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EESA09H3 (202)
Lecture

Lecture 1

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Department
Environmental Science
Course Code
EESA09H3
Professor
Tanzina Mohsin

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Lecture 1: Introduction to Wind
Why Study Wind?
Human mythology
Destructiveness- tornadoes, hurricanes
Climatic importance- wind chill, local cooling and heating, Chinooks
oChinooks- mountain winds
Power source- wind power
Hurricanes are not dangerous until it hits the land
Atmospheric Primer:
The history of wind
Earth is 4.6 billion years old
Wind mythology
oGreeks (Euro-centric
oAeolus designated by Zeus to look after the 4 winds
Zephyrus- gentle, west wind
Boreas- chilly, north wind
Notos- southern rain bringer
Eurus- ill-tempered east breeze
oChinese mythology- Feng Po Po (wind goddess)
oJapanese
oNorth American Indian- wind connected to spiritual life, can smell wind
Cultural Winds
oCulturally wind has been used as a metaphor, often representing change, often seen in
movies
Participation #1
Identify a movie
Identify the metaphoric role wind plays in the movie
History of Winds
Geological Control
Wind appear 4.6 billion years
Atmospheric not static, is dynamic (changing
Early earth
oAtmospheric composition largely the results of volcanic emissions (geological control)- CO2,
CH4
oLife appears 3.8 billion years ago
2.3 billion years of methane, CO2 atmosphere
oAnaerobic conditions age of bacteria
Abrupt change 2.3 billion years ago
Biologic Control
2.3 bya, biological control
Switch from anaerobic conditions to aerobic conditions 2.3 billion years ago because
Gaia Hypothesis
Solar output gradually increased and strong GHG started to increase, warming the planet
Oxygen dominated life and planet started to cool down
Anthropogenic Control
After oxygen appears on Earth, plants began to have life
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Description
Lecture 1: Introduction to Wind Why Study Wind? Human mythology Destructiveness- tornadoes, hurricanes Climatic importance- wind chill, local cooling and heating, Chinooks o Chinooks- mountain winds Power source- wind power Hurricanes are not dangerous until it hits the land Atmospheric Primer: The history of wind Earth is 4.6 billion years old Wind mythology o Greeks (Euro-centric o Aeolus designated by Zeus to look after the 4 winds Zephyrus- gentle, west wind Boreas- chilly, north wind Notos- southern rain bringer Eurus- ill-tempered east breeze o Chinese mythology- Feng Po Po (wind goddess) o Japanese o North American Indian- wind connected to spiritual life, can smell wind Cultural Winds o Culturally wind has been used as a metaphor, often representing change, often seen in
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