NASA: Egypt - Red Sea and Gulf of Aqaba - Strait of Tiran - 08.07.13NASA: Egypt - Red Sea and Gulf of Aqaba - Strait of Tiran - 08.07.13

Posted by ricardo marcenaro | Posted in | Posted on 15:56

Strait of Tiran, Red Sea and Gulf of Aqaba
acquired June 23, 2013 download large image (248 KB, JPEG, 1440x960)
The six-kilometer-wide Strait of Tiran (also called the Straits of Tiran) between the Egyptian mainland and Tiran Island separates the Gulf of Aqaba from the Red Sea. It provides two channels (290 meters and 73 meters deep, respectively) navigable by large ships bound for ports in Jordan and Israel; there is also a smaller passage between the east side of Tiran Island and Saudi Arabia, but this single channel is 16 meters deep. Due to its strategic location, control of the Strait has been an important factor in historical conflicts in the region, including the Suez Crisis in 1956 and the Six-Day War in 1967.
This photograph taken by an astronaut on the International Space Station (ISS) illustrates the morphology of the Strait. The relatively clear, deep-water passages of the western Strait of Tiran are visible at image left, while the more sinuous, shallow-water passage on the Saudi Arabia side can be seen at image top center. Light blue to turquoise areas around Tiran Island indicate shallow water, while the island itself is arid and largely free of vegetation. Coral reefs are also found in the strait and are a popular diving destination.
The silvery sheen on the water surface within the Strait and the south of Tiran Island is sunglint—light reflecting off the water surface back towards the observer on the ISS. Disturbances to the surface, as well as presence of substances such as oils and surfactants, can change the reflective properties of the water surface and highlight both surface waves and subsurface currents. For example, a large wave set is highlighted by sunglint at image lower right.
Astronaut photograph ISS036-E-10628 was acquired on June 23, 2013, with a Nikon D3S digital camera using a 400 millimeter lens, and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center. The image was taken by the Expedition 36 crew. It has been cropped and enhanced to improve contrast, and lens artifacts have been removed. The International Space Station Program supports the laboratory as part of the ISS National Lab to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC Gateway to Astronaut Photography of Earth. Caption by William L. Stefanov, Jacobs/JETS, both at NASA-JSC.
ISS - Digital Camera

NASA: Egypt - Red Sea and Gulf of Aqaba - Strait of Tiran - 08.07.13

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