Coastal Kelvin Wave. Kelvin wave h=50 meters—f=10 -4 1/s.

Coastal Kelvin Wave

Kelvin wave h=50 meters—f=10-4 1/s

Kelvin wave h=500 meters—f=10-4 1/s

Kelvin wave h=50 meters—f=2x10-5 1/s

Semi-diurnal TidesIn North Sea.

Classic Kelvin Wave Problem (complicated by Corner!)

Blue– Tidal Range

Red Time of High water

El Nino/ Southern Oscillation (ENSO)

And

Equatorial Dynamics

InterTropical Convergence Zone – where the trade winds meet.

Drives Upwards motion in atmosphere– and precipitation

Moves Seasonally (locacted at maximum solar radiation– sort of)

ON averaged displaced north of equator,

Precipitation mm/month

ITCZ

Equator

SouthAmerica

Ind

onesi

a

Ekman Transport

Convergent

Divergent

Divergent

ITCZ

Equator

SouthAmerica

Ind

onesi

a

Convergent

Divergent

Divergent Low in sea level

High in sea level

Low in sea level

v

E High Low

Px

fv

Px

fv

v

Px

fv Pxfv

vPx

fv

Pxfv

Px

fv

v

Px

fv

SEC

NEC

NECC

Equatorial Under Current (also the Cromwell Current)Discovered by Fisherman and named in 1952

El Nino Impacts

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