What are the research objects and tasks of surveying? What are the research objects and tasks of surveying?

1. Surveying is a science that studies the shape and size of the earth and determines the ground position. It is a science and technology that studies the collection, processing, management, updating and utilization of information related to geographical spatial distribution on the whole earth and various natural and man-made objects on its surface and outer space.

2. The task of surveying is to collect, process, manage, update and utilize the information related to the geographical and spatial distribution of the earth's surface features. At present, surveying and mapping contains a wide range of branches, mainly including engineering survey, geodesy, geographic information and engineering, photogrammetry and remote sensing, GPS global positioning and so on.