OPUS is an example of which surveying approach?

OPUS is an example of which surveying approach?

• A. GNSS processing method
• B. A level adjustment technique
• C. A boundary dispute resolution method
• D. An aerial photogrammetry technique

Answer: (A)

OPUS is a GNSS data processing method. It takes GPS observations collected at a site and, using corrections from a reference network, computes the precise coordinates of that site in a defined datum (such as NAD83 or WGS84). This approach relies on satellite signals and network corrections to derive position, rather than using ground-based height differences or imagery. It’s not a leveling technique, not a method for settling boundary disputes, and not a photogrammetry technique. OPUS is commonly used to quickly establish or verify precise positions by tying a point to a stable geodetic reference frame through GNSS processing.

OPUS is a GNSS data processing method. It takes GPS observations collected at a site and, using corrections from a reference network, computes the precise coordinates of that site in a defined datum (such as NAD83 or WGS84). This approach relies on satellite signals and network corrections to derive position, rather than using ground-based height differences or imagery. It’s not a leveling technique, not a method for settling boundary disputes, and not a photogrammetry technique. OPUS is commonly used to quickly establish or verify precise positions by tying a point to a stable geodetic reference frame through GNSS processing.