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Consider a section across the Gulf Stream at a latitude of 40°N, similar to the one shown here: 50'N 150 SSH 40'N 125 10
Posted: Wed Mar 09, 2022 9:18 am
by answerhappygod
- Consider A Section Across The Gulf Stream At A Latitude Of 40 N Similar To The One Shown Here 50 N 150 Ssh 40 N 125 10 1 (432.69 KiB) Viewed 74 times
Consider a section across the Gulf Stream at a latitude of 40°N, similar to the one shown here: 50'N 150 SSH 40'N 125 100 30'N 120 100 80 60 40 20 0 -20 SSH (cm) 20'N 10'N 75 50 80'W 60'W 40'W 20'W 0 SSH (cm) 25 0 -80 -75 -70 -65 -60 -55 -50 -45-40 -35 -30 -25 -20 -15 - 10 -5(kg m3) a) If the Gulf Stream (inner sharp rise in the figure above) is 100km wide, and the sea surface height (SSH) increases by lm over this, what is the slope of the SSH, i.e. dh/dx? (2p) b) Calculate the pressure gradient force -1/p dp/dx from this. (2p) c) If this was the only force, it would cause an acceleration. Calculate the acceleration and what current speeds you would get after 1 year. (2p) d) In reality, another force comes into play and creates a steady flow situation. What force is this? (10) e) What currents do you get from the above slope or pressure gradient, if you assume the Gulf Stream is in geostrophic balance ? (2p)