Velocity and Bathymetry Surveys of the Columbia River near Northport, Washington, May 2018

Boat-mounted acoustic doppler current profilers (ADCPs) were used to collect velocity data on the Columbia River in a small area near Northport, WA. Velocity surveys were collected during two surveys at high-flow, high-stage conditions in May 2018. Bathymetric data were also collected during one of the surveys using a single-beam echo-sounder. The datasets here provide 1) raw ADCP and single-beam survey data, 2) processed summaries of the data, primarily in geospatial data formats, and 3) summary visualizations of transect-averaged velocity and depth characteristics of the surveyed reach.

本数据集采用船载声学多普勒流速剖面仪（acoustic doppler current profilers，ADCP），于哥伦比亚河华盛顿州诺斯波特附近的小片水域内采集流速数据。2018年5月，研究团队在高流量、高水位的水文条件下开展两次勘测，获取流速实测数据；其中一次勘测期间，还通过单波束测深仪（single-beam echo-sounder）采集了测深数据。本数据集包含三类内容：1）原始ADCP数据与单波束勘测数据；2）经处理的数据摘要，主要采用地理空间数据格式存储；3）勘测河段的断面平均流速与水深特征的汇总可视化成果。