Izvorni znanstveni članak
MOUNTAIN DRAG AND SURFACE PRESSURE VARIATIONS DURING SEVERE ADRIATIC BORA STORMS
Vesna Jurčec
; Hydrometeorological Institute of Croatia, Zagreb
Sažetak
The observed sea-level pressure variations in Senj and pressure dilference Zagreb-Senj are presented for 197 observations in 17 case studies considering only the most severe bora storms in Senj from the period 1957-1986. Using Smith's (1985) hydraulic theory with the continuous stratification model, mountain drag is calculated predicting the pressure difference across the mountain in these bora evbnts.
It is shown that the theory can predict well the pressure difference in cases when the atmospheric state is close to the idealized modeling structure. However, due to constraints in the presented model there is a relatively-small sampling of such cases, although the real atmosphere allows some reasonable modifications of hydraulic
parameters which would be unnecessary if the flow were truly two-dimensional and steady.
Ključne riječi
severe bora; hydraulics; mountain drag; surface pressure variations; hydrostatic bora layer; Adriatic storms
Hrčak ID:
69054
URI
Datum izdavanja:
10.12.1990.
Posjeta: 614 *