Introducing new "Evans plot" page

From: Mary Haley <haley_at_nyahnyahspammersnyahnyah>
Date: Thu, 15 Nov 2007 09:59:28 -0700 (MST)

We are pleased to announce a new applications page for the
"Evans plot":

     http://www.ncl.ucar.edu/Applications/evans.shtml

The code for this plot and the examples were created by Jason Evans, a
senior research fellow at the Climate Change Research Center,
University of New South Wales, Sydney, Australia.

An Evans plot is a way to visualize spatially, two variables of
interest, one of which provides some measure of "importance". It
is also able to visualize, in a natural way, a cyclic variable
(such as time of day, time of year, etc). It does this by
assigning the hue of a color to one variable (which may be cyclic)
and the saturation of color to the other variable. The variable
associated with saturation indicates "importance" since low values
of this variable fade into grey regardless of the value of the
variable associated with the hue.

Thanks, Jason, for contributing these nice visualizations and
providing several examples and data for us to include!

--Mary
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Received on Thu Nov 15 2007 - 09:59:28 MST

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