<div dir="ltr">Ok, thanks for the file. Here's a gist just to show you it works, I use R so I've got some checks I do around the core gdalwarp call which can be as minimal as<div><br></div><div>gdalwarp 20220902T00Z_MSC_HRDPS_HGT_SFC_RLatLon0.0225_P001.grib2 out.tif -t_srs "OGC:CRS84"<br></div><div><br></div><div>You should consider the specification of the target grid yourself, with a combination of some of -tr, -ts, -te, and -t_srs arguments. Also the -r resampling argument, default is nearest neighbour. </div><div><br></div><div><a href="https://gist.github.com/mdsumner/d73748c44aef4a0923760401d3dc605d">https://gist.github.com/mdsumner/d73748c44aef4a0923760401d3dc605d</a><br></div><div><br></div><div>Cheers, Mike</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Sep 5, 2022 at 5:21 PM De Juan De España, Javier <<a href="mailto:jajuan_ext@acciona.com">jajuan_ext@acciona.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg5527682935225969301">
<div lang="ES" style="overflow-wrap: break-word;">
<div class="m_5527682935225969301WordSection1">
<p class="MsoNormal"><span>Hi Mike!<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>Thank you very much for your response.<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>Attached you can find a grib2. Trying to test this on QGIS (Uses GDAL behind), it automatically opens it with right projection so I guess GDAL Will do the same.<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>In this file, first grid point should be something like:<u></u><u></u></span></p>
<p class="MsoNormal"><img width="144" height="36" style="width: 1.5in; height: 0.375in;" id="m_5527682935225969301Imagen_x0020_8" src="cid:1830cc834004cff311"><span><u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span>Thank you very much!!<u></u><u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<p class="MsoNormal"><span><u></u> <u></u></span></p>
<div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm">
<p class="MsoNormal"><b>De:</b> Michael Sumner <<a href="mailto:mdsumner@gmail.com" target="_blank">mdsumner@gmail.com</a>> <br>
<b>Enviado el:</b> sábado, 3 de septiembre de 2022 8:59<br>
<b>Para:</b> De Juan De España, Javier <<a href="mailto:jajuan_ext@acciona.com" target="_blank">jajuan_ext@acciona.com</a>><br>
<b>CC:</b> gdal-dev <<a href="mailto:gdal-dev@lists.osgeo.org" target="_blank">gdal-dev@lists.osgeo.org</a>><br>
<b>Asunto:</b> EXT: Re: [gdal-dev] Rotated lat lon projection<u></u><u></u></p>
</div>
<p class="MsoNormal"><u></u> <u></u></p>
<div>
<p class="MsoNormal">First step is try shoving it through the warper:<u></u><u></u></p>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">gdalwarp <a href="https://clicktime.symantec.com/15t5ZrhtFMk6q5dh8yXpr?h=f3NsNfYLCjuppp90Nv9-oEa-gZU0oRBfBuHIbBwMVFs=&u=http://in.nc" target="_blank">
in.nc</a> out.tif <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">set lonlat extent with -te and resolution with -ts or -tr<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">GDAL knows about projections and internal coordinate arrays and often this is enough, the smart things come down to what output grid you define and what resampling algorithm is used and whether it's appropriate (beware of vector quantities
for example).<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">Use a VRT intermediate to first select out one band to test with (gdal_translate
<a href="https://clicktime.symantec.com/15t5ZrhtFMk6q5dh8yXpr?h=f3NsNfYLCjuppp90Nv9-oEa-gZU0oRBfBuHIbBwMVFs=&u=http://in.nc" target="_blank">
in.nc</a> in1.vrt -b 1). If you have a test file I'm happy to explore.<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">Even if the auto stuff doesn't work you can engineer a lot with just command line args and VRT even for complex grids.<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">Cheers, Mike<u></u><u></u></p>
</div>
</div>
<p class="MsoNormal"><u></u> <u></u></p>
<div>
<div>
<p class="MsoNormal">On Thu, 1 Sept 2022, 23:57 De Juan De España, Javier, <<a href="mailto:jajuan_ext@acciona.com" target="_blank">jajuan_ext@acciona.com</a>> wrote:<u></u><u></u></p>
</div>
<blockquote style="border-top:none;border-right:none;border-bottom:none;border-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class="MsoNormal">Hi!<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">We are developping a meteorology project in the Canadian domain where we use gdal to manage grib files.
