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
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.
 
Frontier Newsletter/No.30
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