LOCAL SCALE ATMOSPHERIC DIFFUSION AT A COASTAL SITE IN THE PRESENCE OF BREEZE EFFECT. PHASE III - DATA ELABORATION AND MODEL DEVELOPMENT
The aim of this contract is the characterization, from the thermal and anemological point of view, of the lower layers of the atmosphere at a coastal site, affected by breeze circulation. Data were utilized to set up diffusion models for accidental releases of airborne materials, both of short and prolonged duration. Five inland meteorological campaigns, starting from Jan. 1982 (January, April, July., October. 1982, January 1983), have been carried out; an appropriate extension of the contract allowed the execution of two more campaigns in the open sea (April, July. 1983), utilizing the oceanographic ship Bannock kindly supplied by CNR. The analysis of the data showed the development of a well defined IBL during on-shore flow only in Spring and Summer, while an inversion layer was detectable aloft independently of the season (provided that an anticyclonic situation was present). According to those relevant features a simple diffusion model has been developed for short duration releases at local scale. Finally, the analysis and elaboration of the data, collected on site by a meteorological automatic station, allowed the extension of the model to prolonged releases.
Bibliographic Reference: EUR 9673 EN (1985) MF, VOL. I, 81 P., BFR 150, BLOW-UP COPY BFR 405, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989123054600 / Last updated on: 1987-01-01
Available languages: en