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Define the term 'reference ellipsoid' in the context of mapping and coordinate systems.

Define the term 'reference ellipsoid' in the context of mapping and coordinate systems.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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3 (a) (i) Define the term 'reference ellipsoid' in the context of mapping and coordinate systems. (ii) Explain why a single point on the earth's surface can have multiple latitude and longitude coordinates. (b) To translate a 3D Earth onto a flat map, a map projection must be applied. One type of projection is a cylindrical projection. (i) Draw a diagram to demonstrate what is meant by a cylindrical transformation, and indicate the line or point of tangency. The UK's Ordnance Survey maps are based on a transverse Mercator projection. (ii) What is meant by 'transverse'? (iii) Describe a key disadvantage of the Mercator projection and a modification that enables this to be addressed. (c) Identify two features of GIIS mapping software that make it a useful tool for the planning and development of renewable energy projects, and provide a brief explanation of why these features are useful.
Transcribed Image Text:3 (a) (i) Define the term 'reference ellipsoid' in the context of mapping and coordinate systems. (ii) Explain why a single point on the earth's surface can have multiple latitude and longitude coordinates. (b) To translate a 3D Earth onto a flat map, a map projection must be applied. One type of projection is a cylindrical projection. (i) Draw a diagram to demonstrate what is meant by a cylindrical transformation, and indicate the line or point of tangency. The UK's Ordnance Survey maps are based on a transverse Mercator projection. (ii) What is meant by 'transverse'? (iii) Describe a key disadvantage of the Mercator projection and a modification that enables this to be addressed. (c) Identify two features of GIIS mapping software that make it a useful tool for the planning and development of renewable energy projects, and provide a brief explanation of why these features are useful.
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