Pregled bibliografske jedinice broj: 1105977
Improvement of radiation fog prediction using recent development of turbulence closure parameterizations
Improvement of radiation fog prediction using recent development of turbulence closure parameterizations // EGU General Assembly 2019
Beč, Austrija, 2019. str. 1-1 (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 1105977 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Improvement of radiation fog prediction using recent development of turbulence closure parameterizations
Autori
Veljović, Katarina ; Koračin, Darko ; Mesinger, Fedor
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Skup
EGU General Assembly 2019
Mjesto i datum
Beč, Austrija, 07.04.2019. - 12.04.2019
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Paris fog ; radiative fog ; ensemble forecasting ; fog turbulence
Sažetak
Fog is an elusive process with complex interplay of surface energy balance, thermodynamic, radiation, microphysics, and turbulence. Consequently, fog predictions require high-resolution models and detailed physical parameterizations. A study using the regional Eta model driven by ECMWF ensemble has been conducted to investigate formation, evolution, and dissipation of radiation fog over plain terrain. A series of sensitivity tests of turbulence closure schemes on prediction accuracy for a case study was verified based on data about liquid water content, temperature and wind speed. Preliminary results show that the improved formulation of the turbulence length scale calibrated using large-eddy simulation significantly improves prediction accuracy. This length scale increases realistically for decreasing stability which is crucial for conditions conducive to fog formation.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Geofizika, Računarstvo
