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Field studies on the generation of sea salt sprays and the reduction of its tronsportation by imitation greenery

Publication year Port and Airport Research Institute Report 034-04-01 1995.12
Author(s) Kazuo MURAKAMI,Kazumasa KATOH,Katsuyoshi SHIMIZU,Shinichi YANAGISHIMA,Satoshi NAKAMURA,Yasushi OZAKI,Masato FUKUDA,Kenji MIYAZAKI,Kuniaki YAMADA,Danwo NISHIMORI
Department
/Divison
Marine Environment Division Environmental Assessment Laboratory
Executive Summary

 This paper describes the field investigations of the generation of sea salt sprays from the sea surface and the reduction of the spray transportation by greenery planted in the coast. This field studies were carried out at Hazaki-Coast in the Sea of Kashima, Ibaraki Prefecture. The field measurements of the spray generations were carried out on the observation pier of the HORF (Hazaki Oceanographical Research Facility), and the measurements of spray transpotation were carried out the sandy beach.
 From the results, it is shown that the amount of the spray generated from the sea surface is related to the relative velocity between wind velocity and wave velocity at the wave breaking zone, but the spray is transported to the land only when the wind is blown from the sea to land. The amount of the spray attached to the gauze is expressed by the concentration of salt in the atmosphere multiplies the volume of air touched to the gauze. It is confirmed that the amount of sparay attached to the gauze is reduced behind the false greenery net, and the amount of spray falled down to the land is very small.

PDF File /en/pdf/en/vol034-no04-01.pdf