摘要：【中文】本发明公开了一种无水下地形资料的堰塞湖水量库容遥感快速测定方法，步骤如下：S1：提取山体阴影遮挡下的堰塞湖水域淹没面积；S2：根据堰塞湖水域面积分布，计算出堰塞湖多边形中心线位置；S3：基于中心线位置，对堰塞湖进行定点高程测量与湖床中线高程拟合估算；S4：通过定点高程测量和湖床中线高程拟合估算并结合边坡高程信息，对堰塞湖未知水下地形自适应模拟；S5：根据模拟水下地形和堰塞湖水域淹没面积，采用三维曲面空间离散积分测算出堰塞湖库容水量。本发明避免了传统手段的局限性，减少了数据依赖，有效提高了信息的时效性和数据不完备地区堰塞湖水量估算的精度和效率，实现了基于完全遥感的堰塞湖水量精确测定和库容曲线绘制。 【EN】The invention discloses a remote sensing rapid determination method for reservoir capacity of a dammed lake water of waterless underground shape data, which comprises the following steps: s1: extracting the submerged area of the water area of the barrier lake shielded by the mountain shadow; s2: calculating the position of the polygonal central line of the barrier lake according to the area distribution of the water area of the barrier lake; s3: based on the position of the central line, performing fixed-point elevation measurement on the barrier lake and performing elevation fitting estimation on the central line of the lake bed; s4: self-adaptive simulation is carried out on the unknown underwater topography of the barrier lake by measuring the fixed point elevation and fitting and estimating the elevation of the centerline of the lake bed and combining the elevation information of the side slope; s5: and measuring the water capacity of the barrier lake reservoir by adopting three-dimensional curved surface space discrete integration according to the simulated underwater topography and the water area inundation area of the barrier lake. The method avoids the limitation of the traditional means, reduces data dependence, effectively improves the timeliness of information and the accuracy and efficiency of the estimation of the water quantity of the barrier lake in the area with incomplete data, and realizes the accurate measurement of the water quantity of the barrier lake and the drawing of a reservoir capacity curve based on complete remote sensing.

摘要：【中文】本发明公开了一种针对高原地区U型河谷水下未知地形精确模拟方法，包括如下步骤：S1：根据光学遥感，对河道中心线进行定位；S2：通过空天地遥感信息技术手段，进行局部河道比较系数拟合和河流中心点高程估算；S3：以所述河道中心线为基准，等间隔采样河道两侧水上边坡的高程信息；S4：根据所述河道两侧水上边坡的高程信息和河流中心点高程，进行基于边坡拟合的分段水下地形自适应模拟。本发明采用横向边坡高程采样和纵向中心河道比降估算，通过分型约束和高斯边坡拟合的方法，精确模拟出高原“U”型河道被堰塞段的水下未知地形，实现了基于完全遥感技术手段对区域水下地形的快速监测与精准模拟。 【EN】The invention discloses an accurate simulation method for an underwater unknown terrain of a U-shaped valley in a plateau area, which comprises the following steps: s1: positioning the center line of the river channel according to optical remote sensing; s2: performing local river channel comparison coefficient fitting and river center point elevation estimation through an air-space-ground remote sensing information technical means; s3: taking the center line of the river channel as a reference, and sampling elevation information of the water slopes on two sides of the river channel at equal intervals; s4: and performing segmented underwater terrain self-adaptive simulation based on slope fitting according to the elevation information of the water slopes on the two sides of the river channel and the elevation of the river center point. According to the method, the horizontal slope elevation sampling and the longitudinal center river channel slope reduction estimation are adopted, and the underwater unknown terrain of the blocked section of the plateau U-shaped river channel is accurately simulated through the parting constraint and Gaussian slope fitting method, so that the rapid monitoring and accurate simulation of the regional underwater terrain based on the complete remote sensing technical means are realized.