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In practice, many reference ellipsoids have been developed over the centuries from different surveys. The flattening value varies slightly from one reference ellipsoid to another, reflecting local conditions and whether the reference ellipsoid is intended to model the entire Earth or only some portion of it.
There are several other terms, often used interchangeably with technical geography to subdivide the discipline, including "techniques of geographic analysis," [69] "Geographic Information Technology," [1] "Geography method's and techniques," [70] "Geographic Information Science," [71] "geoinformatics," "geomatics," and "information geography".
A surveyor's shed showing equipment used for geomatics. Geomatics is defined in the ISO/TC 211 series of standards as the "discipline concerned with the collection, distribution, storage, analysis, processing, presentation of geographic data or geographic information". [1]
The practice of engineering geology is also very closely related to the practice of geological engineering and geotechnical engineering. If there is a difference in the content of the disciplines, it mainly lies in the training or experience of the practitioner.
Geodesy or geodetics [1] is the science of measuring and representing the geometry, gravity, and spatial orientation of the Earth in temporally varying 3D.It is called planetary geodesy when studying other astronomical bodies, such as planets or circumplanetary systems. [2]
Geomatics organizations (1 C, 9 P) S. Satellite navigation systems (7 C, 6 P) Pages in category "Geomatics" The following 7 pages are in this category, out of 7 total.
Cartography and Geographic Information Society (CaGIS), promotes in the U.S. research, education, and practice to improve the understanding, creation, analysis, and use of maps and geographic information. The society serves as a forum for the exchange of original concepts, techniques, approaches, and experiences by those who design, implement ...
These conflicts can be reduced to a basic conflict between the need for more data on the map, and the need for less, with generalization as the tool for balancing them. One challenge with the information theory approach to generalization is its basis on measuring the amount of information on the map, before and after generalization procedures. [9]