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Our Video Sunday feature continues with a new visualization created by the Advanced Visualization Laboratory at NCSA that shows the dramatic evolution of hurricane Katrina.
“The video is a 36-hour time-lapse that shows the hurricane unfold in unprecedented detail, as it gathers momentum over the Bahamas. In the beginning, warm water evaporates from the ocean and condenses in the atmosphere to form storm clouds and rain. This process releases latent heat from the water vapour and warms the surrounding air, effectively feeding energy to the system. This sustains an area of extremely low pressure accompanied by warm air in the central eye, which causes powerful winds to spiral inwards. In this video, warm rising air is represented in yellow while colder sinking air is shown in blue.”
