engleski

Modification of the wind field due to effects of the hypotetical extension of Rijeka

As the coastal urban population increases in the Croatia, a permanent motivation for a comprehensive investigation of the urban influence on the local meteorological conditions is necessary. Therefore, in this study, the aim is to evaluate the urban influence of a town Rijeka on the wind field, which is situated in the Northern part of the Adriatic Sea. Since Rijeka is situated in the complex coastal terrain, Rijeka area represents a region of the very complex wind regime where an interaction among sea/land breezes, urban heat island circulation and mountain and slope winds exists. For this purpose, a three-dimensional nonhydrostatic MEsoscale MOdel (MEMO6) is used to study possible effects of urban area on the daytime wind regime. To minimize the effects of the large scale wind, the summertime anticyclonic weather situation was selected. Apart from the current state simulation, we performed two additional numerical simulations for the same input parameters. The first simulation was done without any urban points, which describe Rijeka urban area. The second simulation describes a hypothetical widening of Rijeka town and results showed a possible urban influence on the wind field.

mesoscale circulation; sea breeze

nije evidentirano