A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a method for quantifying river-lake intersection in river-lake intersection river channel based on lake water level-flow and water level-area relationship. The method comprises the following steps that S1, grouping is carried out on water level and flow data of branch lake outlets in equal-flow intervals of main flow, and a water level-flow relationship curve of the lake outlets in each group are constructed; S2, the average distance between every two adjacent lines in the lake outlet series water level-flow relationship curve is calculated, and water level changes, caused by hydrological condition changes of the main flow, of branch lakes under the same flow are extracted; S3, a lake water area distribution area is interpreted based on a remote sensing image, and a lake water level-area relationship curve is constructed with actually measured water level data; and S4, the lake water storage change corresponding to the lake outlet water level change in the step S2 is calculated in combination with the lake water level-area relationship curve. The method is suitable for the river (lake) intersection river channel with complex hydrological and hydrodynamic interaction, and meanwhile, the operation method is simple and convenient and is convenient to popularize and apply.
本发明公开了一种基于湖泊水位‑流量与水位‑面积关系的江湖交汇河道江湖交互作用量化方法，包括如下步骤：S1、以干流等流量区间对支流湖出口的水位、流量数据进行分组，构建各分组中湖泊出口的水位‑流量关系曲线；S2、计算湖泊出口系列水位‑流量关系曲线中各相邻两条线间的平均距离，提取干流水文条件变化导致的支流湖同流量下的水位变化；S3、基于遥感影像解译湖泊水域分布面积，与实测水位数据构建湖泊水位‑面积关系曲线；S4、结合湖泊水位‑面积关系曲线计算S2中湖泊出口水位变化对应的湖泊蓄水量变化。本发明适用于存在复杂水文水动力交互的江(河)湖交汇河道，同时操作方法简便，便与推广和应用。
The invention discloses a method for quantifying river-lake intersection in river-lake intersection river channel based on lake water level-flow and water level-area relationship. The method comprises the following steps that S1, grouping is carried out on water level and flow data of branch lake outlets in equal-flow intervals of main flow, and a water level-flow relationship curve of the lake outlets in each group are constructed; S2, the average distance between every two adjacent lines in the lake outlet series water level-flow relationship curve is calculated, and water level changes, caused by hydrological condition changes of the main flow, of branch lakes under the same flow are extracted; S3, a lake water area distribution area is interpreted based on a remote sensing image, and a lake water level-area relationship curve is constructed with actually measured water level data; and S4, the lake water storage change corresponding to the lake outlet water level change in the step S2 is calculated in combination with the lake water level-area relationship curve. The method is suitable for the river (lake) intersection river channel with complex hydrological and hydrodynamic interaction, and meanwhile, the operation method is simple and convenient and is convenient to popularize and apply.
本发明公开了一种基于湖泊水位‑流量与水位‑面积关系的江湖交汇河道江湖交互作用量化方法，包括如下步骤：S1、以干流等流量区间对支流湖出口的水位、流量数据进行分组，构建各分组中湖泊出口的水位‑流量关系曲线；S2、计算湖泊出口系列水位‑流量关系曲线中各相邻两条线间的平均距离，提取干流水文条件变化导致的支流湖同流量下的水位变化；S3、基于遥感影像解译湖泊水域分布面积，与实测水位数据构建湖泊水位‑面积关系曲线；S4、结合湖泊水位‑面积关系曲线计算S2中湖泊出口水位变化对应的湖泊蓄水量变化。本发明适用于存在复杂水文水动力交互的江(河)湖交汇河道，同时操作方法简便，便与推广和应用。
Method for quantifying river-lake intersection in river-lake intersection river channel based on lake water level-flow and water level-area relationship
一种基于湖泊水位-流量与水位-面积关系的江湖交汇河道江湖交互作用量化方法
DAI XUE (author)
2021-07-13
Patent
Electronic Resource
Chinese
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