What is meant by "remote sensing" in geodesy?

Remote sensing in geodesy refers to the acquisition of information about an object or area from a distance, typically using satellites or other aerial platforms. This technology allows for the collection of data without direct contact with the target, enabling detailed observations over large areas.

In geodesy, remote sensing plays a crucial role in gathering data regarding Earth's surface, including topography, vegetation, land use, and changes over time. By utilizing satellite imagery and sensors, geodetic engineers can assess geophysical properties, monitor environmental changes, and create accurate geographical models.

While direct measurements of land surfaces and the analysis of soil samples are important in geodesy, they do not encompass the remote aspect that defines remote sensing. Similarly, cartography pertains to the art and science of map-making but does not specifically address the techniques used for obtaining data from a distance. Thus, option C is the correct choice as it encapsulates the essence of remote sensing within the field of geodesy.