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<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hello
Charles,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>For
some variables, e.g. meridional wind, the monthly mean values will generally be
much smaller than the daily values, and so won’t give a good indication of what
values to expect.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I can
think of two options – (1) do a scan of the AR4 archive at all frequencies, (2)
issue a guidance note saying this particular warning should be ignored if there
is reason to believe that the absolute values of the monthly data are not a
good guide. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Cheers,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Martin<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></font></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><font size=2 color=black face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;
font-weight:bold'>From:</span></font></b><font size=2 color=black face=Tahoma><span
lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'> go-essp-tech-bounces@ucar.edu
[mailto:go-essp-tech-bounces@ucar.edu] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Charles Doutriaux<br>
<b><span style='font-weight:bold'>Sent:</span></b> 09 November 2010 16:07<br>
<b><span style='font-weight:bold'>To:</span></b> Karl Taylor<br>
<b><span style='font-weight:bold'>Cc:</span></b> Denis.Nadeau@nasa.gov;
go-essp-tech@ucar.edu<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Go-essp-tech]
ok_min_mean_abs and ok_max_mean_abs<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'>As Karl mentioned, I got the max/min from looping over
20c3m models "monthly" in AR4.<br>
<br>
If anybody as better values please forward them to us we'll gladly put them
into the tables.<br>
<br>
If anybody's interested I can search the code I used to search through the whole
AR4 archive.<br>
<br>
C.<br>
<br>
On 11/8/10 2:07 PM, Karl Taylor wrote: <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'>Hi Denis,<br>
<br>
I'm copying Charles D. who I hope will check the following for
correctness. As I recall:<br>
<br>
The mean_abs value is the temporal and spatial mean of the absolute values of a
field (based on latxlon grid cell values, but not area weighting these).
The mean_abs value specified in the CMOR tables is based on monthly means
produced by CMIP3 models. It basically gives you the typical magnitude of
the values of the field. If a model has a number much smaller or much
larger than the CMOR table value, then it may be unrealistic (or if off by an
order of magnitude or more, it probably means the units are wrong.)<br>
<br>
Charles can tell you how he got the "max" and the "min"
that appear in the table.<br>
<br>
regards,<br>
Karl<br>
<br>
On 11/8/10 11:43 AM, Denis Nadeau wrote: <o:p></o:p></span></font></p>
<pre><font size=2 color=black face="Courier New"><span style='font-size:10.0pt'>Hi,<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt'>Do you know how the mean_abs found in CMOR tables were calculated for <o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt'>some variables? Is there some documentation about this?<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt'>I get warnings from cmor2 API and would like to investigate further what <o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt'>they mean.<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt'>Thanks,<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt'>Denis<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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