Modeling Air-Lake Interaction: Physical Background

ISBN-13: 9783540529880 / Angielski / Miękka / 1991 / 129 str.

Sergei S. Zilitinkevich; E. E. Fedorovich; S. D. Golosov

Opis

Out of the multitude of physical processes whose mechanisms depend on the interaction between the atmosphere and a lake, only those have been selected for discussion in this book which are inevitable in the mathematical modeling of lake hydrology and the microclimates, i.e., the meteorological regime over lakes and surrounding land. There are many reasons for a combined consideration of tile hydrological and meteorological aspects. First of all, they are essentially similar from a fluid- mechanical point of view. Thus, the same phenomenon, viz., the turbulent plan- etary boundary layer, is represented in lakes as the upper well-mixed water layer and in the atmosphere as the lower air layer directly influenced by thermal and dynamical action of the underlying surface. Processes at the air/water interface are equally important in energy transfer in both media. And finally, dynamical and thermal interaction between the adjoining atmospheric and lacustrine bound- ary layers appears to be even stronger than between the upper and deep-water layers of a lake.

Spis treści

1. New Results in the Theory of Planetary Boundary Layers.- 1.1 Vertical Structure and Energy Transfer Under Neutral and Stable Conditions.- 1.2 The Entrainment Equation for Convection.- 2. Diurnal Cycle of the Atmospheric Planetary Boundary Layer.- 2.1 Parameterization of Energy Transfer Processes.- 2.2 Calculation of Dynamic Parameters.- 3. Air-Water Interaction Parameters over Lakes.- 3.1 Similarity Theory for a Near-Surface Stratified Layer.- 3.2 Parameterization of Fine-Scale Air-Water Interaction.- 3.3 Special Cases.- 4. Wind-Induced Drift of Surface Films.- 4.1 Main Parameters of the Drift Current.- 4.2 Measurements of Drift Roughness in the Laboratory.- 4.3 Drift Roughness from Measurements on Lakes.- 5. Seasonal Changes of Temperature and Mixing Conditions in a Lake.- 5.1 Parameterized TEMIK Model.- 5.2 Numerical Experiments and Comparison with Field Measurements.- 6. Theoretical and Laboratory Investigation of the Thermal Bar.- 6.1 Theoretical Model.- 6.2 Laminar Stage of the Development of the Thermal Bar in Laboratory Experiments.- Future Work.- Table of Symbols.- References.

O autorze

Current concern about the stability of our climatic system in light of the influx of manmade components makes the topic of this book, theoretical modeling of a microclimate, of supreme importance. This book provides a good account of the main phenomena determining the thermal and dynamic regimes in air-lake systems and is aimed at students and researchers in climatology and its subdisciplines.