Question: Elevation and Depth/Height

[dschristianson]

Unclear how to handle the following elevation + depth/height cases:

Feature is a point at a given height or depth from the ground surface.

1. Elevation is reported as ground surface. Height / depth of the feature is also reported relative to ground surface.
2. Elevation is reported as the absolute location of the feature. Height / depth of the feature is also reported relative to the ground surface.

We have been implementing height / depth in both cases as a representative coordinate in the plugins thus far.

Is elevation in case 1 a representative coordinate and in case 2 it is absolute?

We should probably add some documentation on how to use / interpret these location fields in the data model.

[charuleka]

Is the question whether elevation in basin-3d needs to be represented as an absolute or relative value? I would deal with this as a unit conversion issue. We cannot do the conversion without the top of casing or ground reference elevation

…

On Thu, Sep 14, 2023 at 1:36 PM D.S. Christianson ***@***.***> wrote: Unclear how to handle the following elevation + depth/height cases: Feature is a point at a given height or depth from the ground surface. 1. Elevation is reported as ground surface. Height / depth of the feature is also reported relative to ground surface. 2. Elevation is reported as the absolute location of the feature. Height / depth of the feature is also reported relative to the ground surface. We have been implementing height / depth in both cases as a representative coordinate in the plugins thus far. Is elevation in case 1 a representative coordinate and in case 2 it is absolute? We should probably add some documentation on how to use / interpret these location fields in the data model. — Reply to this email directly, view it on GitHub <#175>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC2PYFAP56XANQOZ266Y3ETX2NTGBANCNFSM6AAAAAA4YZMJVM> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[dschristianson]

It's about how to report elevation when the point is not at the ground surface. Data sources may treat their location information differently as in the cases as described above. Assume there is a reference for the depth / height value.