topic Re: CGVD28 to CGVD2013 Transformation File Format in Coordinate Reference Systems Questions

CGVD28 to CGVD2013 Transformation File Format

KentBuchanan — Mon, 04 Feb 2019 16:10:28 GMT

I'd like to be able to convert between two Canadian vertical coordinate systems: CGVD28 and CGVD2013. The staff at Natural Resources Canada have a conversion grid which is in ".byn" format (Canadian Geodetic Survey binary geoid file), but have offered to convert to another format if ArcGIS can't read/use it. I don't have a handle on the different methods & formats supported, and which would be most appropriate. Melita Kennedy‌, what can I tell them? Or - is this file something ESRI already has in hand?

Re: CGVD28 to CGVD2013 Transformation File Format

DanPatterson_Retired — Tue, 05 Feb 2019 03:29:43 GMT

Well Melita thought it would be available in ArcMap 10.7 and in ArcGIS Pro 2.3

https://community.esri.com/message/762405-re-is-it-possible-to-apply-a-vertical-datum-transformation-to-a-las-dataset-la…

There are other references in that thread, of which you have discovered. Canada doesn't provide those tools other than for manual entry and not file base. The Data Interoperability extension may have it built in at present, but I haven't checked.

Melita Kennedy‌ any news, re 2.3 or 10.7?

Re: CGVD28 to CGVD2013 Transformation File Format

MelitaKennedy — Fri, 08 Feb 2019 00:17:45 GMT

I replayed to the other thread. No, didn't make it. It's now on the list for 2.4/10.7.1.

Re: CGVD28 to CGVD2013 Transformation File Format

DanPatterson_Retired — Fri, 08 Feb 2019 00:20:16 GMT

Thanks Melita

Re: CGVD28 to CGVD2013 Transformation File Format

MattWilkie1 — Fri, 15 Nov 2019 17:23:23 GMT

Vote this up at Need for ArcGIS Pro tool to convert vertical Datum (CGVD1928 ↔ CGVD2013)

Re: CGVD28 to CGVD2013 Transformation File Format

SarahNorth — Thu, 27 Aug 2020 00:17:29 GMT

Has this been added for ArcMap 10.8.1? I'm hoping it's there, but I can't find it.
Or Pro 2.6?

Re: CGVD28 to CGVD2013 Transformation File Format

MelitaKennedy — Fri, 06 Nov 2020 22:39:54 GMT

Sorry, not yet!! My team hopes to concentrate on geoid models/vertical transformation grids in the next release.

Re: CGVD28 to CGVD2013 Transformation File Format

GIScs — Fri, 08 Jul 2022 22:53:53 GMT

@MelitaKennedy Hi Melita, curious about this! As of 2022, is there a tool for CGVD28 <-> CGVD13? Thanks you!

Re: CGVD28 to CGVD2013 Transformation File Format

BojanŠavrič — Fri, 15 Jul 2022 19:09:16 GMT

@GIScs

Yes, we do support conversion of heights between CGVD28 and CGVD 2013 and CGVD 2013 (CGG2013a). You can use Project tool with Vertical option turned on, or you can do it on-the-fly in ArcGIS Pro.

Please note, you will need to install supplementary coordinate system files, which include CGG2013 and CGG2013a geoid models and other conversion grid files.

I hope this helps,
Bojan

Re: CGVD28 to CGVD2013 Transformation File Format

BojanŠavrič — Fri, 15 Jul 2022 19:17:56 GMT

Please note that we added support for vertical transformations between CGVD28 and CGVD2013 in ArcGIS Pro 2.9. You will need to install supplementary coordinate system files, which include CGG2013 and CGG2013a geoid models and other conversion grid files.

I hope this helps,
Bojan