Blar i Bergen Open Research Archive på forfatter "Zilitinkevich, Sergej S."
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Atmospheric boundary layers in storms: advanced theory and modelling applications
Zilitinkevich, Sergej S.; Esau, Igor N.; Baklanov, A. (Peer reviewed; Journal article, 2005-03-29)Turbulent planetary boundary layers (PBLs) control the exchange processes between the atmosphere and the ocean/land. The key problems of PBL physics are to determine the PBL height, the momentum, energy and matter fluxes ... -
Heat and Mass Transfer Laws for Turbulent Convective Flows in the Atmosphere over Leads in Ice Covered Oceans, C32A-1123, American Geophysical Union (AGU) Fall Meeting, 5-9 December, San-Francisco, USA
Esau, Igor N.; Zilitinkevich, Sergej S. (Conference poster, 2005)Patches of open water (cracks, leads and polynias, Figure 1) in theice cover give major contributions to turbulent exchanges of heat, moisture, CO2 and other gases between the atmosphere and Polar oceans. Here, convective ... -
The Influence of large convective eddies on the surface-layer turbulence
Zilitinkevich, Sergej S.; Hunt, J.C.R; Esau, Igor N.; Grachev, A.A.; Lalas, D.P; Akylas, M.; Joffre, S.M. (Journal article; Peer reviewed, 2006-06)Close to the surface large coherent eddies consisting of plumes and downdraughts cause convergent winds blowing towards the plume axes, which in turn cause wind shears and generation of turbulence. This mechanism strongly ... -
On the Velocity Gradient in Stably Stratified Sheared Flows. Part 2: Observations and Models
Kouznetsov, Rostislav D.; Zilitinkevich, Sergej S. (Peer reviewed; Journal article, 2010-05-12)Observations of the dependence of the dimensionless wind speed gradient φm as a function of the Monin–Obukhov stability parameter z/Lo under strong stability diverge from results of large-eddy simulation (LES) modelling. ... -
Resistance and heat-transfer laws for stable and neutral planetary boundary layers: old theory advanced and re-evaluated
Zilitinkevich, Sergej S.; Esau, Igor N. (Journal article; Peer reviewed, 2005-07)The planetary boundary layer (PBL) resistance and heat-transfer laws express the surface fluxes of momentum and heat through the PBL governing parameters. Since the late sixties, the dimensionless coefficients (A, B and ... -
Universal Dependences between Turbulent and Mean Flow Parameters in Stably and Neutrally Stratified Planetary Boundary Layers
Esau, Igor N.; Zilitinkevich, Sergej S. (Journal article; Peer reviewed, 2006-05-08)We consider the resistance law for the planetary boundary layer (PBL) from the point of view of the similarity theory. In other words, we select the set of the PBL governing parameters and search for an optimal way to ...