Fig. 4From: On the determination of the atmospheric outer scale length of turbulence using GPS phase difference observations: the Seewinkel networkThe figure is adapted from Kermarrec and Schön (2014)GNSS signal path through the turbulent troposphere using the concept of isotropic eddies in the boundary layer and anisotropic two-dimensional structure in the free atmosphere. t1 and t2 are two epochs of measurements.Back to article page