Differential GPS Surveys
Differential GPS Surveys are a correction technique that enhances the quality of location data gathered using the receivers of GPS (Global Positioning System).
Differential correction can be applied in real-time directly in the field or when postprocessing data in the office. Although both methods are based on the same underlying principles, each accesses different data sources and achieves various levels of accuracy.
In geophysical surveys, for example, geomagnetic surveys are conducted across Canada from east to west and north to south. The geomagnetic survey measurements are then compared with geomagnetic measurements obtained from a global network of satellites. The satellite measurements provide an absolute reference against which the geomagnetic survey measurements can be calibrated. This calibration process enhances the accuracy of the geomagnetic survey measurements and produces high-quality geophysical maps.
Canadian Exploration Services is a Canadian company that provides geophysical survey services in Ontario. The company uses differential GPS technology to provide accurate and precise location data for its clients' projects.