| ISS016 Earth Sciences and Image Analysis Photographic Highlights |
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| ISS016-E-19394 |
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| Al Wadj Bank, Saudi Arabia: Saudi Arabia boasts the most coral
reefs of any Middle Eastern country, as it includes coastline along
both the Red Sea and the Gulf of Arabia. This high-resolution
astronaut photograph shows part of the Al Wadj Bank, located along
the northern Red Sea coast. Despite the relatively high salinity of
Red Sea water (compared to other oceans), approximately 260 species
of coral have been documented in the region. Large tracts of the
Saudi Arabian coastline are undeveloped, and reefs in these areas are
in generally good ecological health. However, reefs located near
large urban centers such as Jeddeh have suffered degradation due to
land reclamation (dredging and filling), pollution, and increased
sediment runoff from land. The Al Wadj Bank (a bank is an underwater hill) includes a healthy and diverse reef system, extensive seagrass beds, and perhaps the largest population of dugong—a marine mammal similar to the North American manatee—in the eastern Red Sea. The portion of the Bank in this image illustrates the complex form and topography of the reef system. Several emergent islands (tan) are visible, surrounded primarily by dark green seagrass; the largest is at top left. Only the islands are above the waterline; over the reefs, the water color ranges from light teal (shallow) to turquoise (increasing depth). The southern edge of the reef is well defined by the deep, dark blue water of the Red Sea (top). In recent years, countries that border the Red Sea have cooperated to form a regional conservation plan for reef ecosystems. The plan includes the designation of several Marine Protected Areas (MPAs), integrated coastal management plans, improved pollution controls, reef health monitoring, and public education efforts. The Al Wadj Bank is one of the areas designated as a MPA. |
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This service is provided by the International Space Station program and the JSC Astromaterials Research & Exploration Science Directorate. Recommended Citation: Image Science and Analysis Laboratory, NASA-Johnson Space Center. "The Gateway to Astronaut Photography of Earth." . |
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