检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:岳保静[1,2] 颜中辉[1,2] 高茂生[1,2] 邵家旺 侯国华[1,2] 白伟明[1] 叶永玉[1]
机构地区:[1]国土资源部油气资源和环境地质重点实验室,中国地质调查局青岛海洋地质研究所,青岛266071 [2]青岛海洋科学与技术国家实验室海洋地质过程与环境功能实验室,青岛266061
出 处:《海洋地质与第四纪地质》2016年第6期219-227,共9页Marine Geology & Quaternary Geology
基 金:海洋地质保障工程项目(GZH201200505,DD20160144);国家自然科学基金项目(41106060)
摘 要:对潍坊人工沙滩二期工程竣工后海滩实测地形剖面进行研究,应用经验正交函数(EOF)提取海滩2013年5月至2015年11月6次剖面监测数据中的前3个模态的空间特征函数和时间特征函数,分析竣工养护后海滩剖面的时空演变特征及海滩的平面变化特征。第一特征函数表示竣工后海滩的总体冲淤变化,受到东西两侧丁坝加长和中间T型坝修建的影响,剖面的侵蚀程度较一期工程明显减小;第二特征函数表示受地形和水动力作用影响,前滨带出现滩肩剖面和沙坝剖面的相互转化;第三特征函数反映风暴潮、人为因素等偶然因素的影响;从平面特征来看,人工沙滩中部、东部较西部侵蚀严重。可见,二期工程建设起到了优化的目的,大大改善了人工沙滩的侵蚀,但仍需要持续有规律的对海滩进行监测,进一步深化对人工养护沙滩建设和维护的认识。We made a study of the measured beach profiles in the Weifang artificial beach after the second stage of the nourishment project.Empirical Orthogonal Function(EOF)is applied to analyze the spatial and temporal features of the beach profiles and the evolutionary features of the beach from May 2013 to November 2015.The results indicate that the beach profile evolution includes 3phases.The first phase represents the overall change of the beach,and the erosion is significantly decreased compared with the firststage project after the establishment of the groins on both east and west sides and a new T-type groin in the middle of the beach;The second phase represents the inter-conversion between the beach ridge and the beach bar in the foreshore area affected by topography and hydrodynamic interaction;the third phase represents the accidental disturbance of storm surges and human factor.The plane view of the beach shows that erosion is more serious in the central and eastern parts than in the west part of the artificial beach.The purpose of beach optimization is achieved after the second-stage of the project.It is necessary to monitor the beach regularly to understand more for future construction and maintenance of the artificial beach.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:18.188.185.167