Phenomena

Cloud Wakes Off Islands

This satellite image shows the cloud wakes of two small, volcanic islands off the coast of Chile. The disruption in airflow caused by the islands results in 100 km long cloud-free V-shaped wakes, even though the islands themselves are barely visible in the image. Such variation in the size of the obstacle compared to its effect is not unusual in fluid mechanics, but the scale, in this case, is impressive. #

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