海洋测绘2025，Vol.45Issue(1)：48-52,5.DOI:10.3969/j.issn.1671-3044.2025.01.011
闽南浅滩西北区沙波地形地貌及运动趋势研究
The study of sand wave geomorphology and movement trends in the northwestern region of the Minnan shoal
摘要
Abstract
In order to gain a preliminary understanding of the geomorphologic characterization and movement trends of multi-scale sand waves in Minnan shoal sea area,the sand wave area in the northwest side was selected to conduct research on the detailed topography of the terrain and overlying sand waves.According to the multi-scale classification system of sand waves in Minnan shoal sea area,the sand waves are divided into three categories:primary giant sand waves,secondary sand waves and sand ripples.The results indicate that the regional terrain is rugged because of the multi-scale sand wave topography within the area.The primary giant sand waves are distributed in the NW-SE direction,with an asymmetry of steep north slope and gentle south slope.The terrain of the valley area is flat,and there is an overall trend of moving towards the northeast due to the influence of ocean currents with a northeast rising current velocity greater than a southwest falling current at the bottom layer.The secondary sand waves develop on the southern slope of the primary giant sand waves,and the sand ridges run parallel to the primary,exhibiting positive symmetry.Due to the influence of reciprocating currents,there is a tendency to move towards the north and south ends of Minnan shoal respectively.The sand ripples are distributed on the north slope of the primary giant sand waves,ridges of which generally have an angle of 30° to 50° with the primary.The results of this study can provide important references for the engineering construction and basic research of marine science in the sea area.关键词
海底沙波/地形特征/沙波分类/运动趋势/闽南外海浅滩Key words
seabed sand wave/topographical features/sand wave classification/motion trend/Minnan shoal sea area分类
天文与地球科学引用本文复制引用
王雁冰,李丁硕,费严铖..闽南浅滩西北区沙波地形地貌及运动趋势研究[J].海洋测绘,2025,45(1):48-52,5.基金项目
基于深远海的海上风电选址和支撑技术研究项目(HNKJ20-H66). （HNKJ20-H66）
