What Is the Purpose of Topography?
The word “Topography” hails from ancient Rome and means the surveying of the physique and features of the planet’s surface. As such it also concerns the description of these figures and characteristics – in particular via the use of maps.
The intent of Topography is so that the position of any point can be specified in terms of altitude, latitude & longitude. Being able to do this is crucial when constructing, planning and engineering and in the main anything relating to civil engineering.
Hence, it’s essential that before any structure project is began that a topographic survey is carried out waiting to supply main members of the project, such as architects, developers and authorities with the data they require to take key decisions.
Almost all topographic surveys will offer this information in the shape of a highly accurate 2D or 3D land drawing.
There are a number of ways a Topographic Survey can be followed out:
Direct Survey/Surveying: will accurately set the position of points and the distances and angles between them by employing tools such as theodolites, dumpy levels and clinometers.
Remote Sensing: The data is amassed from a distance.
Satellite: aerial images are utilized.
Photogrammetry: measuring of points is established by two or more pictures caught from various positions.
Radar / Sonar: Particularly practiced when mapping the sea floor.
