Re: Fwd: CF Convention workshop 2026 @ ECMWF
Alan Snow via gdal-dev <[email protected]> Wed, 15 Jul 2026 21:17:36 -0500
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--000000000000050c7a0656b10c82 Content-Type: multipart/related; boundary="000000000000050c7a0656b10c81" --000000000000050c7a0656b10c81 Content-Type: multipart/alternative; boundary="000000000000050c780656b10c80" --000000000000050c780656b10c80 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable https://xkcd.com/927/ My brief journey into CF Conventions led me to understand that CF Conventions are for a specific software community. It covers all of that communities use cases and can get complex in order to achieve that. The convention isn't really meant to cover all use cases for the broader geospatial community. My hope is that any effort to standardize across the broader community will stay to some simple core features that cover the majority of use cases without trying to cover all of them. From the GDAL/PROJ perspective, a CRS WKT and a GeoTransform will cover most use cases. I would just want them to put that in standard locations in the file metadata where relevant. https://geozarr.org/ did a nice job of creating a simple convention that does just that. Simple for the broader geospatial community to use without becoming too complicated. That makes adoption much easier across the community. Best, Alan Snow On Wed, Jul 15, 2026, 1:07=E2=80=AFPM Even Rouault via gdal-dev < [email protected]> wrote: > Hi, > > if anyone has feedback about GDAL vs CF/netCDF/GRIB to provide to ECMWF > > Even > -------- Message transf=C3=A9r=C3=A9 -------- > Sujet : CF Convention workshop 2026 @ ECMWF > Date : Tue, 14 Jul 2026 12:45:14 +0000 > De : Sebastien Villaume <[email protected]> > <[email protected]> > Pour : [email protected] <[email protected]> > <[email protected]> > Copie =C3=A0 : Lorea Garcia San Martin <[email protected]> > <[email protected]> > > > *Dear Even Rouault,* > > I am writing on behalf of the organising committee of the CF Conventions > workshop 2026 <https://events.ecmwf.int/event/568/>, taking place on *21= =E2=80=9324 > September 2026* at ECMWF in Bonn, Germany (hybrid, co-hosted with the > Copernicus Climate Change Service). > > One of the topics that has generated considerable interest within the CF > community is *format interoperability*, and in particular the role that > conventions such as CF can play in facilitating interoperability across > different data formats and software ecosystems. Given your long-standing > involvement with GDAL and your perspective as Chair of the GDAL Project > Steering Committee, we would be very interested in having you participate > in the workshop and contribute to these discussions. > > We believe that the GDAL community has valuable experience and insights > into the practical challenges of interoperability, including what works > well today, where difficulties remain, and where conventions such as CF a= nd > formats such as netCDF and GRIB could evolve to better support users and > software developers. > > Depending on the final programme and available time, there may also be an > opportunity for you=E2=80=94or another GDAL contributor you would recomme= nd=E2=80=94to give > a presentation on these topics. At this stage we would be interested in > having the GDAL perspective represented in the workshop discussions. > > There is no registration fee for the workshop, and registration > <https://events.ecmwf.int/event/568/registrations/440/> is now open. > Please note that we are unfortunately unable to cover speaker/attendee > travel or accommodation costs. > > We would be delighted to hear whether you might be interested in > participating, and we would be happy to provide further details about the > workshop and programme. > > *On behalf of the organising **committee**,* > Dr S=C3=A9bastien Villaume > Senior Analyst > Forecast Department > European Centre for Medium-Range Weather Forecasts > *Reading, UK* | Bologna, Italy | Bonn, Germany > *e:* [email protected] > *t:* +44 118 949 2301 *m:* +44 78 2552 1592 > *w:* ecmwf.int <https://www.ecmwf.int/> <https://www.ecmwf.int/>| staff > profile > <https://www.ecmwf.int/en/about/who-we-are/staff-profiles/sebastien-villa= ume> | > *twitter:* @s_villaume <https://twitter.com/s_villaume> > [image: [email protected]] > This message and any attachments are intended for the sole use of the > addressee(s) and may contain confidential and privileged information. Any > unauthorised use, disclosure, dissemination or distribution (in whole or = in > part) of its contents is not permitted - read full disclaimer > <https://www.ecmwf.int/en/email-disclaimer> > _______________________________________________ > gdal-dev mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/gdal-dev > --000000000000050c780656b10c80 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"auto"><div dir=3D"auto"><div><a href=3D"https://xkcd.com/927/" = target=3D"_blank" rel=3D"noreferrer">https://xkcd.com/927/</a></div><div di= r=3D"auto"><br></div></div>My brief journey into CF Conventions led me to u= nderstand that CF Conventions are for a specific software community. It cov= ers all of that communities use cases and can get complex in order to achie= ve that. The convention isn't really meant to cover all use cases for t= he broader geospatial community.<div dir=3D"auto"><br></div><div dir=3D"aut= o">My hope is that any effort to standardize across the broader community w= ill stay to some simple core features that cover the majority of use cases = without trying to cover all of them.</div><div dir=3D"auto"><br></div><div = dir=3D"auto">From the GDAL/PROJ perspective, a CRS WKT and a GeoTransform w= ill cover most use cases. I would just want them to put that in standard lo= cations in the file metadata where relevant.</div><div dir=3D"auto"><br></d= iv><div dir=3D"auto"><a href=3D"https://geozarr.org/">https://geozarr.org/<= /a> did a nice job of creating a simple convention that does just that. Sim= ple for the broader geospatial community to use without becoming too compli= cated. That makes adoption much easier across the community.</div><div dir= =3D"auto"><br></div><div dir=3D"auto"><div dir=3D"auto">Best,<br><div data-= smartmail=3D"gmail_signature" dir=3D"auto"><div dir=3D"ltr"><div><div dir= =3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><font style=3D"font-fa= mily:arial,helvetica,sans-serif">Alan Snow</font><br></div></div></div></di= v></div></div></div></div></div></div><br><div class=3D"gmail_quote" dir=3D= "auto"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Jul 15, 2026, 1:07=E2= =80=AFPM Even Rouault via gdal-dev <<a href=3D"mailto:[email protected]= eo.org" target=3D"_blank" rel=3D"noreferrer">[email protected]</a>&g= t; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0p= x 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u= > =20 =20 =20 <div> <p>Hi,</p> <p>if anyone has feedback about GDAL vs CF/netCDF/GRIB to provide to ECMWF</p> <p>Even</p> <div>-------- Message transf=C3=A9r=C3=A9 -------- <table cellpadding=3D"0" cellspacing=3D"0" border=3D"0"> <tbody> <tr> <th valign=3D"BASELINE" align=3D"RIGHT" nowrap>Sujet=C2=A0: </th> <td>CF Convention workshop 2026 @ ECMWF</td> </tr> <tr> <th valign=3D"BASELINE" align=3D"RIGHT" nowrap>Date=C2=A0: </th= > <td>Tue, 14 Jul 2026 12:45:14 +0000</td> </tr> <tr> <th valign=3D"BASELINE" align=3D"RIGHT" nowrap>De=C2=A0: </th> <td>Sebastien Villaume <a href=3D"mailto:sebastien.villaume@ecm= wf.int" rel=3D"noreferrer noreferrer" target=3D"_blank"><sebastien.villa= [email protected]></a></td> </tr> <tr> <th valign=3D"BASELINE" align=3D"RIGHT" nowrap>Pour=C2=A0: </th= > <td><a href=3D"mailto:[email protected]" rel=3D"norefe= rrer noreferrer" target=3D"_blank">[email protected]</a> <a href=3D"mailto:[email protected]" rel=3D"noreferr= er noreferrer" target=3D"_blank"><[email protected]></a></td= > </tr> <tr> <th valign=3D"BASELINE" align=3D"RIGHT" nowrap>Copie =C3=A0=C2=A0: </th> <td>Lorea Garcia San Martin <a href=3D"mailto:[email protected]" rel=3D"nor= eferrer noreferrer" target=3D"_blank"><[email protected]&g= t;</a></td> </tr> </tbody> </table> <br> <br> =20 <div style=3D"direction:ltr;font-family:Aptos,Arial,Helvetica,sans-se= rif;font-size:12pt;color:rgb(0,0,0)"> <br> </div> <p style=3D"direction:ltr"><span style=3D"font-family:Aptos,Arial,Hel= vetica,sans-serif;font-size:12pt;color:rgb(0,0,0);text-transform:none"><b>D= ear Even Rouault,</b></span></p> <p><span style=3D"font-family:Aptos,Arial,Helvetica,sans-serif;font-s= ize:12pt;color:rgb(0,0,0);text-transform:none">I am writing on behalf of the organising committee of the <a href=3D"https://events.ecmwf.int/event/568/" style=3D"margin-t= op:0px;margin-bottom:0px" rel=3D"noreferrer noreferrer" target=3D"_blank"> CF Conventions workshop 2026</a>, taking place on <b>21=E2=80= =9324 September 2026</b>=C2=A0at ECMWF in Bonn, Germany (hybrid, co-hosted with the Copernicus Climate Change Service).</span></p> <p><span style=3D"font-family:Aptos,Arial,Helvetica,sans-serif;font-s= ize:12pt;color:rgb(0,0,0);text-transform:none">One of the topics that has generated considerable interest within the CF community is <b>format interoperability</b>, and in particular the role that conventions such as CF can play in facilitating interoperability across different data formats and software ecosystems. Given your long-standing involvement with GDAL and your perspective as Chair of the GDAL Project Steering Committee, we would be very interested in having you participate in the workshop and contribute to these discussions.</span></p> <p><span style=3D"font-family:Aptos,Arial,Helvetica,sans-serif;font-s= ize:12pt;color:rgb(0,0,0);text-transform:none">We believe that the GDAL community has valuable experience and insights into the practical challenges of interoperability, including what works well today, where difficulties remain, and where conventions such as CF and formats such as netCDF and GRIB could evolve to better support users and software developers.</span></p> <p><span style=3D"font-family:Aptos,Arial,Helvetica,sans-serif;font-s= ize:12pt;color:rgb(0,0,0);text-transform:none">Depending on the final programme and available time, there may also be an opportunity for you=E2=80=94or another GDAL contributor you wo= uld recommend=E2=80=94to give a presentation on these topics. </span>= <span style=3D"font-family:Aptos,Arial,Helvetica,sans-serif;font-size:12pt;= color:rgb(0,0,0)">A</span><span style=3D"font-family:Aptos,Arial,Helvetica,= sans-serif;font-size:12pt;color:rgb(0,0,0);text-transform:none">t this stage=C2=A0we would be interested in having the GDAL perspective represented in the workshop discussions.</span></p> <p><span style=3D"font-family:Aptos,Arial,Helvetica,sans-serif;font-s= ize:12pt;color:rgb(0,0,0);text-transform:none">There is no registration fee for the workshop, and <a href=3D"https://events.ecmwf.int/event/568/registrations/440/"= style=3D"margin-top:0px;margin-bottom:0px" rel=3D"noreferrer noreferrer" t= arget=3D"_blank"> registration</a>=C2=A0is now open. Please note that we are unfortunately unable to cover speaker/attendee travel or accommodation costs.</span></p> <p><span style=3D"font-family:Aptos,Arial,Helvetica,sans-serif;font-s= ize:12pt;color:rgb(0,0,0);text-transform:none">We would be delighted to hear whether you might be interested in participating, and we would be happy to provide further details about the workshop and programme.