Naslov
Idealised numerical simulations of aerodynamical roughness lenght effects on sea breeze characteristics

Autori
Telišman Prtenjak, Maja

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Air Pollution Modelling and Simulation &#8211 ; Proceedings Second Conference on Air Pollution Modelling and Simulation, APMS'01 / Sportisse, Bruno - Pariz : Springer, 2001, 553-556

Skup
Second Conference on Air Pollution Modelling and Simulation, APMS'01,

Mjesto i datum
Pariz, Francuska, 09.04.2001. - 12.04.2001

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Coastal meteorology; roughness length; sea breeze; sea breeze front

Sažetak
A two-dimensional hydrostatic meso-gamma-scale model is used to study possible effects of a step change in roughness on the daytime sea breeze (SB). Idealised numerical simulations with the length of aerodynamical roughness (z0) ranging from 0.05m to 1.0 m and by an increase of 0.05 m in all land surface grid points were made. Two z0 effects could be pointed out: an increase in the mixing process and a reduction in the wind speeds in the surface layer. An increase of both heights and magnitudes of the SB circulation, caused by a vertical extension of the turbulent field, followed by a faster inland penetration of the SB. The second effect resulting from a successive increase in z0 values was a retardation of the sea breeze front near the ground, visible in its slope. This effect allowed the already faster inland penetration of the marine air high above the land.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

POVEZANOST RADA