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<p>Fiat,</p>
<p>You could start by setting the environment variable /
configuration option GTIFF_REPORT_COMPD_CS to YES (see
<a class="moz-txt-link-freetext" href="https://gdal.org/drivers/raster/gtiff.html#configuration-options">https://gdal.org/drivers/raster/gtiff.html#configuration-options</a>),
that will make the GeoTIFF driver report a Compound CRS if the
GeoTIFF keys contain information on the vertical CRS/datum.</p>
<p>If that doesn't work, then you'll have to connect with the data
producer and ask him...</p>
<p>Even<br>
</p>
<div class="moz-cite-prefix">Le 16/06/2021 à 15:15, fiat lux a
écrit :<br>
</div>
<blockquote type="cite"
cite="mid:CAFHU0Ae5_OBY+BD__N_WC9CidB_PV-8Lnuhn60rbfL9Cgsn_xQ@mail.gmail.com">
<div dir="ltr">
<div>I need help with identifying vertical datum on raster for a
project that I am working on. When I run gdalinfo raster.tif,
I can identify the horizontal reference system as given by the
EPSG:XXXX. However, I am struggling identifying the vertical
reference system; which is a prerequisite for transforming
vertical datum using gdal. </div>
<div><br>
</div>
<div>Thanks for the help</div>
<div><br>
</div>
<div>Fiat </div>
</div>
<br>
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</blockquote>
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