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Water, Gradients and the Sun (Week/Day 4)

by: Monica Weisenbach

Water, Gradients and the Sun (Week/Day 4) GEOLOGY103

Marketplace > Geoscience > GEOLOGY103 > Water Gradients and the Sun Week Day 4
Monica Weisenbach
GPA 3.819
Intro Oceanography
Peter Panish

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Hi! These are the notes for Week or Day 4 of Intro to Oceanography 103! It covers properties of water, various ocean gradients and some information about the sun cycle. I got an A in this class las...
Intro Oceanography
Peter Panish
Class Notes
Umass Amherst, UMass, Oceanography, intro to oceanography, 103
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This 3 page Class Notes was uploaded by Monica Weisenbach on Friday February 20, 2015. The Class Notes belongs to GEOLOGY103 at a university taught by Peter Panish in Fall. Since its upload, it has received 205 views.

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Date Created: 02/20/15
Week 4 Water 80 calg needed to melt ice when ice hits 0 C 80 calg is required to go past that When water is frozen it releases 80 calg this is the latent heat of fusion 540 calg needed to vaporize water so at 100 C it takes 540 calg to to go past When water is condensed it releases 540 calg this is the latent heat of vaponza on water 1 C Otherwise it takes 100 cal to raise water from 0 to 100 or 1 calg to raise one g of It takes 05 calg needed to raise 1 g of ice by 1 C Ocean Gradients gt C l lOOOm Jefth a Polar Temperate Thermoclines 39000quot Tropics The surface waters are warmer than the deeper waters The permanent thermocline starts from the base of the surface layer anywhere from 50100m and goes to about 1000m in depth so about 1001000m The surface layer has a seasonal thermocline the base of the summer layer is 050m and the base of the winter layer is 50100m Most of the nutrients in the ocean come from upwellings colder water the water overturns mixesupwells better in springfallwinter The polar regions do not have a thermocline it is cold enough to have no real temperature difference Pycnocline is the layers of densities in the ocean more or less a reversed graph of the thermocline 36 Sa39iniha 5 l P Iar ropics 44m Polar Temperate Halocline Pycnochnes 1 arm Tropics Halocline is the measure of salinity through the ocean layers ct density 1000 gcm3 x 1000 sigma tee and it s a measure of density For temperatures in the ocean 040 C the colder the water the slower the sound For the range of pressures in the ocean 1 1100 atmospheres the greater the pressure the faster the sound The SOFAR Sound Fixing and Pressure Temp Ranging zone is a channel near the bottom of the thermocline where there Mlxed is minimal sound interface Speed of sound Thermodi 19 Sounds In the SOFAR tend to stay In the SOFAR 1000m in the tropics Cold shallower in the temperate zones near Deep the surface in the polar regions VVater Solar HeatingSeasons Note that the sun s rays stretch the farther NorthSouth one gets so there s less solar energy per unit area aka the solar footprint The tropics have a net solar gain while the temperatepolar regions have a net solar loss gt the heat radiates out from the tropics through wind and currents Earth has an axial tilt of 235 which points to the North Star Earth s orbit is slightly elliptical Jan 4 Perihelion is the time when the Sun is closest to the Sun July 6 Aphelion is the time when the Sun is furthest to the Sun A greater tilt means more extreme seasons and no tilt no seasons The further from the equator the more uneven the day gets the equator gets 12 hours of daynight The atmosphereocean have equal duties in moving heat away from the equator This happens through the ocean currents and water cycle evaporation locks up heat which is released in the rain


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