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[转载]模拟与观测相近程度评价----(泰勒图Taylor Diagram)

已有 6995 次阅读 2015-3-26 10:49 |个人分类:climate|系统分类:科研笔记

泰勒图用于评价气候模式模拟的变量与观测变量的差异程度

Taylor diagram解释

(1)from:

National Center for Atmospheric Research Staff (Eds). Last modified 23 Jul 2013.

 "The Climate Data Guide: Taylor Diagrams." Retrieved from https://climatedataguide.ucar.edu/climate-data-tools-and-analysis/taylor-diagrams.

The followng is by Dennis Shea (NCAR):

Taylor diagrams provide "a concise statistical summary of how well patterns match each other in terms of their correlation, their root-mean-square difference and the ratio of their variances."  Additional information such as percent bias can be added to the conventional Taylor diagram (see below).  

The Taylor diagram provides a graphical framework that allows a suite of variables from a variety of (say) one or more models or reanalyses to be compared to reference data. The reference data can be observationally based (eg, reanalysis) or to another model or a control run. All variables must be on the same grid so regridding may be necessary.

The official reference is Taylor, K. E. (2001), Summarizing multiple aspects of model performance in a single diagram, J. Geophys. Res., 106(D7), 7183–7192, http://dx.doi.org/10.1029/2000JD900719.

Karl Taylor provides an excellent simple description of the diagram and how to interpret the plotted points at http://www-pcmdi.llnl.gov/about/staff/Taylor/CV/Taylor_diagram_primer.htm. The primer contains a link to a large suite of Taylor diagram examples.

Key Figures:


(2)IPCC 解释  TAR WGI 8.5.1.2.1 ; 另外, Box 8.1 Taylor diagrams

Taylor diagram绘图实现

(1)plotrix package in R

taylor.diagram





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