<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta name=Title content=""><meta name=Keywords content=""><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
        {font-family:"Cambria Math";
        panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
        {font-family:Calibri;
        panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
        {margin:0cm;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:Calibri;
        mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
        {mso-style-priority:99;
        color:#0563C1;
        text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
        {mso-style-priority:99;
        color:#954F72;
        text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
        {mso-style-priority:34;
        margin-top:0cm;
        margin-right:0cm;
        margin-bottom:0cm;
        margin-left:36.0pt;
        margin-bottom:.0001pt;
        font-size:12.0pt;
        font-family:Calibri;
        mso-fareast-language:EN-US;}
span.EmailStyle17
        {mso-style-type:personal-compose;
        font-family:Calibri;
        color:windowtext;}
span.msoIns
        {mso-style-type:export-only;
        mso-style-name:"";
        text-decoration:underline;
        color:teal;}
.MsoChpDefault
        {mso-style-type:export-only;
        font-family:Calibri;
        mso-fareast-language:EN-US;}
@page WordSection1
        {size:595.0pt 842.0pt;
        margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
        {page:WordSection1;}
/* List Definitions */
@list l0
        {mso-list-id:173227566;
        mso-list-type:hybrid;
        mso-list-template-ids:-777867642 2144533154 134807577 134807579 134807567 134807577 134807579 134807567 134807577 134807579;}
@list l0:level1
        {mso-level-text:"%1\.\)";
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level2
        {mso-level-number-format:alpha-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level3
        {mso-level-number-format:roman-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:right;
        text-indent:-9.0pt;}
@list l0:level4
        {mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level5
        {mso-level-number-format:alpha-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level6
        {mso-level-number-format:roman-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:right;
        text-indent:-9.0pt;}
@list l0:level7
        {mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level8
        {mso-level-number-format:alpha-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level9
        {mso-level-number-format:roman-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:right;
        text-indent:-9.0pt;}
ol
        {margin-bottom:0cm;}
ul
        {margin-bottom:0cm;}
--></style></head><body bgcolor=white lang=EN-GB link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>For years I&#8217;ve been using CDO to convert ECMWF&#8217;s IFS grib files to netcdf and converting it from reduced Gaussian grid to regular lat lon.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>But CDO has not kept up the pace with updates and they do not respond to many questions.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Therefore, I&#8217;m attempting to move this part of my processing chain to NCL.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>I&#8217;m using NCL 6.5 (beta) to read the grib file (see attached log file). There 1 or 2 problems and then I have a question.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p>&nbsp;</o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt'><span style='mso-list:Ignore'>1.)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><![endif]><span style='font-size:11.0pt'>My NCL script is not finding the experimental variables in the grib file. These variables are given the generic names varXXX where XXX can be between 88 and 111, for example.<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt'><span style='mso-list:Ignore'>2.)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><![endif]><span style='font-size:11.0pt'>The script also doesn&#8217;t find the 3D records. I&#8217;m not sure how NCL finds these records in the grib file and then lists them as a 3D (time,lev,lat,lon), not counting the time. <o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt'><span style='mso-list:Ignore'>3.)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><![endif]><span style='font-size:11.0pt'>If 1 and 2 can be resolved, how can I then convert the reduced Gaussian grid to regular lat lon? Would ESMF work if I setup a regular lat lon grid?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Appreciate your thoughts on this.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>/M<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman";color:#0070C0;mso-fareast-language:EN-GB'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman";color:#0070C0;mso-fareast-language:EN-GB'>Marston S. Johnston, PhD<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman";color:#0070C0;mso-fareast-language:EN-GB'>Department of Earth Sciences<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman";color:#0070C0;mso-fareast-language:EN-GB'>University of Gothenburg, Sweden<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman";color:#0070C0;mso-fareast-language:EN-GB'>Email:&nbsp;<a href="mailto:marston.johnston@gu.se"><span style='color:#0070C0'>marston.johnston@gu.se</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman";color:#0070C0;mso-fareast-language:EN-GB'>SkypeID: marston.johnston&nbsp;<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman";color:#0070C0;mso-fareast-language:EN-GB'>Phone: +46-31-7864901&nbsp;<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman";color:#0070C0;mso-fareast-language:EN-GB'>Only the fruitful thing is true!<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman";color:#0070C0;mso-fareast-language:EN-GB'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p><p class=MsoNormal><o:p>&nbsp;</o:p></p></div></body></html>