Update undulation information in User Guide
Email from Kent:
one thing related to the ROPP UG, table 5.1 with georeferencing info:
for 'geoid undulation' (say U) it says: Difference between ellipsoid and
geoid
The meaning of the difference of two quantities A and B is a little unclear.
For me it tends to be A-B, and I thus conclude that the table says this:
U>0: when the ellipsoid is above the geoid
U<0: when the ellipsoid is below the geoid
However, my understanding is that the undulation is defined in
the opposite way:
U>0: geoid above the ellipsoid
U<0: geoid below the ellipsoid
If you agree, please update the text in the table in the next version
such that it is fully clear how U is defined.
Thanks.
Kent
Change history
(4)
| Milestone: |
→ 2.0
|
| Version: |
2.0 → 1.2
|
| Resolution: |
→ fixed
|
| Status: |
new → closed
|
User Guide document for v1.2 (not released at time of change) updated with clarified definitions of undulation (Chapter 4 and Table 6.1). Ticket closed.