Summary of Abstract Submission

Abstract Submission No. IO50-10-0002PresentationOral

UNDERSTANDING TROPICAL CYCLONE AND ASSESSMENT OF THE IMPACT OF WIND SYSTEMS ON PORTS AND SHIPPING OPERATIONS IN THE NIGERIAN MARITIME INDUSTRY

EDIANG OKUKU ARCHIBONG*1

1 SOUTH SOUTH MARINE COORDINATOR NIGERIAN METEOROLOGICAL AGENCY EKE, NIGERIA

ABSTRACT :

Wind systems, earthquakes, volcanic eruption and landslides generates waves while tides are as a result of gravitational attraction of the moon and sun. Winds are by far the most common causes of observed ocean waves. Two air streams affect the weather over the coast of Nigeria especially in the southwest- the southwest monsoons from South Atlantic Ocean in summer and the dry and dusty northeast trade wind from the sahara anticyclone in winter. Daily wind speed and direction were graphically analyzed to obtain the mean monthly values and relative frequency of occurrence analysis to determine the proportion of times that a particular wind strength and direction occurs for the period. Analysis of speed, direction and duration of wind shows that wind speed is high towards the beginning of the year around March and shipping activities is also high towards this period while it is lower towards the end of the year around October. The effect of wind system over ports and habour areas in Nigeria revealed a predominantly WSW and WNW direction. Generally, Nigeria coastal area experiences mainly the south westerly which is en-shore and continued to azimuths of 2150 - 2660 with velocities of 2-5m/s.