حضور دریادلان را گرامی میداریم
مطالب خواندنی در باره دریا،دریانوردی، فرهنگي و زيست محيطي
قالب وبلاگ

Abstract
The decline in horizontal visibility has always been regarded as one of the meteorological factors effective in marine collisions, which is why the necessary precautions to be taken and the installment and use of proper navigational aids have become obligatory in maritime conventions. In this research, we have studied and evaluated the effect of the decline in horizontal visibility in the collisions that have occurred in the Persian Gulf and the Oman Sea in the first decade of the present century (2001-2010) in order to find out whether there has been a positive correlation between the number of the collisions and the decline in the horizontal visibility as well as between the frequency of the decline in the horizontal visibility and the increase in marine freight rate. The analysis and assessment of the data based on the statistics gathered from eleven synoptic meteorological stations in the southern borderline of the Iranian coasts and the number of the marine collisions recorded in the region by the Ports and Maritime Organization and also expert survey in the society of Iranian Expert Seafarers all lead to the conclusion that the phenomenon of haze as one of the environmental elements, is the first declining factors in the horizontal visibility of the region and is logically correlated with the number of marine collisions. However, there is no logical correlation between the number of the days with a decline in the horizontal visibility and the increase in marine freight rate. On the whole, it could be concluded that considering the logical correlation existing between the phenomenon of haze and the collisions in regions like the Hormuz Strait – the western part of it in particular – and the mouth of the Arvand River, which have had larger numbers both of days with a decline in the horizontal visibility and of marine collisions, the navigation of the ships is to be conducted with utmost care and a greater deal of caution
Key words:
haze, horizontal visibility, marine accidents, marine collisions, synoptic meteorological stations

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درباره وبلاگ

با سلام، بیائید زمین را پاک بداریم dear all, lets care more about our environment
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