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Class Notes for Earth & Planetary Sciences at McGill University

EPSC 181 Lecture Notes - Lecture 21: Radioactive Decay, Decay Chain, Mass Number

Lecture 23 Tuesday, April 10, 2018 9:45 AM Why is it windy along the coast? Temperature difference Water currents Less friction No trees, buildings, people Nuclear Radiation can be stopped by an intervening material Sheet ...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture 19: Lecture 20

Lecture 20 Thursday, March 29, 2018 10:06 AM Greenhouse gas emissions from reservoirs Methane is more potent as a greenhouse gas compared to carbon dioxide Stagnant water in tropical places will emit methane rather than CO...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture 18: Lecture 19

Lecture 19 Tuesday, March 27, 2018 10:06 AM Predicting future climates After validation, numerical experiments can be performed E.g. by increasing atmospheric 2O concentration for the new century 1. Scenarios of energy pro...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture 14: Lecture 15

Lecture 15 Thursday, March 1, 201810:07 AM Eutrophication Occurs naturally, can be accelerated by human activity Depends on Rate of sedimentation Primary productivity The rate of photosynthesis Areas with fresh water lakes...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture Notes - Lecture 20: Indium, Gallium, Solar Cell

Lecture 21 Tuesday, April 3, 20110:08 AM Efficiency Conversion efficiency: the percentage of solar energy shining on a device that is converted into electrical energy Schockley-queisser limit Limits how efficient solar pan...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture Notes - Lecture 17: Induced Seismicity, Fuel Oil, World Trade Organization

Lecture 18 Tuesday, March 20, 2018 10:09 AM Drilling technology Fewer holes are drilled and more holes are drilled through these few holes Once these holes are sealed off, high pressure fluids are injected in order to expa...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture Notes - Lecture 12: Capelin, Chlorophyll, Overfishing

Lecture 13 Thursday, February 22, 2018 10:03 AM Cod Because of the drop, Canada wanted to control the access to cod Wasnt just overfishing of the cod, but also capelin, which is the preferred prey of the cod Why arent the ...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture Notes - Lecture 13: Silicate Minerals, Energy Density, Industrial Revolution

Lecture 14 Tuesday, February 27, 2018 10:02 AM Carrying capacity For most organisms in nature, population growth rate slows to zero as population approaches a limit The industrial revolution (1760-1850) A period in which f...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture Notes - Lecture 15: Acidithiobacillus, Underground Coal Gasification, Syngas

Lecture 16 Tuesday, March 13, 2018 10:09 AM Acid mine drainage Results in yellow precipitate in streams draining out abandoned mines Pyrite oxidation As pH drops, a sulfur- and iron-oxidizing bacterium Acidithiobacillus fe...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture 11: Lecture 12

Lecture 12 Tuesday, February 20, 2018 10:06 AM The fate of precipitation Overland flow Too much water too fast to be retained Rainfall with no vegetation Flat floods Not much groundwater recharge because the water is there...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture Notes - Lecture 16: Tarmac, Western United States, Kerogen

Lecture 17 Thursday, March 15, 2018 10:08 AM Production curves Drill a hole for an oil well, it goes dry and then you drill another hole, etc The are becomes filled with holes Drilling platform depth Onshore is the cheapes...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture Notes - Lecture 1: Chemical Formula, Sulfur, Feldspar

Lecture 2 Thursday, January 11, 2018 10:08 AM https:www.chegg.comtextbooksgeology-and-the- environment-7th-edition-9781133603986-113360398x Six essential elements Hydrogen Oxygen Carbon Nitrogen Sulfur Phosphorus These ele...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture Notes - Lecture 4: Negative Feedback, Positive Feedback, The Strongest

Lecture 5 Tuesday, January 23, 2018 10:05 AM Oscillations in air-sea system In addition to instabilities, oscillations occur in the atmosphere- ocean system The strongest is known El Nio - Southern oscillation El Nio - Sou...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture Notes - Lecture 3: Ocean Current, Cool Air, 2Degrees

Lecture 4 Thursday, January 18, 2018 10:05 AM Heating vs. latitude See photo on slide 10 The equator and poles are believed to have more extreme weather than they really have There is the transport of heat by the atmospher...

Earth & Planetary Sciences
EPSC 181
All Professors
EPSC 181 Lecture Notes - Lecture 10: Experimental Lakes Area, Algal Bloom, Freshwater Ecosystem

Lecture 11 Tuesday, February 13, 2018 10:11 AM Sudden transitions and hysteresis When you add the straw that breaks the camels back The break occurs suddenly (often a surprise) Removing that straw will not heal its back (h...

Earth & Planetary Sciences
EPSC 181
All Professors

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