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GGR101H1 Lecture Notes - Complex System, Carbon Cycle, Canadian Shield

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School
UTSG
Department
Geography and Planning
Course
GGR101H1
Professor
Tony Davis

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Document Summary

Environment covers all of ambient influence in the physical, biological and human world: physical environment includes characteristics of. Biosphere constrained by elements of physical environment & interactions. Atmosphere composed of nitrogen (78%) & oxygen (20%: produces greenhouse effect b/c of small concentrations of co2, ch4, etc, without greenhouse effect: -50 degrees c (not completely man-made phenomenon) Addition of co2 due to natural and human activity. Substantially; climate changed due to proportions of greenhouse gases. Hydrosphere: unique in solar system: water exists as a solid, liquid or gas (readily exchanges between states) energy exchanges accompany changes in state (evaporation & condensation & precipitation) More land above water than there has been in a long time. Changes in the amount of water on the earth = shape and size of the oceans varies. Huge role in climate change intersection between hydrosphere & atmosphere (energy exchanges occur) As long as the earth has had a crust (~3. 5 billion years)

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Related Questions

Venus has a higher average surface temperature than mercury why

1) There is less absorption of sunlight on Mercury because of the lack of atmospheric gases.

2) The high percentage of carbon dioxide in the atmosphere of Venus causes a greenhouse effect.

3) The longer time required for Venus to revolve around the Sun allows it to absorb more heat from the Sun.

4) The Sun's rays are less direct on Mercury because it is closer to the Sun.

The effects of global climate change are magnified in mountainside environments because

Consider a slab of copper which has a thickness of 25 cm and anarea of
90 cm2 which separates two environments with differenttemperatures.
Initially environment A has a temperature of 125oC and environmentB
has a temperature of 10oC.
(Thermal conductivity of Copper = 400 W/m K)
a. Determine the initial rate of energy transfer through theslab?
b. Sketch the temperature of environment A as a function oftime.
Only changes due to heat transfer through the slab should be
considered.
c. On the same sketch draw the temperature of environment B asa
function of time.
d. Explain the form of the sketches.