基于GIS的目平湖泥沙冲淤变化空间定量分析
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Release time:2023-03-16 Journal:中南大学学报（自然科学版） Key Words:泥沙冲淤; 空间定量分析; GIS; 目平湖; 洞庭湖 Abstract:针对洞庭湖泥沙研究大多基于物 理与数学方法的现状,为实现泥沙冲淤变化的空间定位与可视化,基于GIS的空间数据处理与空间分析,提出泥沙冲淤变化空间定量计算与分析的综合方法.其步 骤是:通过收集水下地形数据,建立数字高程模型;根据不同时间的高程模型计算容积及其变化;对冲淤区域进行空间划分,计算各区域冲淤量;总结泥沙冲淤的总 体与局部规律.选择西洞庭目平湖,运用该方法,定量计算其库容,分析湖底地形变化情况,对冲淤变化区域进行空间划分,最后分析并总结其冲淤变化规律.研究 结果表明:目平湖约85.42%处于淤积状态,少部分处于冲刷状态,北部淤积现象较严重,泥沙淤积由北向南,由西向东减少. First Author:Jiqiu Deng Indexed by:Journal paper Document Type:J Volume:38 Issue:5 Page Number:1000-1006 Translation or Not:no Date of Publication:2007-10-01 Included Journals:EI -
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