<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi, Jim -- <div>I will not be re-distributing the CMIP5 data I have collected via OPeNDAP. I believe some of the ESGF data nodes are putting their data behind LAS, and I guess since all the data are behind a THREDDS server you could access individual files with a URL, but I don't know how the authentication works in either case. In any event, the volume, complexity, granularity, and wide distribution of the data make OPeNDAP access a bit awkward and slow, and I have not pursued it as means for looking at CMIP5 data. </div><div>--Jennifer</div><div><br></div><div><br></div><div><br></div><div><br><div><div>On Jan 6, 2013, at 10:17 PM, James T. Potemra wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
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Jennifer:<br>
<br>
I'm curious whether you will be distributing the processed model
output via an OPeNDAP server? Or maybe someone knows of one
already? Thanks,<br>
<br>
Jim<br>
<br>
<div class="moz-cite-prefix">On 1/4/13 2:00 PM, Jennifer Adams
wrote:<br>
</div>
<blockquote cite="mid:974E60B2-F244-4505-A463-7BD96AEACE4B@cola.iges.org" type="cite">Dear All,
<div>I will be giving a presentation at the AMS meeting next week
on strategies I've used to download CMIP5 data. It's kind of a
technical talk, maybe only of interest to a few members of this
forum, but there is one slide that is relevant for GrADS (the
text is below). I've done a bit of scripting to automatically
generate descriptor files (for 'xdfopen' and 'open' when PDEF is
necessary). The script parses the list of data files to
determine the range of time steps for a particular variable and
then generates the relevant CHSUB entries. It also does some
other data-management checking to make sure the files cover a
continuous, non-overlapping time span. Other functionality is
listed below under the first bullet. I also have some code that
will create PDEF files for non-rectilinear grids. ESMF's
RegridWeightGen tool and a custom C program I wrote to translate
the weights into a PDEF file make this a relatively easy job,
allowing GrADS to handle a lot of data that were previously
inaccessible. Although these scripts were all written for CMIP5
data, they can be adapted for other data sets. At some point,
I'd like to bring some of this code under the hood of GrADS, but
that is still a bit far off… In any case, please let me know if
you are interested in any of my scripts -- it seems a shame to
spend so much time developing code for only one person to use.</div>
<div>--Jennifer</div>
<div><br>
</div>
<div>
<div><font class="Apple-style-span" face="Courier"><br>
</font></div>
<div>
<!--StartFragment-->
<div style="margin-top:6.48pt;margin-bottom:0pt;margin-left:0in;text-indent:
0in;text-align:left;direction:ltr;unicode-bidi:embed;mso-line-break-override:
none;word-break:normal;punctuation-wrap:hanging"><font class="Apple-style-span" color="#010101" face="'Lucida
Sans'">•Create GrADS
descriptor files</font></div>
<div style="margin-top:6.48pt;margin-bottom:0pt;margin-left:0in;text-indent:
0in;text-align:left;direction:ltr;unicode-bidi:embed;mso-line-break-override:
none;word-break:normal;punctuation-wrap:hanging"><span class="Apple-style-span" style="color: rgb(1, 1, 1);
font-family: 'Lucida Sans'; "><span class="Apple-tab-span" style="white-space:pre"> </span>Aggregate files over
time dimension</span></div>
<div class="O1" style="margin-top:5.76pt;margin-bottom:0pt;margin-left:.5in;
text-indent:0in;text-align:left;direction:ltr;unicode-bidi:embed;mso-line-break-override:
none;word-break:normal;punctuation-wrap:hanging"><font class="Apple-style-span" color="#010101" face="'Lucida
Sans'">Make use of ensemble
dimension when appropriate</font></div>
<div class="O1" style="margin-top:5.76pt;margin-bottom:0pt;margin-left:.5in;
