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Wave clouds near Ile aux Cochons
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Wave clouds near Ile aux Cochons
March 25, 2012 - Wave clouds near Ile aux Cochons. This photograph illustrates the formation of wave clouds in the wake or downwind side of Ile aux Cochons (Isle of Pigs) located in the Southern Indian Ocean. The island itself, of which only a part of the eastern coastline is visible at center, is volcanic in origin with a summit elevation of 775 meters above sea level. The summit elevation is high enough for the land surface to interact with cloud layers and winds flowing past the island. Two major cloud layers are visible; a lower, more uniform layer consists of roughly parallel cloud streets that suggest a westerly flow pattern of air. When the air mass encounters the Ile aux Cochons, moisture-laden air rises and cools, causing more water vapor to condense into clouds. As the air mass passes over the summit of Ile aux Cochons and descends, it may encounter alternating moist and dry air layers, enabling the formation of the discontinuous chevron-shaped wave clouds in the wake of the island. While their appearance suggests that the clouds are forming in the wake of the island and moving eastwards, in fact it is the air mass that is moving, with clouds forming in regions of moist air and dissipating in dry regions
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Media ID 13065577
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Antarctic Atmosphere Cloud Streets Earth Science Flowing Formation Geography Indian Ocean Island Pattern Airflow Moisture View From Space
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This print captures the mesmerizing phenomenon of wave clouds near Ile aux Cochons in the Southern Indian Ocean. The image showcases the formation of these unique cloud patterns on the downwind side of the volcanic island. The photograph reveals two distinct cloud layers, with a lower layer displaying parallel cloud streets that indicate a westerly flow pattern. As moist air encounters Ile aux Cochons, it rises and cools, causing water vapor to condense into clouds. When this air mass passes over the island's summit and descends, it encounters alternating moist and dry air layers, resulting in the creation of chevron-shaped wave clouds behind the island. Although these clouds appear to be moving eastwards, it is actually the movement of the air mass that gives this illusion. Clouds form where there is moisture in the atmosphere and dissipate when encountering drier regions. The photograph beautifully illustrates nature's intricate dance between land surfaces, wind currents, and atmospheric conditions. It serves as a reminder of how our environment constantly interacts to create stunning natural phenomena like these wave clouds near Ile aux Cochons.
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