Before revision: & Beckers, J.M., 2011: Introduction to Geophysical Fluid Dynamics, Academic Press, Waltman, p. 275 For f = 1×10−4 s−1 appropriate to 45° latitude, g = 9.81 m/s^2 and D = 4 km, LR ≈ 2000 km; using the same latitud and gravity but changing D to 40 m; LR ≈ 200 km.
After revision: & Beckers, J.M., 2011: Introduction to Geophysical Fluid Dynamics, Academic Press, Waltman, p. 275 For f = 1×10−4 s−1 appropriate to 45° latitudee, g = 9.81 m/s^2 and D = 4 km, LR ≈ 2000 km; using the same latitud and gravity but changing D to 40 m; LR ≈ 200 km.