Complex coastal oceanographic fields can be described by universal multifractals
Complex coastal oceanographic fields can be described by universal multifractals
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复杂的沿海海洋场可以用通用多重分形来描述
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
T. Smyth
中科院分区：
文献类型：
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作者：
J. Skákala;T. Smyth
利用尺度特性表征叶绿素和海表温度（SST）结构非均质性可以为估计关键物理和生物驱动因素的相对重要性提供有用的工具。本文研究了在英国周围7个不同的沿海和大陆架海区域，通过卫星测量确定的叶绿素和海温的季节、年度和瞬时空间分布。结果表明，多重分形可以很好地近似于数据的标度特性，事实上，多重分形标度函数可以很好地近似于通用多重分形理论。其结果是，所有关于数据结构的统计信息都可以简化为用两个参数来描述。进一步表明，研究区域的水深尺度也具有多重分形特征。海温和叶绿素多重分形结构被解释为测深和湍流的影响。
Characterization of chlorophyll and sea surface temperature (SST) structural heterogeneity using their scaling properties can provide a useful tool to estimate the relative importance of key physical and biological drivers. Seasonal, annual, and also instantaneous spatial distributions of chlorophyll and SST, determined from satellite measurements, in seven different coastal and shelf-sea regions around the UK have been studied. It is shown that multifractals provide a very good approximation to the scaling properties of the data: in fact, the multifractal scaling function is well approximated by universal multifractal theory. The consequence is that all of the statistical information about data structure can be reduced to being described by two parameters. It is further shown that also bathymetry scales in the studied regions as multifractal. The SST and chlorophyll multifractal structures are then explained as an effect of bathymetry and turbulence.
DOI：
10.1016/j.jmarsys.2008.03.011
发表时间：
2009-02
期刊：
Journal of marine systems : journal of the European Association of Marine Sciences and Techniques
影响因子：
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作者：
C. Stow;J. Jolliff;D. McGillicuddy;S. Doney;J. Icarus Allen;Marjorie A.M. Friedrichs;Kenneth A. Rose;P. Wallhead
通讯作者：
C. Stow;J. Jolliff;D. McGillicuddy;S. Doney;J. Icarus Allen;Marjorie A.M. Friedrichs;Kenneth A. Rose;P. Wallhead