Terrestrial mapping is the process of creating maps of the Earth's surface using data collected from the ground. This can be done using a variety of techniques, including surveying, photogrammetry, and remote sensing.
Surveying is the traditional method of terrestrial mapping, in which a surveyor measures distances and angles between points on the ground using instruments such as a total station or GPS receiver. These measurements are then used to create a map of the area being surveyed.
Photogrammetry is a technique that involves using aerial or satellite imagery to create maps. By analyzing the images, it is possible to extract information about the shape and elevation of the ground surface.
Remote sensing is the process of collecting data about the Earth's surface using sensors on aircraft or satellites. This can include the use of sensors that measure visible, infrared, or microwave radiation to gather information about the Earth's surface. The data collected by these sensors can be used to create maps or to study the Earth's surface in greater detail.
Terrestrial mapping is important for a variety of applications, including navigation, land use planning, resource management, and disaster response. It allows us to understand the features and characteristics of the land surface, and can be used to identify patterns and trends over time.
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