Surface-sediment grain-size data from the mouth of the Columbia River, Oregon and Washington, 2013

This portion of the USGS data release presents sediment grain-size data from samples collected from the mouth of the Columbia River, Oregon and Washington, in 2013....本美国地质调查局（USGS）数据集发布内容的此部分，收录了2013年采自美国俄勒冈州与华盛顿州境内哥伦比亚河河口的沉积物样本的粒度数据。