1
Q
What is geodesy
A
The study of the earth
2
Q
Every point along the geoid is perpendicular to gravity
True or false
A
True
3
Q
is ellipsoid readily mathematically defined
A
Yes
4
Q
what is a geoid
A
it is a equipotential gravitational surface based on a mean sea level
5
Q
Which ellipsoid fits america the most
A
clark ellipsoid of 1866
6
Q
GRS 80 and WGS 84 are ellipsoids that fits where the most?
A
Global
7
Q
what is geodical undulation
A
The difference between ellipsoid and geoid
8
Q
what is n, h, H, and what is the formula
A
n = h-H
h= geodetic height(height of a point above ellipsoid) H= orthometroc hei
9
Q
what does +ve and -ve height mean respectively?
A
+ve= geoid above ellipsoid, -ve= geoid below ellipsoid
geomatics
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