基于海陆融合DEM的大尺度潮间带提取方法  

The Large Scale Intertidal Zone Extraction Method Based on DEM with Ocean and Land Fusion

作　　者：马丹 樊妙[1] 武双全[1] 马永 王晶[1] MA Dan;FAN Miao;WU Shuangquan;MA Yong;WANG Jing(National Marine Data and Information Service,Tianjin 300171,China)

机构地区：[1]国家海洋信息中心,天津300171

出　　处：《海洋信息》2020年第4期35-40,共6页Marine Information

基　　金：国家自然科学基金(41930535)。

摘　　要：潮间带是开展生态环境保护、工程建设以及减灾防灾的重要地带,潮间带范围不明确则不利于开展后续的科学研究与生产,因此,行之有效的潮间带范围提取方法在海洋数据处理中较为重要。本文利用同一时相的实测高精度海陆融合DEM数据、渤海海域平均大潮高潮位、平均大潮低潮位提取了渤海海域潮间带的范围,并与机载LIDAR数据进行了对比$实验结果表明,本文提出的方法能够以较低的经济代价,获得大尺度和较高准确度的潮间带范围,可为进一步的科学研究与工程建设提供建议.Intertidal zone is an important area for ecological environment protection,engineering construction,disaster mitigation and prevention.Periodically flooded and exposed,the definite scope of intertidal zone is crucial to the subsequent scientific research and production.Therefore,an effective method of intertidal zone range extraction is important in marine data processing.In this paper,the range of intertidal zone in Bohai Sea area is extracted by using the high-precision DEM data of seabed topography and land topography,and the mean high tide level and low tide level of spring tide in Bohai Sea area in the same period,and compared with the airborne LINDAR data.The results show that the method proposed in this paper can obtain large-scale and high accuracy intertidal zone range at lower economic cost,which can provide suggestions for further scientific research and engineering construction.

关 键 词：海陆融合DEM 潮间带 提取 

分 类 号：P229.1[天文地球—大地测量学与测量工程]