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http://dx.doi.org/10.15701/kcgs.2018.24.2.21

Interactive 3D Visualization of Ceilometer Data  

Lee, Junhyeok (Department of Computer Science, Kwangwoon University)
Ha, Wan Soo (Department of Computer Science, Kwangwoon University)
Kim, Yong-Hyuk (Department of Computer Science, Kwangwoon University)
Lee, Kang Hoon (Department of Computer Science, Kwangwoon University)
Abstract
We present interactive methods for visualizing the cloud height data and the backscatter data collected from ceilometers in the three-dimensional virtual space. Because ceilometer data is high-dimensional, large-size data associated with both spatial and temporal information, it is highly improbable to exhibit the whole aspects of ceilometer data simply with static, two-dimensional images. Based on the three-dimensional rendering technology, our visualization methods allow the user to observe both the global variations and the local features of the three-dimensional representations of ceilometer data from various angles by interactively manipulating the timing and the view as desired. The cloud height data, coupled with the terrain data, is visualized as a realistic cloud animation in which many clouds are formed and dissipated over the terrain. The backscatter data is visualized as a three-dimensional terrain which effectively represents how the amount of backscatter changes according to the time and the altitude. Our system facilitates the multivariate analysis of ceilometer data by enabling the user to select the date to be examined, the level-of-detail of the terrain, and the additional data such as the planetary boundary layer height. We demonstrate the usefulness of our methods through various experiments with real ceilometer data collected from 93 sites scattered over the country.
Keywords
data visualization; ceilometer data; 3D visualization;
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