Geophysics

2407 Submissions

[2] viXra:2407.0114 [pdf] replaced on 2025-12-18 00:49:35

Note on The Passage From (X, Y, Z) Coordinates to (varphi,lambda, he) Coordinates-v2-

Authors: Abdelmajid Ben Hadj Salem
Comments: 8 Pages. In French. Some formulas are corrected.

In this note, we present another method of passing from geocentric coordinates (X,Y,Z) to geodetic coordinates (varphi,lambda,he) with respect to an ellipsoid of revolution with parameters (a, e) where a and e are the semi-major axis and the first eccentricity, respectively. Some formulas of the first version are corrected.
Category: Geophysics

[1] viXra:2407.0111 [pdf] submitted on 2024-07-19 00:02:52

Elements of Geodesy in Mauritania and Introduction to GPS

Authors: Abdelmajid Ben Hadj Salem
Comments: 28 Pages. In French

In this paper, we give in the part I some elements of geodesy and the geodetic systems used in Mauritania. The part II contains an introduction to GPS.
Category: Geophysics