Unlike the sandbars of the eastern us coast , low-lying pacific islands are made of coral debris .
不同于美国东海岸的沙洲，太平洋低地势岛屿是由珊瑚残骸构成的。
Understanding these sandbars is critical to study of beach erosion and climate-related sea level rise , but the surf zone is a notoriously hostile research environment .
Sandbars and islands between the " tentacles " appear rust colored due to deposits of sediments that had washed into the streams and rivers during heavy rains .
类似“触角”部分之间的沙洲和岛屿显示出铁锈颜色，是由于下大雨期间沉积层被冲进溪水和河流中造成的。
Using argus data , scientists can watch , almost in real time , as sandbars appear , disappear , curve , drift , breach and otherwise act up under the camouflage of breaking waves .
通过安格斯的数据资料，科学家门就能几乎是实时地观察沙洲在海浪下显现，消磨，分解和其他的动态。
The era of the modern port of new orleans began in 1879 with the construction of jetties in south pass , one of three passes that flow from the river into the gulf . Sandbars had formed at intervals in these passes and had hindered ships entering the river since the city 's founding .
