1 / 10

Across Channel Momentum Balance

h 1. z. LNM. h 2. y. Across Channel Momentum Balance. Geostrophic balance (frictionless, steady and linear motion) in the lower layer. h. h 1. LNM. h 2. z. y. Geostrophic Balance in the upper layer. Geostrophic Balance in the lower layer:. h. h 1. LNM. h 2. z. y.

bell-lane
Download Presentation

Across Channel Momentum Balance

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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 How about ? With one can determine Margules’ Relation

  4. Effects of the Earth’s Rotation

  5. 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

  6. 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

  7. 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

More Related