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<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hello Dennis,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">sorry that my question wasn’t clear enough.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Let my try again.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The attached map is a displayed result of RCM-dataset. The original grid covers Europe. The displayed area covers Germany and a bit more.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">What I am looking for is a routine that calculates the mean value of the displayed area.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks in advance<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Frank<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Von:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> ncl-talk-bounces@ucar.edu [mailto:ncl-talk-bounces@ucar.edu]
<b>Im Auftrag von </b>Dennis </span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Shea<br>
<b>Gesendet:</b> Montag, 1. September 2014 15:11<br>
<b>An:</b> Kreienkamp Frank<br>
<b>Cc:</b> ncl-talk<br>
<b>Betreff:</b> Re: [ncl-talk] mean value of all displayed grid points / pixel in a map<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">The question is vague<br>
<br>
"I want to calculate the mean value of all displayed grid points in a map.<br>
<br>
This means:<br>
- i have gridded data for the entire world (gcm-results)<br>
- i plot a map (stereographic projection) for Europe<br>
<br>
NCL draws a rectangle map based on the given resource parameters. I am<br>
looking for a function which counts all displayed values (pixel?) and<br>
calculates an average value."<o:p></o:p></p>
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<p class="MsoNormal">NCL handles "gridded data for the entire world (gcm-results)" all the time.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">[1] dim_avg_n_Wrap will calculate the means at each grid point over all times.<o:p></o:p></p>
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<p class="MsoNormal">[2] wgt_areaave_Wrap calculates an area average<o:p></o:p></p>
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<p class="MsoNormal">[3] NCL can display much more than a "rectangular map"<o:p></o:p></p>
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<p class="MsoNormal">[4] wks = gsn_open_wks("png" ,"frank")<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"> will send graphics to a png file<o:p></o:p></p>
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<p class="MsoNormal">What do you mean by:<br>
<br>
"Is there a chance that i can get the matrix-values which are send to the (png-)workstation?"<o:p></o:p></p>
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=======<br>
<a href="https://www.ncl.ucar.edu/Document/Functions/Contributed/dim_avg_n_Wrap.shtml" target="_blank">https://www.ncl.ucar.edu/Document/Functions/Contributed/dim_avg_n_Wrap.shtml</a><br>
<a href="https://www.ncl.ucar.edu/Applications/climo.shtml">https://www.ncl.ucar.edu/Applications/climo.shtml</a><br>
<a href="https://www.ncl.ucar.edu/Document/Functions/Contributed/wgt_areaave_Wrap.shtml" target="_blank">https://www.ncl.ucar.edu/Document/Functions/Contributed/wgt_areaave_Wrap.shtml</a><br>
<a href="https://www.ncl.ucar.edu/Applications/maponly.shtml" target="_blank">https://www.ncl.ucar.edu/Applications/maponly.shtml</a><br>
<a href="https://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_csm_contour_map.shtml" target="_blank">https://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_csm_contour_map.shtml</a><o:p></o:p></p>
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<p class="MsoNormal">Good luck<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal">On Mon, Sep 1, 2014 at 2:31 AM, Kreienkamp Frank <<a href="mailto:Frank.Kreienkamp@dwd.de" target="_blank">Frank.Kreienkamp@dwd.de</a>> wrote:<o:p></o:p></p>
<p class="MsoNormal">Hello ,<br>
<br>
since having no one answering the original question.<br>
<br>
Is there a chance that i can get the matrix-values which are send to the (png-)workstation?<br>
<br>
Thanks in advance<br>
Frank Kreienkamp<br>
<br>
-----Ursprüngliche Nachricht-----<br>
Von: <a href="mailto:ncl-talk-bounces@ucar.edu">ncl-talk-bounces@ucar.edu</a> [mailto:<a href="mailto:ncl-talk-bounces@ucar.edu">ncl-talk-bounces@ucar.edu</a>] Im Auftrag von Frank Kreienkamp<br>
Gesendet: Mittwoch, 27. August 2014 06:37<br>
An: ncl-talk<br>
Betreff: [ncl-talk] mean value of all displayed grid points / pixel in a map<o:p></o:p></p>
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<p class="MsoNormal"><br>
Hello,<br>
<br>
i have searched the function list but i have not found a solution for the following problem.<br>
<br>
I want to calculate the mean value of all displayed grid points in a map.<br>
<br>
This means:<br>
- i have gridded data for the entire world (gcm-results)<br>
- i plot a map (stereographic projection) for Europe<br>
<br>
NCL draws a rectangle map based on the given resource parameters. I am looking for a function which counts all displayed values (pixel?) and calculates an average value.<br>
<br>
Thanks in advance<br>
Frank<br>
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