摘要
基于中国科学院海洋研究所“科学”号综合考察船在冲绳海槽中部热液区采集的高分辨率海底地形数据,建立地形复杂度综合分析模型,利用窗口序列分析法以及均值变点分析法,分析了冲绳海槽中部热液区的地形复杂度。结果发现,研究区内平均地形复杂度指数为1.74,热液活动区地形复杂度指数在1.4~3.2之间,热液活动区地形相对复杂。这为计算全球海底热液区地形复杂度和寻找热液活动区位置提供了新的思路。
The study of terrain complexity is of great significance to systematically study the distribution characteristics of global submarine hydrothermal zones.In this paper,a comprehensive analysis model of terrain complexity is established based on the high-resolution seabed topographic data collected by the research ship"Science"of the Institute of Oceanology,Chinese Academy of Sciences in the hydrothermal zone of the central Okinawa Trough.Moreover,the topographic complexity of hydrothermal area in the middle Okinawa trough was analyzed by means of window sequence analysis and mean change point analysis.The results showed that the average topographic complexity index in the study area was 1.74,and the topographic complexity index in the hydrothermal active area was between 1.4 and 3.2,indicating that the terrain in the hydrothermal active area was relatively complex.We provide a new idea to calculate the topographic complexity of global submarine hydrothermal zone and find the location of hydrothermal active zone.
作者
李金洋
张建兴
栾振东
阳凡林
LI Jinyang;ZHANG Jianxing;LUAN Zhendong;YANG Fanlin(College of Geodesy and Geomatics,Shandong University of Science and Technology Qingdao 266509,Shandong,China;Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China;Center for Ocean Mega-Sciences,Chinese Academy of Sciences,Qingdao 266071,China;College of oceanography,University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《海洋测绘》
CSCD
北大核心
2023年第6期38-41,共4页
Hydrographic Surveying and Charting
基金
国家自然科学基金(91858201
41949582)。
关键词
多波束测深数据
数字高程模型
地形复杂度
海底热液区
冲绳海槽中部
multi-beam echo sounding data
digital elevation model
terrain complexity
hydrothermal fields
mid-Okinawa trough