[NARCCAP-discuss] tas versus tasmax

[Seth McGinnis]

Hi Tim,

Which runs (model + driver) are you seeing this happen in?

In theory, tasmax & tasmin should bracket tas.  It is possible that you've
found an error in the data post-processing; there's been at least one case
where we had to reprocess some files because of such a problem that eluded our
QC process.  However, note the definition of the "day" for Table 1, as
mentioned in Daryl's message.

I wrote an NCL script you may find useful for diagnosing the problem:
http://www.narccap.ucar.edu/contrib/tools/ncl/plot-tenvelope.ncl

Cheers,

--Seth


On Wed, 13 Feb 2013 15:42:26 -0600
 Tim Keitt <tkeitt at utexas.edu> wrote:
>I think I've misunderstood the relationship between the tas (surface
>temperature field) and tasmax (daily maximum surface temperature), or our
>code to extract these values is wrong (we are checking).
>
>We find that the maximum tas value in a given day is greater than the
>tasmax value about 50% of the time. I had assumed this was impossible, but
>perhaps I misinterpreted the docs.
>
>THK
>
>-- 
>http://www.keittlab.org/
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