Shape-invariant multibeam backscatter data of the eastern slope of the Porcupine Seabight (50 m grid size)

In this study multibeam angular backscatter data acquired in the eastern slope of the Porcupine Seabight are analysed. Processing of the angular backscatter data using the 'NRGCOR' software was made for 29 locations comprising different geological provinces like: carbonate mounds, buried mounds, seafloor channels, and inter-channel areas. A detailed methodology is developed to produce a map of angle-invariant (normalized) backscatter data by correcting the local angular backscatter values. The present paper involves detailed processing steps and related technical aspects of the normalization approach. The presented angle-invariant backscatter map possesses 12 dB dynamic range in terms of grey scale. A clear distinction is seen between the mound dominated northern area (Belgica province) and the Gollum channel seafloor at the southern end of the site. […]

在本研究中，对在刺猬海东部斜坡采集的多波束角度后向散射数据进行解析。采用'NRGCOR'软件对29个地点的角度后向散射数据进行处理，这些地点涵盖了不同的地质区，包括碳酸盐丘、埋藏丘、海底沟道以及沟道间区域。本研究开发了一套详尽的方法，以通过对局部角度后向散射值进行校正，生成角度不变（归一化）的后向散射数据图。本文详细阐述了归一化方法的相关处理步骤和技术细节。所呈现的角度不变后向散射图在灰度尺度上具有12分贝的动态范围。在地点北部的以丘状地貌为主的区域（比利时省）与南端地点的戈伦姆沟道海底之间，可以观察到清晰的区分……