Dynamic boundary conditions and boundary layer approach to the wind-driven linear circulation problem

Boundary layer techniques are applied to a class of wind-driven, linear circulation models in which a wide set of dynamic boundary conditions are allowed. The results show that i) the eastern solution always exists and its O(1) component coincides with that of Sverdrup; ii) only a well-defined subset of boundary conditions are consistent with solutions representing, at least qualitatively, a typical subtropical gyre and, finally, iii) it is possible to employ infinite choices of boundary conditions which correspond to the same boundary layer solution

On the dynamical conditions concomitant with the bottom anoxia in the Northern Adriatic Sea: A numerical case study for the 1977 event

The aim of the present investigation is to explain the dramatic phenomenon of anoxia/hypoxia waters observed in the Northern Adriatic Sea during August 1977 by using the data collected in the DINAS 2 oceanographic campaign and modelling them by means of a three-dimensional numerical model for the Whole basin. The model has been forced with ECMWF surface reanalysis data—wind stress, heat fluxes and river discharges. The main result lies in the high temporal and spatial correlation between the observed anoxia areas and the centres of anticyclonic circulation produced by the model. Further investigations seem to be necessary for a better matching between observed and simulated thermohaline fields

Intersecting Architectural Surfaces Between Graphic and Analytic Representations

Representing an architectural shape, mediating design/formal/semantic needs, means respecting its specificity according to the purposes with which one operates; therefore, teaching how to represent an architectural shape is a complex operation, especially if this happens in the first year of the degree course in Architecture where the heterogeneity of students' background requires a preliminary definition of a common language. Students are firstly introduced to theoretical geometries which underlie architectural shapes. So, they have to know the basis of Geometry (both Descriptive and Analytical) in order to proceed within these issues. This process requires to underline the two `souls' of architectural shapes: the theoretical and the build one. Moreover, it also leads to investigate two different types of theoretical shapes: the one that lies behind the design idea and the other one which underlies the built. We propose teaching examples focused on reading architectural shapes as a result of intersections of surfaces

CHARACTERISATION OF PGI LARDO DI COLONNATA

To characterize Lardo di Colonnata IGP, 24 samples of lard, obtained from 3 producers of Consortium, have been analyzed during the 6 months of ripening, from raw material to finished product. The results of microbiological and physical-chemical analyses confirm that this product is characterized by early stability, attributable to the composition of the product itself, composed of over 90% lipids, and to the production technology

LA SCENA NUOVA

IDENTITà CULTURA ITALIA ARCHITETTURA SCUOL

GENERAZIONI E PROGETTI CULTURALI

a cura di Franco Purini e Dina Nencin

L'architettura didattica

si tratta della seconda edizione dello stesso libro pubblicato nel 1980 nato dalle lezioni di Franco Purini a Reggio Calabri

A note on the dynamic boundary conditions in Munk-like circulation models

The present note deals with Munk's ocean model and proposes an alternative approach to find its solution, with special regard to the western boundary layer. We introduce a suitable “distance” between the related Sverdrup streamfunction and all the admissible streamfunctions which are valid in the western boundary layer. We prove that such distance has a minimum that singles out a unique solution. Unlike the traditional method, this procedure works without assuming a priori any dynamic boundary condition