Across Channel Momentum Balance

1. h1 z LNM h2 y Across Channel Momentum Balance Geostrophic balance (frictionless, steady and linear motion) in the lower layer

2. h h1 LNM h2 z y Geostrophic Balance in the upper layer Geostrophic Balance in the lower layer:

3. h h1 LNM h2 z y Margules’ Relation

4. Effects of the Earth’s Rotation

6. Observed slope: 2m in 10 km 2 / 104 = 2 x 10-4 f = 8.8e-5 u1 = 0.08 u2 = -0.025 rho1 = 1020 rho2 = 1024

8. Could you draw the pressure field (isobars) associated with these salinity (density) fields? u1 = 0.10 m/s u2 = -0.05 m/s ρ1 = 1017 kg/m3 ρ2 = 1022 kg/m3 f = 8.8 e-5 s-1 Observed = 2 m in 8 km = 2.5 x 10-4 u1 = 0.08 m/s u2 = -0.06 m/s ρ1 = 1021 kg/m3 ρ2 = 1023 kg/m3 f = 8.8 e-5 s-1 Observed = 7 m in 8 km = 8.8 x 10-4

10. L Generally, the outflow modified by rotation will be restricted by the internal radius of deformation R, derived from geostrophy: Scaling: Internal Radius of Deformation or Internal Rossby Radius

11. Estrecho de Magallanes Seno Ballena Ejemplo Efectos de Rotación Seno Ballena

12. Seno Ballena Estrecho de Magallanes

13. Flujo Promedio rojo – flujo hacia afuera azul – flujo hacia adentro Depth (m) Dic 2003 Dic 2004

16. Framework established: Along estuary: pressure gradient balanced by friction Across estuary: geostrophic balance

17. S0