<u></u><u></u></p>
<p class="MsoNormal">These
<b><span style="color:black">files are “rotated lat-lon” and we would like to switch to “regular lat-lon”</span></b><span style="color:black">
</span>easily. I’m concerned that lastest versions of gdal can do this, but i would really appreciate some indications or information about how to do this.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Thank very much!<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Javier de Juan<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10pt;font-family:Helvetica,sans-serif;color:black"> </span><u></u><u></u></p>
<table border="0" cellspacing="0" cellpadding="0" align="left" width="396" style="width:296.7pt;margin-left:5.25pt;margin-right:5.25pt">
<tbody>
<tr style="height:7.55pt">
<td colspan="2" rowspan="3" valign="top" style="padding:0cm;height:7.55pt">
<p class="MsoNormal" align="right" style="text-align:right">
<span style="font-size:10.5pt;color:black"><img border="0" width="149" height="84" style="width: 1.55in; height: 0.875in;" id="m_5527682935225969301_x0000_i1031" alt="logo-bau"></span><u></u><u></u></p>
</td>
<td width="9" rowspan="4" valign="top" style="width:6.75pt;padding:0cm;height:7.55pt">
<p class="MsoNormal">
<span style="font-size:10.5pt;color:black"> </span><u></u><u></u></p>
</td>
<td width="3" rowspan="4" valign="top" style="width:2.4pt;background:rgb(212,211,210);padding:0cm;height:7.55pt">
<p class="MsoNormal">
<span style="font-size:10.5pt;color:black"> </span><u></u><u></u></p>
</td>
<td width="10" rowspan="4" valign="top" style="width:7.55pt;padding:0cm;height:7.55pt">
<p class="MsoNormal">
<span style="font-size:10.5pt;color:black"> </span><u></u><u></u></p>
</td>
<td width="214" style="width:160.75pt;padding:0cm;height:7.55pt">
<p class="MsoNormal">
<b><span style="font-size:10.5pt;color:black">Javier de Juan de España</span></b><u></u><u></u></p>
</td>
</tr>
<tr style="height:50.35pt">
<td width="214" valign="top" style="width:160.75pt;padding:0cm;height:50.35pt">
<p class="MsoNormal" style="background:white">
<span style="font-size:9pt;color:black">Project Manager</span><u></u><u></u></p>
<p class="MsoNormal" style="background:white">
<span style="font-size:8pt;color:black">Smart Society Skill Center </span><u></u><u></u></p>
<p class="MsoNormal" style="background:white">
<span style="font-size:8pt;color:black">Digital Hub</span><u></u><u></u></p>
</td>
</tr>
<tr style="height:37.95pt">
<td width="214" valign="top" style="width:160.75pt;padding:0cm;height:37.95pt">
<p class="MsoNormal">
<span style="font-size:8pt;color:rgb(103,103,103)">Avda Europa, 18</span><u></u><u></u></p>
<p class="MsoNormal">
<span style="font-size:8pt;color:rgb(103,103,103)">28108 Alc</span><span lang="PT-BR" style="font-size:8pt;color:rgb(103,103,103)">obendas (Madrid) – Spain</span><u></u><u></u></p>
<p class="MsoNormal">
<span lang="PT-BR" style="font-size:8pt;color:rgb(103,103,103)">+34 687 53 86 53</span><u></u><u></u></p>
</td>
</tr>
<tr style="height:7.05pt">
<td width="66" style="width:49.8pt;padding:0cm 3.75pt 0cm 0cm;height:7.05pt">
<p class="MsoNormal" align="right" style="text-align:right">
<span style="font-size:8.5pt;color:rgb(103,103,103)"><img border="0" width="20" height="5" style="width: 0.2083in; height: 0.05in;" id="m_5527682935225969301_x0000_i1030" alt="flecha"></span><u></u><u></u></p>
</td>
<td width="93" style="width:69.45pt;padding:0cm;height:7.05pt">
<p class="MsoNormal" align="right" style="text-align:right">
<span style="color:black"><a href="https://clicktime.symantec.com/15t5pMHjdCnt4v7TmejGi?h=bsqBMl9kpV7pNEC9p7lA_BzAvITG8lgP7QbVur0i_lg=&u=https://www.acciona.com/es/" target="_blank"><span style="font-size:7.5pt;color:rgb(103,103,103)">WWW.ACCIONA.COM</span></a></span><u></u><u></u></p>
</td>
<td style="padding:0cm;height:7.05pt">
<table border="0" cellspacing="0" cellpadding="0" width="99" style="width:74.05pt">
<tbody>
<tr style="height:7.3pt">
<td width="16" style="width:12.35pt;padding:0cm;height:7.3pt">
