Boat-based water-surface cross sectional elevation surveys along the upper Willamette River, Oregon, in Spring, 2015

Water-surface elevation measurements were collected in Spring, 2015 along the upper Willamette River, Oregon, between Harrisburg and Corvallis. These surveys were collected over a small range of discharges, from 6,900 cubic feet per second to 8,300 cubic feet per second, using a real-time kinematic global positioning system (RTK-GPS) on a motorboat at various cross sections along the river. These datasets were collected for equipment calibration and validation for the National Aeronautics and Space Administration’s (NASA) Surface Water and Ocean Topography (SWOT) satellite mission. This is one of multiple survey datasets that will be released for this effort.

2015年春季，于美国俄勒冈州威拉米特河（Willamette River）上游哈里斯堡（Harrisburg）与科瓦利斯（Corvallis）之间的河段，采集了水面高程测量数据。本次测量沿河道多个断面开展，采用搭载于摩托艇的实时动态全球定位系统（real-time kinematic global positioning system，RTK-GPS）完成数据采集，测量时的流量范围较窄，介于6900立方英尺每秒至8300立方英尺每秒之间。本数据集的采集工作旨在为美国国家航空航天局（National Aeronautics and Space Administration，NASA）的表面水与海洋地形（Surface Water and Ocean Topography，SWOT）卫星任务提供设备校准与验证支持。本次数据集是该任务计划发布的多组测量数据集之一。