GEOPARTY ROUND 1 - POD D -

Survey Stuff

100

The vertical datum commonly paired with NAD83 for modern surveys in North America.

What is NAVD88?

200

The difference between the orthometric height and the ellipsoid height.

What is the geoid? OR What is the Geoid separation?

300

Elevations determined by GPS are in reference to this.

What is the ellipsoid?

GPS and Errors

100

The type of error that occurs near tall buildings when using GPS.

What is multipath?

200

An decrease in positional accuracy will increase the value of this.

What is PDOP?

300

This GNSS correction method uses a base station to improve real‑time accuracy to the centimeter level.

 What is RTK (Real‑Time Kinematic)?

Projections

100

The Lambert Projection uses this shape.

What is a cone?

200

A Mercator Projection uses this shape. 

What is a cylinder? 

300

The scale factor varies in a Lambert Conformal Conic Projection with this.

What is latitude?