text-indent:0in;text-align:left;direction:ltr;unicode-bidi:embed;mso-line-break-override:
none;word-break:normal;punctuation-wrap:hanging"><font class="Apple-style-span" color="#010101" face="'Lucida
Sans'">Identify missing or
overlapping time periods </font></div>
<div class="O1" style="margin-top:5.76pt;margin-bottom:0pt;margin-left:.5in;
text-indent:0in;text-align:left;direction:ltr;unicode-bidi:embed;mso-line-break-override:
none;word-break:normal;punctuation-wrap:hanging"><font class="Apple-style-span" color="#010101" face="'Lucida
Sans'">Assign non-standard
dimensions <br>
<span style="mso-spacerun: yes"> </span><span style="mso-spacerun: yes"> </span>(e.g. basin averages
or fixed fields)</font></div>
<div class="O1" style="margin-top:5.76pt;margin-bottom:0pt;margin-left:.5in;
text-indent:0in;text-align:left;direction:ltr;unicode-bidi:embed;mso-line-break-override:
none;word-break:normal;punctuation-wrap:hanging"><font class="Apple-style-span" color="#010101" face="'Lucida
Sans'">Handle 365_day
calendars</font></div>
<div style="margin-top:6.48pt;margin-bottom:0pt;margin-left:0in;text-indent:
0in;text-align:left;direction:ltr;unicode-bidi:embed;mso-line-break-override:
none;word-break:normal;punctuation-wrap:hanging"><font class="Apple-style-span" color="#010101" face="'Lucida
Sans'">• Create PDEF files
for non-rectilinear grids </font></div>
<div class="O1" style="margin-top:5.76pt;margin-bottom:0pt;margin-left:.5in;
text-indent:0in;text-align:left;direction:ltr;unicode-bidi:embed;mso-line-break-override:
none;word-break:normal;punctuation-wrap:hanging"><font class="Apple-style-span" color="#010101" face="'Lucida
Sans'">For ocean and sea ice realms</font></div>
<div class="O1" style="margin-top:5.76pt;margin-bottom:0pt;margin-left:.5in;
text-indent:0in;text-align:left;direction:ltr;unicode-bidi:embed;mso-line-break-override:
none;word-break:normal;punctuation-wrap:hanging"><font class="Apple-style-span" color="#010101" face="'Lucida
Sans'">ESMF’s RegridWeightGen utility
generates the<br>
<span style="mso-spacerun: yes"> </span>interpolation
weights</font></div>
<div class="O1" style="margin-top:5.76pt;margin-bottom:0pt;margin-left:.5in;
text-indent:0in;text-align:left;direction:ltr;unicode-bidi:embed;mso-line-break-override:
none;word-break:normal;punctuation-wrap:hanging"><font class="Apple-style-span" color="#010101" face="'Lucida
Sans'">Vector fields must be rotated from
grid-relative <br>
<span style="mso-spacerun: yes"> </span>to
Earth-relative
coordinates before interpolation</font></div>
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<div><font class="Apple-style-span" color="#010101" face="'Lucida Sans'"><br>
</font></div>
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<span class="Apple-style-span" style="font-size: 12px; "><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; ">
<div>--</div>
<div>Jennifer M. Adams</div>
<div>IGES/COLA</div>
<div>4041 Powder Mill Road, Suite 302</div>
<div>Calverton, MD 20705</div>
<div><a moz-do-not-send="true" href="mailto:jma@cola.iges.org">jma@cola.iges.org</a></div>
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_______________________________________________<br>gradsusr mailing list<br><a href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br>http://gradsusr.org/mailman/listinfo/gradsusr<br></blockquote></div><br><div apple-content-edited="true">
<span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div>--</div><div>Jennifer M. Adams</div><div>IGES/COLA</div><div>4041 Powder Mill Road, Suite 302</div><div>Calverton, MD 20705</div><div><a href="mailto:jma@cola.iges.org">jma@cola.iges.org</a></div><div><br class="khtml-block-placeholder"></div><br class="Apple-interchange-newline"></span></span></span>
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