1.        Wooldridge, G. L. and E. L. McIntyre II (1986): The dynamics of the planetary boundary layer over a heated mountain slope. Geofizika, 3, 3-21.  

 

ABSTRACT:

 

The thermal structures and airflows of upslope circulations over mountain slopes were measured with temperature sondes on dualtheodolite tracked pilot and mylar superpressured balloons. Measurements were made during the development period of morning hours and the quasi-stationary period of early afternoon.

Upslope flows began shortly after sunrise, and quickly became deeper and stronger. By late morning, the flow field was fully established in a deep layer of a neutral atmosphere.

The potential temperature fields in vertical cross sections perpendicular to the slopes were analyzed. Data were used to calculate the solenoidal energies during periods of afternoon quasistationarity, up to heights of 800 meters above the bases of the slopes. The kinetic energies and the vertical fluxes of horizontal momentum computed for the flows over the same slopes for the same periods determined that the upward vertical fluxes reached a maximum a few hundred meters above the slope and decreased at higher elevations. The levels of upward flux divergence of horizontal momentum coincided with the levels of maximum solenoidal energy.

 

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2.        Šinik, N. (1986): One-dimensional spectral analysis of the eddy available potential energy growth over a limited region. Geofizika, 3, 23-33.

 

ABSTRACT:

 

The paper describes development processes on their energetic basis. A special emphasis is given to the role of the eddy available potential energy, Ae arising out of zonal available potential energy, AZ. The process of energy transition C(AZ Ae) can be estimated in the wave number domain by means of a cospectral function fn(H,T) of the isobaric surface height H and the temperature T. IN cases of baroclinic instability prevalence, the fn(H,T), if determined along a cross-sectional line over a limited region, may help the forecast of a given eddy scale development, relevant for that region.

 

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3.        Penzar, I. and B. Penzar (1986): On the properties of some bounded U- and J- distributions. Geofizika, 3, 35-47. (in Croatian) 

  

ABSTRACT:

 

Some characteristics of the probability density function in the form of a bounded part of a parabola – especially the first two moments, the median, and the intervals with the largest probabilities – are discussed. It is shown that the median, as well as the mean, gives a poor information on the location of the most frequent values, and that the variance cannot be considered as a parameter of dispersion. The way of fitting the function to the empirical histograms is briefly described. The results may be useful in the statistical analysis of relative sunshine duration and cloudiness data. 

 

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4.        Milošević, A. (1986): Some properties of partial derivatives of the Love wave dispersion function. Geofizika, 3, 49-62.

 

ABSTRACT:

 

The paper is systematically presents how, by applying the implicit function theorem, the problem of determining partial derivatives of the phase and group velocities of the Love surface wave is reduced to the derivation of the dispersion function with respect to independent variables. In addition to that, two relations are derived which are valid among the partial derivatives of the dispersion function of the Love wave phase velocity in a n+1 layered solid medium according to independent variables. It is shown that these relations serve to check the numerical values of the partial derivatives, and they can be used for checking computer programmes of the linear inversion structure calculation.

 

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5.        Kuzmić, M. (1986): Wind curl vs variable eddy viscosity: A Northern Adriatic related modelling study. Geofizika, 3, 63-74.

 

ABSTRACT:

 

The influence of different magnitudes of the vertically constant eddy viscosity, as well as heterogeneity in the wind field, on the wind induced motions in the Northern Adriatic has been considered in several recent modelling studies. Those studies, incorporating partial field data verification, have suggested several lines of improving the Northern Adriatic model predictions, among them more adequate treatment of the vertical eddy viscosity. This paper presents preliminary results of the Northern Adriatic model that allows for the vertical variable eddy viscosity. The results indicate an improvement in current field prediction which has been called for by previous model to data comparisons. 

 

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6.        Limić, N. and M. Orlić (1986): Objective analysis of geostrophic currents in the Adriatic Sea. Geofizika, 3, 76-84.

 

ABSTRACT:

 

The first results of the objective analysis of geostrophic currents in the Adriatic Sea are presented. Data collected during the “Andrija Mohorovičić” cruise in September and October 1974 are used for computing relative dynamic depths. These are then interpolated on a rectangular grid points, using a first-order polynomial for approximating the mean depths, and applying both the isotropic and anisotropic autocorrelation functions. The objectively analyzed surface currents, computed relative to those at the 50dbar surface, show a similarity with the results of subjective analysis only for the anisotropic autocorrelation function. It is concluded that detailed measurements are needed to assess the statistics of relative dynamic depths. Moreover, the problem of aliasing should be considered, and a method for transforming relative into absolute should be applied to the Adriatic Sea data.

 

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