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| Dr. Hironobu Iwabuchi received the SGI award for excellent Visualized Image by the Viualization Society
of Japan in July 2005. He introduces the visualization of clouds and sky using physical models and the
three-dimensional atmospheric radiative transfer model he has developed. |
Hironobu Iwabuchi
Hydrological Cycle Research Program
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| The skies we can see day-by-day show different visions by
the weather and the condition of the air. Clouds are the most
important players to determine the vision, which can vary by
the kind of cloud, spatial arrangement of clouds, and the
direction of solar beam. We can sometimes observe fantastic
optical phenomena. Visual simulation of natural objects such
as clouds, smokes, fires, and water is one of important
research areas of computer graphics. Clouds are especially
important for simulation of realistic vision of sky. Empirical,
simplified treatments have been applied for visual simulation
of cloudy skies, mainly because of limited computational
power. However, more realistic visions can be obtained if
physics-based models are applied. |
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Fig. 1 A vision of fair weather cumulus clouds, looking down from the upper: a computer graphic. |
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