<p class="MsoNormal">
<a href="https://clicktime.symantec.com/15t5jX6TAb7HeyHYE6L86?h=-cIW40zXsiDGS34xBnF2qp0NFHQYcOLzae3_uhhM6P0=&u=https://twitter.com/ACCIONA" target="_blank"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman",serif;text-decoration:none"><img border="0" width="16" height="15" style="width: 0.1666in; height: 0.1583in;" id="m_5527682935225969301_x0000_i1029" alt="twitter"></span></a><u></u><u></u></p>
</td>
<td width="16" style="width:12.35pt;padding:0cm;height:7.3pt">
<p class="MsoNormal">
<a href="https://clicktime.symantec.com/15t5uBV25pUUUrwPKD8RL?h=54T_VUKmdZlQ25O0tl3wf8KTqvyNg3vKMSd6fc0UwDU=&u=https://www.facebook.com/acciona" target="_blank"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman",serif;text-decoration:none"><img border="0" width="16" height="15" style="width: 0.1666in; height: 0.1583in;" id="m_5527682935225969301_x0000_i1028" alt="facebook"></span></a><u></u><u></u></p>
</td>
<td width="20" style="width:14.8pt;padding:0cm;height:7.3pt">
<p class="MsoNormal">
<a href="https://clicktime.symantec.com/15t64qsb13qfJkbEQKvia?h=qP3wZRbx16RE2f9KqOZAFBfB0BsCiaiJdhQ6uIgX_GY=&u=https://www.linkedin.com/company/acciona" target="_blank"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman",serif;text-decoration:none"><img border="0" width="16" height="15" style="width: 0.1666in; height: 0.1583in;" id="m_5527682935225969301_x0000_i1027" alt="link"></span></a><u></u><u></u></p>
</td>
<td width="20" style="width:14.8pt;padding:0cm;height:7.3pt">
<p class="MsoNormal">
<a href="https://clicktime.symantec.com/15t69g4sTfXFihR9wtKsC?h=smitgw2XvRmwLj9vHPFdbXjFyts7YW6yT7TAiJN1aOo=&u=https://www.youtube.com/user/interacciona1?sub_confirmation%3D1" target="_blank"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman",serif;text-decoration:none"><img border="0" width="16" height="15" style="width: 0.1666in; height: 0.1583in;" id="m_5527682935225969301_x0000_i1026" alt="you"></span></a><u></u><u></u></p>
</td>
<td width="26" style="width:19.75pt;padding:0cm;height:7.3pt">
<p class="MsoNormal">
<a href="https://clicktime.symantec.com/15t5z1gJYSA4tomJrmXZx?h=lsjgYLW3UgtJbbPBFBcqNBMP-9OUhZJgVLPeWqFyTaE=&u=https://www.instagram.com/acciona/" target="_blank"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman",serif;text-decoration:none"><img border="0" width="16" height="15" style="width: 0.1666in; height: 0.1583in;" id="m_5527682935225969301_x0000_i1025" alt="insta"></span></a><u></u><u></u></p>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<td width="83" style="width:62.25pt;padding:0cm"></td>
<td width="116" style="width:87pt;padding:0cm"></td>
<td width="11" style="width:8.25pt;padding:0cm"></td>
<td width="4" style="width:3pt;padding:0cm"></td>
<td width="13" style="width:9.75pt;padding:0cm"></td>
<td width="268" style="width:201pt;padding:0cm"></td>
</tr>
</tbody>
</table>
<p class="MsoNormal"><span lang="EN-US" style="color:black"> </span><u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:8pt;font-family:"Calibri Light",sans-serif"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:"Calibri Light",sans-serif"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:"Calibri Light",sans-serif"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:"Calibri Light",sans-serif">Este mensaje se dirige exclusivamente a su destinatario, y puede contener información confidencial sometida
a secreto profesional, o cuya divulgación esté legalmente prohibida. Cualquier opinión en él contenida es exclusiva de su autor y no representa necesariamente la opinión de la empresa. Si ha recibido este mensaje por error, le rogamos nos lo comunique de forma
inmediata por esta misma vía y proceda a su eliminación, así como a la de cualquier documento adjunto al mismo. El correo electrónico vía Internet no es seguro y no se puede garantizar que no haya errores ya que puede ser interceptado, modificado, perdido
