<div dir="ltr"><div class="gmail_default" style="font-size:small">Jiande,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">You may also want to look at some ESMF regridding templates we have:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/Applications/Templates/#ESMFRegriddingTemplates">http://www.ncl.ucar.edu/Applications/Templates/#ESMFRegriddingTemplates</a><br></div><div class="gmail_default"><br></div><div class="gmail_default">In particular, the "ESMF_curv_to_curv.ncl" one, which is a generic one for going from one curvilinear grid to another.</div><div class="gmail_default"><br></div><div class="gmail_default">--Mary</div><div class="gmail_default"><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jul 10, 2017 at 9:40 AM, Jiande Wang <span dir="ltr"><<a href="mailto:jiande.wang@noaa.gov" target="_blank">jiande.wang@noaa.gov</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<p>Mary:</p>
<p> Thanks for your information. <br>
</p>
<p> I realized that I should post my question on ncl-talk instead
of ncard-talk later. This is my first time to use ncl forum.</p>
<p> The source and destination data are all represented in 2D
lat/lon. I will take a close look on the example and take a try.</p>
<p><br>
</p>
<p>Cheers,</p>
<p>Jiande<br>
</p><div><div class="h5">
<p> <br>
</p>
<br>
<div class="m_-7936449566598872546moz-cite-prefix">On 7/10/2017 9:19 AM, Mary Haley wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div style="font-size:small">Dear Jiande,</div>
<div style="font-size:small"><br>
</div>
<div style="font-size:small">ncarg-talk is
for people with NCAR Graphics questions.</div>
<div style="font-size:small"><br>
</div>
<div style="font-size:small">For NCL
questions, please post to <a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.edu</a>:</div>
<div style="font-size:small"><br>
</div>
<div><a href="http://www.ncl.ucar.edu/Support/email_lists.shtml" target="_blank">http://www.ncl.ucar.edu/<wbr>Support/email_lists.shtml</a><br>
</div>
<div><br>
</div>
<div>I think you should be able to regrid
the tripolar directly to a tripolar grid. Both tripolar grids
are curvilinear, correct? That is, they are represented by 2D
lat/lon grids?</div>
<div><br>
</div>
<div>If so, see example #11 at:</div>
<div><br>
</div>
<div><a href="http://www.ncl.ucar.edu/Applications/ESMF.shtml#ex11" target="_blank">http://www.ncl.ucar.edu/<wbr>Applications/ESMF.shtml#ex11</a><br>
</div>
<div><br>
</div>
<div>This example goes from a tripolar to
MPAS grid, but I believe you could modify these lines:</div>
<div><br>
</div>
<div>
<div> Opt@DstGridLat = latCell
; Destination grid</div>
<div> Opt@DstGridLon = lonCell</div>
<div> Opt@DstGridType =
"unstructured"</div>
<div><br>
</div>
<div>to:</div>
<div><br>
</div>
<div>
<div> Opt@DstGridLat =
dst_lat ; Destination grid</div>
<div> Opt@DstGridLon =
dst_lon</div>
<div> Opt@DstGridType =
"curvilinear" <br>
</div>
<div><br>
</div>
<div>Where dst_lat and dst_lon are the
2D lat/lon grid for the destination tripolar grid.</div>
<div><br>
</div>
<div>You may also want to change this
to whatever interpolation method you want ("bilinear" is
the default):</div>
<div><br>
</div>
<div> Opt@InterpMethod =
"patch" ; bilinear, conserve, neareststod, nearestdtos</div>
<div><br>
</div>
<div>If you use "conserve", then you
should also provide the grid corners. The ESMF examples
page explains some of this.</div>
<div><br>
</div>
<div>Finally, if your source and/or
destination grids are regional, you should also set:</div>
<div><br>
</div>
<div>Opt@SrcRegional = True ; if
source tripolar is regional</div>
<div>Opt@DstRegional = True ; if
destination tripolar is regional</div>
<div><br>
</div>
<div>--Mary</div>
<div><br>
</div>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Jul 6, 2017 at 2:57 PM, Jiande
Wang - NOAA Affiliate <span dir="ltr"><<a href="mailto:jiande.wang@noaa.gov" target="_blank">jiande.wang@noaa.gov</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div>Hi,</div>
<div> I am new to NCL.</div>
<div> I have a tripolar grid ocean data and want to regrid
it to another tripolar grid.</div>
<div> What I plan to do is first regrid the original
tripolar grid data to regular lat/lon data. Then I will
regrid the regular data to new tripolar grid.</div>
<div> I know what to do in the first step, but not clear
on how to do in the second step.</div>
<div> Has any one have experience or script on my task?</div>
<div><br>
</div>
<div> Your suggestion will be appreciated.</div>
<div><br>
</div>
<div>Thanks</div>
<span class="m_-7936449566598872546HOEnZb"><font color="#888888">
<div>Jiande</div>
</font></span></div>
<br>
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</blockquote>
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<br>
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</blockquote>
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