it to be incorporated in large-scale weather prediction models as well as in the solution of various other meteorological problems.
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Boundary layer meteorology 26 (1983), S. 1-13 
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract A numerical model of long-range air-pollutant transport is developed, in which a simple planetary boundary layer (PBL) is incorporated. The pollution field results from the superposition of discrete ‘puffs’ of pollutants which are emitted periodically in different regions. The instantaneous sources in the different cells are approximated by rotational ellipsoids with Gaussian concentration distributions. The puff movement due to the external flow is followed by the displacement of the centroid. The expansion of the puff is modelled by nonisotropic Fickian diffusion. A simple barotropic PBL model is used to study the PBL influence. This model gives the flow velocity and the vertical turbulent exchange coefficient, which depend on the external parameters Ro and S — Rossby number and stratification parameter. The model performance is investigated by special test runs. The dependence of the pollution field on source height, stability conditions and vertical motions is shown.
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Boundary layer meteorology 20 (1981), S. 269-273 
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract A resistance law for nonstationary conditions is suggested assuming similarity of the non-dimensional Reynold's stress. Equations of motion for the wind velocity deviations are used for the outer layer. In the wall layer, wall similarity is supposed as usual. Then a matching procedure is used for the derivation of the resistance law.
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Boundary layer meteorology 11 (1977), S. 27-32 
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The air pollution in the planetary boundary layer (PBL) at a height of about 1 km is considered. Assuming stationarity and horizontal homogeneity of the underlying surface, the turbulent state in the PBL is completely determined by the following external parameters: the Rossby number, one parameter for thermal stratification and two for baroclinicity. The turbulent state in the PBL under the same conditions is also determined completely by the following internal parameters: one for thermal stratification and two for baroclinicity. If the internal or external parameters completely determine the PBL turbulent state, then they should completely determine the diffusion processes in it. That is why for the analysis of pollution data, it is recommended that these representative meteorological parameters should be used rather than selected ones. The external parameters which may be obtained from synoptic data have a definite advantage for statistical processing of air pollution data. This is clearly of importance for forecasting. On the other hand, the connection between pollution and the internal parameters is comparatively well-studied theoretically. That is why for the prediction of pollution, it is necessary to know the dependence between the internal and external parameters, as given by the resistance law. An example of statistical processing of air pollution data in the PBL is treated in terms of the external parameters. In addition, an example is given of a theoretical prediction of pollution using synoptic data.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Boundary layer meteorology 17 (1979), S. 293-296 
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The non-stationary planetary boundary layer is parameterized for use in weather forecasting numerical models.
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