</span></p> <p><span style=3D"font-family:Aptos,Arial,Helvetica,sans-serif;font-s= ize:12pt;color:rgb(0,0,0)"><b>On behalf of the organising </b></span><span style=3D"font-family:Aptos,Arial,Helvetica,sans-= serif"><b>committee</b></span><span style=3D"font-family:Aptos,Arial,Helvet= ica,sans-serif;font-size:16px;color:rgb(0,0,0)"><b>,</b></span></p> <div id=3D"m_-2201842975533720821m_5918195770194187663ms-outlook-mobi= le-signature" style=3D"color:inherit;background-color:inherit"> <div class=3D"MsoNormal" style=3D"background-color:white;margin-bot= tom:4.5pt;font-family:Helvetica;font-size:10.5pt;color:rgb(0,81,130)"> Dr S=C3=A9bastien Villaume</div> <div class=3D"MsoNormal" style=3D"text-align:left;background-color:= white;font-family:Helvetica;font-size:10pt;color:rgb(76,76,76)"> Senior Analyst</div> <div class=3D"MsoNormal" style=3D"text-align:left;background-color:= white;font-family:Helvetica;font-size:10pt;color:rgb(76,76,76)"> Forecast Department</div> <div class=3D"MsoNormal" style=3D"text-align:left;background-color:= white;font-family:Helvetica;font-size:10pt;color:rgb(76,76,76)"> European Centre for Medium-Range Weather Forecasts</div> <div class=3D"MsoNormal" style=3D"text-align:left;background-color:= white;font-family:Helvetica;font-size:10pt"> <span style=3D"color:rgb(76,76,76)"><b>Reading, UK</b></span><spa= n style=3D"color:rgb(0,99,157)">=C2=A0| </span><span style=3D"color:rgb(76,76,76)">Bologna, Italy</span><= span style=3D"color:rgb(0,99,157)">=C2=A0| </span><span style=3D"color:rgb(76,76,76)">Bonn, Germany</span></= div> <div class=3D"MsoNormal" style=3D"text-align:left;background-color:= white;margin-top:4.5pt;font-family:Helvetica;font-size:10pt"> <span style=3D"color:rgb(0,99,157)"><b>e:</b>=C2=A0</span><span s= tyle=3D"color:rgb(0,0,100)"><a href=3D"mailto:[email protected]"= title=3D"mailto:[email protected]" style=3D"color:rgb(0,0,100)"= rel=3D"noreferrer noreferrer" target=3D"_blank">[email protected]= nt</a></span></div> <div class=3D"MsoNormal" style=3D"text-align:left;background-color:= white;font-family:Helvetica;font-size:10pt"> <span style=3D"color:rgb(0,99,157)"><b>t:</b>=C2=A0</span><span s= tyle=3D"color:rgb(76,76,76)">+44 118 949 2301 </span><span style=3D"color:rgb(0,99,157)"><b>m:</b>=C2=A0</span>= <span style=3D"color:rgb(76,76,76)">+44 78 2552 1592</span></div> <div class=3D"MsoNormal" style=3D"text-align:left;background-color:= white;margin-bottom:15pt"> <span style=3D"font-family:Helvetica;font-size:10pt;color:rgb(0,9= 9,157)"><b>w:</b>=C2=A0<a href=3D"https://www.ecmwf.int/" style=3D"color:rg= b(0,99,157)" rel=3D"noreferrer noreferrer" target=3D"_blank">ecmwf.int </a></span><span style=3D"font-family:Helvetica;font-size:10pt;= color:rgb(0,99,157);background-color:white"><a href=3D"https://www.ecmwf.in= t/" style=3D"color:rgb(0,99,157)" rel=3D"noreferrer noreferrer" target=3D"_= blank">=C2=A0</a>| </span><span style=3D"font-family:Helvetica;font-size:10pt;color:= rgb(0,99,157)"><a href=3D"https://www.ecmwf.int/en/about/who-we-are/staff-p= rofiles/sebastien-villaume" style=3D"color:rgb(0,99,157)" rel=3D"noreferrer= noreferrer" target=3D"_blank">staff profile</a>=C2=A0| </span><span style=3D"color:rgb(0,99,157)"= ><b>twitter:</b></span><span style=3D"color:black">=C2=A0</span><span style= =3D"font-family:Helvetica;font-size:10pt;color:rgb(0,99,157);background-col= or:white"><a href=3D"https://twitter.com/s_villaume" style=3D"color:rgb(0,9= 9,157)" rel=3D"noreferrer noreferrer" target=3D"_blank">@s_villaume</a></sp= an></div> <div class=3D"MsoNormal" style=3D"direction:ltr;text-align:left;bac= kground-color:white;margin-top:7.5pt;font-family:"Segoe UI",sans-= serif;font-size:10.5pt;color:rgb(39,39,39)"> <img src=3D"https://mail.google.com/mail/?ui=3D2&ik=3Dae8767f= 6c5&attid=3D0.1&th=3D19f6895610240396&view=3Dfimg&fur=3Dip&= amp;rm=3D19f6895610240396&sz=3Dw1600-h1000&attbid=3DANGjdJ_amXgVKxL= Y4Yk2QuP1MPnSJmZJP5C4Xb7itua5TklCf90-CQRQjVzV37YbT3ZKjmBv5UmfxSx0G0XyWLovrY= OttQQeMrGTog1c6ZyHXMUpDsigUijwA1RwBo8&disp=3Demb&realattid&zw" = alt=3D"[email protected]" id=3D"m_-2201842975533720821m_591= 8195770194187663Picture_x0020_1" width=3D"162" height=3D"30" style=3D"width= : 1.6875in; height: 0.3125in; max-width: 100%;"></div> <div class=3D"MsoNormal" style=3D"text-align:left;background-color:= white;margin-top:11.25pt;font-family:Helvetica;font-size:9pt"> <span style=3D"color:rgb(76,76,76)">This message and any attachments are intended for the sole use of the addressee(s) and may contain confidential and privileged information. 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