人机交互地貌解释技术在海底滑坡研究中的应用

The application for interactive geomorphologic interpretation technique in research on submarine landslides

前人研究证实,海底测深资料分辨率随空间的变化,使传统地貌人工解释技术的使用受到限制.本文通过吸收国外在相关领域的新成果,提出一种基于GIS技术的、能改善海底多波束资料解释效果的人机交互数值分析技术.主要包括三种方法:定量地貌图、脊识别、地貌自动分类.对白云海底滑坡采用地貌人机交互解释技术结果表明,该技术不仅能减少主观因素对解释产生的偏差,更重要的是能充分挖掘人工解释时不容易发现的隐含信息,提高了解释的准确性和科学性.

Previous studies confirmed that spatial variability in bathymetric data resolution limited the application of traditional artificial geomorphological interpretation techniques. Absorbing foreign new achievements in related fields, we put forward a novel GIS-based （Geographical Information System） interactive numerical analysis technique to improve interpretation results, including three main methods： Geomorphometric mapping, Ridge Recognition, Automatic Geomorphologic Classification. Interpretation of Baiyun submarine slide indicates that not only can interactive interpretation technique reduce subjective mistakes, but, more important, can extract implicit information that could been difficult to pick up while interpreted by hand, and can enhance accuracy and scientificity of interpretation.