issue_comments: 146656714

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https://github.com/pydata/xarray/pull/608#issuecomment-146656714 https://api.github.com/repos/pydata/xarray/issues/608 146656714 MDEyOklzc3VlQ29tbWVudDE0NjY1NjcxNA== 2443309 2015-10-08T19:06:36Z 2015-10-08T19:06:36Z MEMBER

Yes, that was my motivation. Basically, switching to pcolormesh requires us to do this - the alternative is to add yincrease=True to all the 2d invocations of plot and pcolormesh in the docs.

I wouldn't say I have a comprehensive sense of how everyone orders their tick labels. In the earth sciences, which is my area of study, I'd say 95% of plots use the standard increasing y notation. The most common use cases for a decreasing y coordinate would probably be depth below the surface (where depth is increasingly positive).

One nice thing about setting yincrease=True by default, is that all our 2d plots come out with the same orientation. This is different than what you would get with matplotlib so I understand the hesitation. 

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