Three dimensional measurement and visualization of seagrass and seaweed above the seafloor with a multi-beam echo sounder
Three dimensional measurement and visualization of seagrass and seaweed above the seafloor with a multi-beam echo sounder
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使用多波束回声测深仪对海底上方的海草和海藻进行三维测量和可视化
DOI：
10.3154/jvs.25.supplement1_407
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Z. Yoshida
中科院分区：
文献类型：
--
作者：
A. Asada;T. Horii;Ryuichi Mitomi;Jun Han;Z. Yoshida
到目前为止，在测深测量中已经消除了杂散多波束深度。然而，这些在寻找鱼类、海草、海藻、底栖动物和热羽时偶尔会变得很有价值。为此，我们利用多频换能器和多波束测深仪对海草的声学特性进行了研究。因此，高频多波束测深仪对观察海草和海藻的生长非常有用。通过计算底层回波的标准差，将回波有效地划分为底层回波和水柱回波。随后，成功开展了海底以上海草和海藻的三维测量和可视化。
Spurious multibeam depths have been eliminated in bathymetry measurements so far. However, those would occasionally become valuable in finding fishes, seagrass, seaweed, benthos, and thermal plume. So we had studied acoustical characteristics of seagrass by using multi-frequency transducers and a mutibeam echo sounder. As a result, the high frequency multi-beam echo sounder was very useful for observation of the growth of sea weed and seagrass. By means of calculating standard deviations of bottom echoes, we could divide echoes efficiently into bottom echoes and water column echoes. It followed that three dimensional measurement and visualization of seagrass and seaweed above the seabottom was carried out successfully.