Topographic Survey Data of Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River, Colorado, 2015

In 2012, the U.S. Geological Survey (USGS) in cooperation with Colorado Springs Utilities selected 10 reaches or study areas along Fountain Creek between Colorado Springs and the confluence of Fountain Creek at the Arkansas River for annual bed and bank characterization and topographic surveys. The 10 selected study areas are approximately 5 to 20 bank-full channel widths in length. The topographic surveys collected point data of location and elevation in the active channel and along both left and right banks and flood plains. Starting in 2012, USGS personnel have collected topographic survey data annually during the winter, spring, or summer using real-time kinematic Global Navigation Satellite Systems. These point data are interpolated to a grid which is used to generate annual digital elevation maps of each study area. These annual maps are used to develop elevation change maps at each study area for each year. The topographic survey data provide an annual assessment of the geomorphic change at each study area.2012年，美国地质调查局（U.S. Geological Survey, USGS）联合科罗拉多斯普林斯公用事业公司，在科罗拉多斯普林斯至方登溪与阿肯色河汇流处沿线的方登溪流域，选定10处河道河段（研究区域），用于开展年度河床与岸滩特征表征及地形测量工作。所选的10处研究区域长度约为5至20倍的满岸河道宽度。本次地形测量采集了主河道内、左右岸及漫滩区域的位置与高程点数据。自2012年起，USGS工作人员每年冬季、春季或夏季均采用实时动态全球导航卫星系统（Real-time Kinematic Global Navigation Satellite Systems）采集地形测量数据。工作人员将这些点数据插值生成格网，进而用于生成各研究区域的年度数字高程图。利用这些年度高程图，可逐年生成各研究区域的高程变化图。本次地形测量数据可用于对各研究区域的地貌变化开展年度评估。