Pierre Antoine Ernest Tardi (4 June 1897 – 5 August 1972) was a French geophysicist, astronomer, and geographer.
Following the war, in 1920, he joined the geodesy section of the Service géographique de l'armée.
[5] One notable milestone during has geodetic career was at the 1936 International Union of Geodesy and Geophysics meeting, where, in an effort to standardize mapping of the region, he suggested an idea to split the continent of Africa into a grid system.
[7] In 1946, Tardi was made the president of the International Association of Geodesy, succeeding George Perrier.
[a][8] In 1952, Tardi served on the inaugural advisory committee of Ohio State University's Institute of Geodesy, Photogrammetry and Cartography, along with other geodesists such as Walter Davis Lambert.