| 基于长时间序列遥感数据的鄱阳湖水面面积监测分析 |
| |
| 引用本文： | 张文,崔长露,李林宜,贾祎琳,孟令奎.基于长时间序列遥感数据的鄱阳湖水面面积监测分析[J].水文,2019,39(3):29-35. |
| |
| 作者姓名： | 张文 崔长露 李林宜 贾祎琳 孟令奎 |
| |
| 作者单位： | 武汉大学遥感信息工程学院 |
| |
| 基金项目： | 国家重点研发计划项目(2017YFC0405806)； |
| |
| 摘 要： | 国产高分辨率卫星的快速发展可有效弥补遥感湖泊监测中影像分辨率不足的问题,更加及时、准确地实现湖泊动态监测。利用1996～2012年155景Landsat影像和2013～2016年34景GF影像为数据源,结合湖口站水位监测数据,分别选用改进的归一化差异水体指数MNDWI和归一化差异水体指数NDWI方法提取卫星遥感影像的水体信息,同时采用统计分析的方法建立了4个时间段的鄱阳湖水体面积-水位关系模型。结果表明:在空间上,鄱阳湖水体面积整体呈现缓慢缩小的趋势;在时间上,除秋季鄱阳湖面积有明显下降趋势外,其他季节整体趋势变化不大;经验证,鄱阳湖四季水体面积-水位呈现二次函数关系。
|
| 关 键 词： | 遥感 长时间序列 水位 水体面积 鄱阳湖 |
| 收稿时间： | 2017/12/13 0:00:00 |
Analysis of Relationship between Water Area and Water Level Based on Long-term Observation in Poyang Lake |
| |
| ZHANG Wen,CUI Changlu,LI Linyi,JIA Yilin,MENG Lingkui.Analysis of Relationship between Water Area and Water Level Based on Long-term Observation in Poyang Lake[J].Hydrology,2019,39(3):29-35. |
| |
| Authors: | ZHANG Wen CUI Changlu LI Linyi JIA Yilin MENG Lingkui |
| |
| Abstract: | Abstract: The rapid development of domestic high-resolution satellites can effectively compensate for the low special resolution in lake monitoring with remote images, and realize dynamical monitoring on Lake without delay and better accuracy. This paper took 155 Landsat imagines during 1996-2012 and 34 GF images during 2013-2016 as the data sources, modified normalized difference water index (MNDWI) and normalized difference water index (NDWI) were chosen to extract the water area in remote sensing images combined with the water level data at Hukou station. At the same time, the method of statistical analysis was established to build different water area-water level models in four seasons. The results show that the water area of Poyang Lake has a gradually declining trend in space, and it shows obvious decrease in autumn while slight change in other seasons. The relationship between water area and water level of Poyang Lake is suitable for quadratic function model after data validation. |
| |
| Keywords: | remote sensing long-term water level water area Poyang Lake |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《水文》浏览原始摘要信息 |
| 点击此处可从《水文》下载免费的PDF全文 |
|
