>
> All,
>
> The usual disclaimer...I am new to NCL (first day). I have a 2-D
> array of temperature for a location. The "vertical" axis is on pressure
> levels and the "horizontal"-axis is time. I would like to plot (contour)
> this with the vertical plotted on the reverse log of pressure.
>
> Using some examples I can plot the data and the axis is labeled correctly
> but it looks like the values on the axis and the actual plotted data have no
> correlation...e.g. the value of the 500 mb temp at time 0 does not match up
> with the image that is generated. It looks like the data is being contoured
> as if it was equally spaced in the vertical not the log of p.
>
> John C. Ertl
This is just an FYI, since John and I have been corresponding
privately on this question. If you have data that has an irregular Y
axis, then NCL needs to know about it because otherwise it will
default to a linear Y axis (and ditto for the X axis).
In the case of an irregular Y axis, you can indicate this by setting
the "sfYArray" resource to the 1D array that represents the Y axis
values. With John's data, the Y axis is represented by pressure
values. So, for example, if "p" is the variable that holds the 1D
array of pressure values, he would set the resource as follows:
res@sfYArray = p
--Mary
> Fleet Numerical Meteorology & Oceanography Center
> 7 Grace Hopper Ave
> Monterey, CA 93943
> phone: (831) 656-5704
> fax: (831) 656-4363
>
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