| 青海湖湖面变化三维可视化分析 |
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| 引用本文： | 齐丽丽,刘勇,董春雨.青海湖湖面变化三维可视化分析[J].地理空间信息,2009,7(2):57-58. |
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| 作者姓名： | 齐丽丽 刘勇 董春雨 |
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| 作者单位： | 兰州大学资源环境学院,甘肃兰州,730000 |
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| 基金项目： | 国家基础科学人才培养基金，兰州大学秦惠君(上竹下君)李政道基金 |
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| 摘 要： | 建立了包含青海湖水下地形的流域DEM（LBD）；利用LBD和各时期水位数据，计算湖泊面积和水量；利用LBD和遥感影像，通过三维可视化技术，最终实现一万多年来湖面时空变化的动态模拟。结果表明，青海湖东西两岸的退缩幅度明显大于南北两岸，水位降低对于青海湖湖岸形态有很大的影响；利用恢复水下地形来进行水量计算，简单易行。
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| 关 键 词： | 青海湖 水下地形 湖面变化 湖泊水量 三维模拟 |
Three-Dimensional Visualized Analysis of the Qinghai Lake Surface |
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| QI Lili,LIU Yong,DONG Chunyu.Three-Dimensional Visualized Analysis of the Qinghai Lake Surface[J].Geospatial Information,2009,7(2):57-58. |
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| Authors: | QI Lili LIU Yong DONG Chunyu |
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| Institution: | College of Earth and Environment;Lanzhou University;Lanzhou 730000;China |
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| Abstract: | A lake bed DEM (LBD) was first established, the surface area and volume of lake water in different periods were estimated using LBD combined with the water level data and the changes in surface area and volume were animated using LBD and remote sensing images. Results show that the lake shore retreated through the periods, while the rate of retreat in east and west sides is more visible than north and south sides. The water level retreat has a great impact on the lakeshore shape; the use of SSM for the calc... |
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| Keywords: | Qinghai Lake lake bed topography surface change water volume three-dimensional simulation |
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