color bars for color blind

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Colorbars need to take into account people with color deficiencies

For a summary of the problem, read: Light, A and P.J. Bartlein (2004) The end of the rainbow? Color schemes for improved data graphics. EOS Transactions of the American Geophysical Union 85(40):385

The paper is available on the authors website and also attached (PDF) to this ticket.

Sources of colorbars for color deficiency are available:

• http://geography.uoregon.edu/datagraphics/color_scales.htm
• http://www.personal.psu.edu/faculty/c/a/cab38/ColorBrewerBeta.html
• http://www.tsi.enst.fr/~brettel/
• http://www.vischeck.com/
• http://www.internettg.org/newsletter/mar99/accessibility_color_challenged.html

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EOS article

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colorbars from http://geography.uoregon.edu/datagraphics/color_scales.htm

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Attachment http://dev.edgcm.columbia.edu/attachment/ticket/8/cbars.zip?format=raw are the Bartlein et al., colorbars in pa1 format. EVA can read them, and thanks to #488 EVA now supports user/custom colorbars.

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IDL script used for conversion