Mixed cylindric map projections of the ellipsoid of revolution

Grafarend, Erik W.; Syffus, Rainer

doi:10.1007/s001900050136

Cited by 17 publications

(4 citation statements)

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Section: Introductionmentioning

confidence: 99%

“…Grafarend and Syffus [4] generalized the aforementioned cylindrical map projections to the ellipsoid of revolution. The generalized equal area cylindrical map projection of Grafarend and Syffus [4] is well suited for global applications. Here, in contrast to [4], within our map projection system we are presenting an equal area cylindrical map projection of an ellipsoid of revolution, which can be established at any point, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…The generalized equal area cylindrical map projection of Grafarend and Syffus [4] is well suited for global applications. Here, in contrast to [4], within our map projection system we are presenting an equal area cylindrical map projection of an ellipsoid of revolution, which can be established at any point, i.e. the origin of the map projection system can be placed at any point of interest.…”

Section: Introductionmentioning

confidence: 99%

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New Cylindrical Equal Area and Conformal Map Projections of the Reference Ellipsoid for Local Applications

Safari¹,

Ardalan²

2007

Survey Review

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Two new cylindrical map projections of the reference ellipsoid have been developed. The first cylindrical map projection possesses the property of preserving the areas of ellipsoidal surfaces. In other words, it is an "equal area cylindrical map projection of the reference ellipsoid". The origin of this map projection system can be placed at any point on the surface of the reference ellipsoid and as such the map projection could be ideal for localized applications, where minimum distortion is required. This map projection is recommended for implementation in Land Information Systems and/or cadastres, where the area of the land has to be preserved on the mapping surface. The second cylindrical map projection is conformal but, like the first map projection has the property that its origin can be placed at the point of interest. This property, which is common in both map projection systems, makes it possible that the centre of the map projection system be placed at the middle of geographical area of interest to minimize the distortion at that specific area. Besides, since the map projections have been developed for the reference ellipsoid it is possible to directly transfer the GPS coordinates into the mapping surface, which adds to the practical applications of the two map projections systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New Cylindrical Equal Area and Conformal Map Projections of the Reference Ellipsoid for Local Applications

Safari¹,

Ardalan²

2007

Survey Review

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“…For more details about ltering in physical geodesy the reader is referred to E.W. Grafarend (1982), H. Moritz (1980), R.…”

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confidence: 99%

Multiscale signal-to-noise thresholding

Freeden¹,

Michel²,

Stenger³

2001

Acta Geodaetica et Geophysica Hungarica

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The basic idea behind selective m ultiscale reconstruction of functions from error{a ected data is outlined on the sphere. The selective reconstruction mechanism is based on the premise that multiscale approximation can be well{represented in terms of only a relatively small number of expansion coe cients at various resolution levels. An attempt is made within a tree algorithm (pyramid scheme) to remove the noise component from each scale coe cient using a priori statistical information (provided by an error covariance kernel of a Gaussian, stationary stochastic model).

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