Bathymetric, water velocity, and water temperature data on the St. Croix River between St. Croix Falls, Wisconsin, and Stillwater, Minnesota, June 19-22, 2018

From June 19-22, 2018, bathymetric, water velocity, and water temperature data were collected on the St. Croix River between St. Croix Falls, Wisconsin, and Stillwater, Minnesota. These data were collected with a Teledyne RD Instruments RiverRay acoustic Doppler current profiler (ADCP) and georeferenced using a Trimble R10 Global Navigation Satellite System (GNSS) receiver connected to a real-time virtual reference station (VRS) network. The GNSS receiver was mounted directly above the ADCP and data were read directly into the ADCP data collection software. Bathymetry, water temperature, and detailed, three-dimensional water velocity data were collected at 26 cross sections over the 47.8-kilometer (km) survey reach with three cross sections consisting of two channels separated by an island. Data were also collected between survey cross sections along the approximate centerline of the channel(s). Not all branches of the multithreaded St. Croix River were surveyed due to access and safety concerns. The ADCP data were post-processed using the Velocity Mapping Toolbox (VMT) version 4.09 (Parsons and others, 2013). References Cited: Parsons, D.R., Jackson, P.R., Czuba, J.A., Engel, F.L., Rhoads, B.L., Oberg, K.A., Best, J.L., Mueller, D.S., Johnson, K.K., and Riley, J.D., 2013, Velocity Mapping Toolbox (VMT)-A processing and visualization suite for moving-vessel ADCP measurements: Earth Surface Processes and Landforms, v. 38, p. 1244-1260.

2018年6月19日至22日，研究团队在威斯康星州圣克罗伊瀑布与明尼苏达州斯蒂尔沃特之间的圣克罗伊河河段采集了水深、水流流速与水温数据。本次数据采用泰莱达因RD仪器公司的RiverRay声学多普勒流速剖面仪（acoustic Doppler current profiler）完成采集，并通过连接实时虚拟参考站（virtual reference station）网络的天宝R10全球导航卫星系统（Global Navigation Satellite System）接收机进行地理配准。该GNSS接收机直接安装于ADCP上方，采集数据可直接导入ADCP配套的数据采集软件。本次勘测河段总长47.8千米，共在26个断面采集水深、水温及精细化三维水流流速数据，其中3个断面包含被岛屿分隔的双河道。研究团队同时沿河道（群）近似中心线，在各勘测断面之间开展了数据采集工作。受通行条件与安全因素限制，多河道圣克罗伊河的部分支流未被纳入本次勘测范围。ADCP原始数据通过流速测绘工具箱（Velocity Mapping Toolbox，VMT）4.09版本（Parsons等，2013）进行后处理。参考文献：Parsons, D.R.、Jackson, P.R.、Czuba, J.A.、Engel, F.L.、Rhoads, B.L.、Oberg, K.A.、Best, J.L.、Mueller, D.S.、Johnson, K.K.及Riley, J.D.，2013年，《Velocity Mapping Toolbox（VMT）——移动载体ADCP测量用处理与可视化套件》，刊载于《地表过程与地形》，第38卷，第1244-1260页。