o destruido, o contener virus. Cualquier persona que se ponga en contacto con nosotros por correo electrónico se considerará que asume estos riesgos.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:"Calibri Light",sans-serif"> </span><u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8pt;font-family:"Calibri Light",sans-serif">This e-mail is addressed exclusively to the recipient and may contain privileged information under
a professional confidential agreement or it may be against the law to disclose its contents. Any opinion contained in it belongs exclusively to his/her author and does not necessarily reflect the company’s view. If you receive this e-mail in error, please
let us know immediately (by return e-mail) and proceed to its destruction, as well as any document attached to it. The sending of e-mails through the Internet is not safe and, therefore, error-free communications cannot be guaranteed, as they can be intercepted,
changed, misled or destroyed or they might contain a virus. Any user contacting us through e-mails shall be understood to be assuming these risks.</span><u></u><u></u></p>
</div>
</div>
<p class="MsoNormal">_______________________________________________<br>
gdal-dev mailing list<br>
<a href="mailto:gdal-dev@lists.osgeo.org" target="_blank">gdal-dev@lists.osgeo.org</a><br>
<a href="https://clicktime.symantec.com/15t5eguAhyRhF2TcgXvyU?h=Jd9BayZPGNA7ZxhvY-_xqfQhPjPrNZePw5xra7kazGY=&u=https://lists.osgeo.org/mailman/listinfo/gdal-dev" target="_blank">https://lists.osgeo.org/mailman/listinfo/gdal-dev</a><u></u><u></u></p>
</blockquote>
</div>
</div>
<div class="m_5527682935225969301WordSection1">
<p class="MsoNormal"><span style="font-size:8pt;line-height:107%;font-family:"Calibri Light",sans-serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;line-height:107%;font-family:"Calibri Light",sans-serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;line-height:107%;font-family:"Calibri Light",sans-serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;line-height:107%;font-family:"Calibri Light",sans-serif">Este mensaje se dirige exclusivamente a su destinatario, y puede contener información
confidencial sometida a secreto profesional, o cuya divulgación esté legalmente prohibida. Cualquier opinión en él contenida es exclusiva de su autor y no representa necesariamente la opinión de la empresa. Si ha recibido este mensaje por error, le rogamos
nos lo comunique de forma inmediata por esta misma vía y proceda a su eliminación, así como a la de cualquier documento adjunto al mismo. El correo electrónico vía Internet no es seguro y no se puede garantizar que no haya errores ya que puede ser interceptado,
modificado, perdido o destruido, o contener virus. Cualquier persona que se ponga en contacto con nosotros por correo electrónico se considerará que asume estos riesgos.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;line-height:107%;font-family:"Calibri Light",sans-serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8pt;line-height:107%;font-family:"Calibri Light",sans-serif">This e-mail is addressed exclusively to the recipient
and may contain privileged information under a professional confidential agreement or it may be against the law to disclose its contents. Any opinion contained in it belongs exclusively to his/her author and does not necessarily reflect the company’s view.
If you receive this e-mail in error, please let us know immediately (by return e-mail) and proceed to its destruction, as well as any document attached to it. The sending of e-mails through the Internet is not safe and, therefore, error-free communications
cannot be guaranteed, as they can be intercepted, changed, misled or destroyed or they might contain a virus. Any user contacting us through e-mails shall be understood to be assuming these risks.<u></u><u></u></span></p>
</div>
</div>
</div></blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature">Michael Sumner<br>Software and Database Engineer<br>Australian Antarctic Division<br>Hobart, Australia<br>e-mail: <a href="mailto:mdsumner@gmail.com" target="_blank">mdsumner@gmail.com</a></div>