color bar

HI,

Here is the NCL official example plot

http://www.ncl.ucar.edu/Applications/Images/overlay_5_lg.png

I have a question about the color bar. The negative values are in green,
blue colors (cold color) and the positive values are in yellow, red colors ( hot color).
They are divided by white color (-2.5 to 0).

Is the color bar made accidentally or controlled by some NCL parameters?

Thanks.

Yongzuo

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Received on Sat Feb 5 12:34:52 2011