Tropical hurricanes and transport of water in the atmosphere

The Nansen Center contributes to the NRKs "extreme weather week" with a study that explains the basics of tropical hurricanes and their relations to the transport of water in the atmosphere.

This is illustrated with an animation of the hurricane Katrina that hit New Orleans in year 2005. The moisture and precipitation products used for the animation are obtained from the European Centre for Medium-Range Weather Forecast (ECMWF) that provides data every three hours with a spatial resolution of approximately 40 km. The atmospheric moisture content is visualized in white and the precipitation in pink colors while a NASA picture of the earth, as it looks from the sky, is shown in the background.

The animation is made for the "Magic Planet" exhibition in the Bergen Science Centre (VILVITE) where they are projected onto a human sized glass sphere.

This "extreme weather week" article can be found at www.yr.no:

http://www.yr.no/ekstremveruka_2007/1.3493327

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