Geophysics

2202 Submissions

[2] viXra:2202.0117 [pdf] submitted on 2022-02-18 20:49:53

Note on the Plane Oblique Mercator Representation

Authors: Abdelmajid Ben Hadj Salem
Comments: 6 Pages. In French

In this paper about the oblique Mercator representation, we present the calculation of the geographical coordinates $(\Phi,\Lm)$ images of the coordinates $(\fii,\lm)$ of a point on the sphere. We have added some exercises.
Category: Geophysics

[1] viXra:2202.0086 [pdf] submitted on 2022-02-13 13:46:24

Note on Laborde Plane Representation Used In Madagascar

Authors: Abdelmajid Ben Hadj Salem
Comments: 33 Pages. In French.

In this first paper, we present the plane representation of Laborde applied to Madagascar. We come back to the formulas and the mathematical details from the source document namely fascicle n°4 of the "Treaty of Projections of Geographical Maps, for the Use of Cartographers and Geodesists ", published in 1926, by L. Driencourt and J. Laborde. We have used modern language for certain old expressions cited in the source document.
Category: Geophysics