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Approximately 9 miles (14 km) wide at its narrowest point, the Strait of Gibraltar is the entry point into the Mediterranean Sea from the Atlantic Ocean. It's bordered by the continents of Africa and Europe, and the countries of Morocco, Spain, the British colony of Gibraltar, and the Spanish exclave of Ceuta. It is the only way for a submarine assigned to patrol the Mediterranean Sea to transit from the Atlantic Ocean. For a submerged submarine a 9 mile opening is considered very narrow and dangerous to transit submerged due to the turbulent currents. However due to the rough surface waters and extensive shipping traffic, the transit is commonly done submerged. The satellite photo to the right shows the compressed water flow as the forces of the Atlantic are pushed through a very narrow opening.
Use vector addition to adjust your dead reckoning location from where you think you are to where you really are.
Activity worksheet (basic): Click Here
Activity worksheet (advanced): Click Here
Students will work with two scenarios of data to calculate a final position. One is for a basic class and one is for a more challenging assignment.