The new fisheries multibeam echosounder ME70: description and expected contribution to fisheries research
The new fisheries multibeam echosounder ME70: description and expected contribution to fisheries research
复制标题
新型渔业多波束回声测深仪 ME70：描述和对渔业研究的预期贡献
DOI：
--
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
L. Berger
中科院分区：
文献类型：
--
作者：
V. Trenkel;V. Mazauric;L. Berger
最近，Simrad与Ifremer合作开发了一种用于渔业研究的校准多波束垂直回声测深仪（ME 70）。我们描述了它的能力和技术限制。ME 70具有多达45个波束，频率范围在70-120 kHz之间，跨度最大为150°。所有横梁在船舶横摇和纵摇时都是稳定的。它降低了旁瓣电平，高达-70 dB（双向），而不是传统系统的-25 dB（单向）。我们概述了ME 70可能提供新类型信息的研究领域，从而导致新的见解。我们说明了潜在的贡献与收集的数据集在英吉利海峡和比斯开湾的大陆架断裂。最后，未来的研究和发展，使用新的系统进行了概述。
Recently, Simrad in collaboration with Ifremer developed a calibrated, multibeam, vertical echosounder (ME70) for fisheries research. We describe its capabilities and technical limitations. The ME70 has up to 45 beams with distinct frequencies in the range 70–120 kHz, spanning at most 150°. All beams are stabilized in vessel roll and pitch. It has reduced side-lobe levels, up to –70 dB (twoway) instead of the –25 dB (one-way) of conventional systems. We outline research areas for which the ME70 might provide new types of information and hence lead to novel insights. We illustrate the potential contributions with datasets collected in the English Channel and on the continental-shelf break of the Bay of Biscay. Finally, future research and developments using the new system are outlined.