项目名称: 综合InSAR与GPS江苏沿海湿地储水量变化监测研究
项目编号: No.41204002
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 地球物理学和空间物理学
项目作者: 何敏
作者单位: 河海大学
项目金额: 25万元
中文摘要: 研究大范围湿地储水量变化信息的高精度提取对实现江苏沿海湿地"保护中利用,利用中保护"的开发利用方式具有重要的意义。本项目针对传统湿地监测中存在分辨率低、监测范围小、工作周期长等不足,研究综合InSAR 和GPS 湿地储水量变化监测方法实现过程中的各关键技术,探索高水汽影响和低相干条件下InSAR 湿地监测新方法。主要研究内容包括:GPS 和NCEP FNL 综合方法校正InSAR 大气影响,综合多基线InSAR 和GPS 提取沿海湿地高精度数字高程模型,湿地地区低相干性条件下的InSAR 水位监测解算新方法研究,综合InSAR 和GIS提取湿地表层流覆盖变化范围,结合典型实验区,利用研究方法进行综合实验验证和精度分析。
中文关键词: InSAR;湿地;储水量监测;GPS;
英文摘要: For realize the development and utilization way of "protection in use, use in protection" in jiangsu coastal wetland, high-precision extraction of large-range water storage has the vital significance. For the traditional wetland monitoring methods has the shortcomings of low resolution, small monitoring range and long work cycle, the project study the key techniques of wetland water storage monitoring by using InSAR and GPS integration and research new wetland-InSAR monitoring methods under the conditions of high water vapor and low-coherence. The project is focused on the following key issues: (1) InSAR atmospheric delay correction using GPS and NCEP FNL integration method; (2) high accuracy DEM extraction in coastal wetland using multi-baseline InSAR and GPS integration method; (3) research new methd of InSAR water monitoring under low coherence condition; (4) wetland surface water storage change acquistion using InSAR and GIS integration method. With the typical experimental areas, the new wetland-InSAR monitoring methods are validated and the accuracy is analyzed.
英文关键词: InSAR;wetland;Water storage monitoring;GPS;