Testing of parameterizations of turbulence of the boundary layer of the atmosphere over the ocean surface
Journal Title: Вісник Одеського державного екологічного університету - Year 2017, Vol 22, Issue 22
Abstract
The article is devoted to testing of parameterizations of turbulent processes in the atmospheric boundary layer on the basis of different methods of closure of differentiation equations system over the ocean surface which is currently used in numerical weather forecast models. These methods include models from the first up to 1.5th closure orders. The models of the first order closure include those having diagnostic equations for turbulence coefficients which were obtained from the models of high order closure requiring use of kinetic energy of turbulent vertical velocity fluctuations subject to availability of a stable boundary layer of the atmosphere. Verification of successful use of turbulence parameterization schemes is made on the basis of actual material consisting of the annual sample data of standard meteorological and aerological observations conducted during the first global experiment on the ocean station “C” in 1978-1979. Quantitative fit with field data was evaluated using coefficients of correlation and difference for each of the seasons and for the whole year. Qualitative analysis was carried out on the basis of comparison of averaged profiles for each month of the year and the time course of meteorological values at reference levels. The work includes check of reproduction of vertical profiles of wind speed and air temperature modulus in the atmospheric surface layer. Characteristics of the latter are obtained using the parameterization of Kazakov-Lykosov which implies merging of universal functions of Businger-Dyer to avoid rupture of the latter when dealing with cases of unstable stratification.
Authors and Affiliations
E. V. Ivanova
Keywords
Related Articles
- EP ID EP328255
- DOI -
- Views 115
- Downloads 0
Estimation of greenhouse gases emission from the sites of municipal solid waste disposal: critical analysis of methods and adaptation to the conditions of the Odessa region
The article presents an overview of the most used methods for calculation of the landfill gas emission and/or its components from the municipal solid waste disposal sites. Landfill gas is a product of anaerobic decomposi...
Synoptic processes during formation of low-tropospheric streams over the territory of southern Ukraine in warm half-year
Identification and forecasting of jet streams within at low levels of the atmosphere is one of the challenging tasks of synoptic meteorology. The reason for such difficulties lies in diversity of physical mechanisms caus...
Current water balance of Khadzhibeyskyi liman
The article evaluates inputs of various natural and anthropogenic factors to the formation of water balance of Khadzhibeyskyi Liman under the present-day conditions. We discovered that in the latest decades, due to clima...
Dynamics of state of surface water quality of the Western Bug river basin
Problem. The Western Bug is a cross-border river which makes it to be an interesting object for research. Dynamics of the state of the basin system is clearly observed through seasonal and perennial fluctuations of conce...
Quality of aquatic environment of Khadzhibeyskyi liman in summer, 2016
The article describes the quality of the aquatic environment of Khadzhibeyskyi Liman (one of the largest closed reservoirs of the north-western Black Sea region) based on the analysis of the results of hydrochemical stud...