caa a22 4500 475777417 CHVBK 20180406123634.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1023/A:1002490423389 doi (NATIONALLICENCE)springer-10.1023/A:1002490423389 Nakanishi Mikio Japan Weather Association, Toshima, 170-6055, Tokyo, Japan aut Large-Eddy Simulation Of Radiation Fog [Elektronische Daten] [Mikio Nakanishi] In order to study the three-dimensional structure of radiation fogand to obtain a basic understanding of its generation mechanism,a numerical experiment is performed with a large-eddysimulation model and compared with the observation at Cabauw in the Netherlands. After confirming that the results are insatisfactory agreement with the observations, the structure of thefog and its generation mechanism are examined in more detail. Before the fog forms, the atmosphere is stable and an inversionlayer exists almost adjacent to the ground surface. As the fog grows, however, the stratification is destabilized and a mixed layerdevelops gradually. The longwave radiative cooling near thefog top contributes to the destabilization more than thecondensational heating does. The evolution of the fog can be classified into three stagesaccording to the behaviour of turbulent kinetic energy (TKE):formation, development, and dissipation stages.The fog layer has different flow structures at each stage.During the formation stage, longitudinal rolls similar tostreaks in channel flows appear near the ground surface.The development stage is characterized by an initiation oftransverse bands due to Kelvin-Helmholtz instability anda sudden increase of TKE. During the dissipation stage, longitudinalrolls and polygonal cells due to convective instability are organized. Kluwer Academic Publishers, 2000 Radiation fog nationallicence Large-eddy simulation nationallicence Turbulence nationallicence Kelvin-Helmholtz instability nationallicence Convection nationallicence Mixed layer nationallicence Boundary-Layer Meteorology Kluwer Academic Publishers 94/3(2000-03-01), 461-493 0006-8314 94:3<461 2000 94 10546 https://doi.org/10.1023/A:1002490423389 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002490423389 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Nakanishi Mikio Japan Weather Association, Toshima, 170-6055, Tokyo, Japan aut NATIONALLICENCE 773 0- Boundary-Layer Meteorology Kluwer Academic Publishers 94/3(2000-03-01), 461-493 0006-8314 94:3<461 2000 94 10546 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer