(*) The ratio of the grid convergence angle to the longitude difference. In the Lambert Conical Orthomorphic projection, this ratio is constant for all charts based on the same two standard parallels. See also convergence; grid convergence.
GRID CONVERGENCE FACTOR
Meaning of GRID CONVERGENCE FACTOR in English
DOD English dictionary of military terms. Английский словарь военных терминов DOD. 2012