[Qgis-user] Convert an ALOS PALSAR DEM from ellipsoidal to geoid.

[Ujaval Gandhi]

I have a blog post explaining how to do the conversion using GDAL
https://spatialthoughts.com/2019/10/26/convert-between-orthometric-and-ellipsoidal-elevations-using-gdal

On Tue, 3 Jan 2023 at 11:09 AM, Eddison Araya via QGIS-User <
qgis-user at lists.osgeo.org> wrote:

> Hi, thanks, skip previous message, apparently you're right, it's emg96
>
> Thank you
>
> Eddison
>
> [image: image.png]
>
>
>
> El lun, 2 ene 2023 a las 20:08, Eddison Araya (<eddisonjose at gmail.com>)
> escribió:
>
>>
>> Hello yes, thank you very much, according to that source it is EMG-2008
>>
>> Regards!
>>
>> eddison
>>
>> [image: image.png]
>>
>>
>>
>> El lun, 2 ene 2023 a las 11:16, Nicolas Cadieux (<
>> njacadieux.gitlab at gmail.com>) escribió:
>>
>>> Hi,
>>>
>>> Will do. I’am heading out of the woods now.  In the mean time, look at
>>> the metadata to find out what ellipsoid is being used by the file.  I
>>> believe it’s probably EMG96 but can you confirm?
>>>
>>> Nicolas Cadieux
>>> https://gitlab.com/njacadieux
>>>
>>> Le 2 janv. 2023 à 08:01, Eddison Araya <eddisonjose at gmail.com> a écrit :
>>>
>>> 
>>> Hello Nicolás Cadieux, I hope you had a nice end and beginning of the
>>> year!
>>>
>>> Ok very good, so I await your message with the step by step, just in
>>> case I attach the image:
>>>
>>>
>>>
>>> https://drive.google.com/file/d/1mJvB77MMOF86X7I4qwtS3i7UYq1wYmGR/view?usp=share_link
>>>
>>>
>>> Greetings and thank you very much
>>>
>>> Eddison
>>>
>>>
>>>
>>>
>>> El jue, 29 dic 2022 a las 21:11, Nicolas Cadieux (<
>>> njacadieux.gitlab at gmail.com>) escribió:
>>>
>>>> Hi,
>>>>
>>>> Google  vdatum https://vdatum.noaa.gov/  <https://vdatum.noaa.gov/> Contact
>>>> me early next year and I can help you step by step.  I can’t help you more
>>>> now because i’am far from civilisation with very limited internet access.
>>>>
>>>> Nicolas Cadieux
>>>> https://gitlab.com/njacadieux
>>>>
>>>> Le 28 déc. 2022 à 09:52, Eddison Araya via QGIS-User <
>>>> qgis-user at lists.osgeo.org> a écrit :
>>>>
>>>> 
>>>> Hello, a pleasure to greet you.
>>>>
>>>> I need to convert an ALOS PALSAR DEM from ellipsoidal to geoid.
>>>>
>>>> Does anyone know how to do this process step by step?
>>>>
>>>> Thank you
>>>>
>>>> Eddison
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> QGIS-User mailing list
>>>> QGIS-User at lists.osgeo.org
>>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>>>
>>>> _______________________________________________
> QGIS-User mailing list
> QGIS-User at lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
-- 
---
Ujaval Gandhi
Spatial Thoughts
www.spatialthoughts.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20230103/9e4aeb34/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 78264 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20230103/9e4aeb34/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 16695 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20230103/9e4aeb34/attachment-0003.png>