| 海洋环境要素客观分析图绘制的若干问题 |
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| 引用本文： | 张志欣,于非,郭景松,葛人峰,郭炳火,许一.海洋环境要素客观分析图绘制的若干问题[J].海洋科学进展,2006,24(3):371-378. |
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| 作者姓名： | 张志欣 于非 郭景松 葛人峰 郭炳火 许一 |
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| 作者单位： | 国家海洋局,第一海洋研究所,山东,青岛,266061;海洋环境科学与数值模拟国家海洋局重点实验室,山东,青岛,266061 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 根据海洋环境资料空间分布的特点,使用Surfer中三角形线性插值法与样条平滑的组合能够比较准确地绘制单航次数据资料的客观分析图。对于累年多源资料,为了较好地解决海洋环境场的各向异性和资料空间分布不均匀性的问题,在Carter(1987)发展的客观分析统计模型的基础上,采用不同的搜索域进行客观分析,取得了良好效果。另外,Kriging方法用于海洋绘图时,在跃层和锋面处容易出现“鼓肚”现象,不能很好地反映浅海区潮混合导致的均匀层,应用时需加以注意。
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| 关 键 词： | 海洋环境要素 客观分析 绘图技术 |
| 文章编号： | 1671-6647(2006)03-0371-08 |
| 收稿时间： | 2005-09-28 |
| 修稿时间： | 2005年9月28日 |
Some Problems With the Plotting of Objective Analysis Map of Marine Environmental Elements |
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| ZHANG Zhi-xin,YU Fei,GUO Jing-song,GE Ren-feng,GUO Bing-huo,XU Yi.Some Problems With the Plotting of Objective Analysis Map of Marine Environmental Elements[J].Advances in Marine Science,2006,24(3):371-378. |
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| Authors: | ZHANG Zhi-xin YU Fei GUO Jing-song GE Ren-feng GUO Bing-huo XU Yi |
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| Institution: | 1. First Institute of Oceanography, SOA, Qingdao 266061, China; 2. Key Lab of Marine Science and Numerical Modeling, SOA, Qingdao 266061, China |
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| Abstract: | Based on the spatial distribution features of marine environmental data,the combined triangle linear interpolation and spline smoothing method can be used to better plot the objective anlysis map of single cruise survey data,and in order to solve the problems with the anisotropy of marine environmental filed and the nonhomogeneity of survey data distributions,different search areas are used to make an objective analysis of multi-year and multi-souce survey data to get better results.In addtion,in applying the Kriging method to the plotting of marine element distribution map,the swelling phenomenon is easy to appear at the thermocline and front on the map,and the homogeneous layer caused by the tidal mixing in the shallow water area cannot be well reflected,which should be taken into consideration in applying the Kriging method.. |
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| Keywords: | marine environmental element objective analysis mapping technique |
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