| Technology Application |
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Simulation Research on the Water Level of the Poyang Lake Based on World Wind Technology |
| QI Xiao-ming1,2, DU Pei-jun2, WANG Ying-chun2,3, JIN Ju-liang4, XU Shan-jian1 |
1. Computer Science and Technology Department of Bengbu College, Bengbu 233000, China;
2. Department of Remote Sensing and Geographical Information Science, China University of Mining and Technology, Xuzhou 221116, China;
3. Hydrology and Water Resources and Hydraulic Engineering Laboratory, Hohai University, Nanjing 210098, China;
4. School of Civil Engineering, Hefei University of Technology, Hefei 230009, China |
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Abstract World Wind is an open source (released under the NASA license) virtual globe developed by NASA. The program provides a platform for digital earth and 3D GIS. The realization of the compacted 2-3D coupling of multi-source data is one of the problems in the process of developing professional system based on World Wind. In the.Net development environment, taking World Wind as the simulation kernel, the authors developed the water level simulation plug-in, studied the 2-3D coupling of data technology, and realized the lake & channels’ flood inundation risk analysis and 3D roaming of the Poyang ecological economic development zone. The results show that the simulation system can realize smoothly the real-time information query at any point in such aspects as terrain elevation, water level and submerged depth, and navigation level. The submerged range of the Poyang Lake is also simulated under different water-control conditions. The results can serve the decision-making regulation of Poyang Lake water conservancy hub.
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| Keywords
standard deviation anomaly
dynamic threshold
cloud detection
HJ-1B
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Issue Date: 03 June 2012
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2012,
Vol. 24
