# UW ATMS 101 - Lecture Notes (5 pages)

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# Lecture Notes

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## Lecture Notes

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Problems/Exams

Pages:
5
School:
University of Washington
Course:
Atms 101 - Weather
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Name Section Homework 3 Due Tuesday April 18th Show your work Include units in numerical answers 1 A red shirt and a fire both appear red The temperature of a blackbody whose peak emission is at red wavelengths is 4150 K and both the shirt and the fire are blackbodies a Why doesn t your red shirt incinerate you b Why DOES the red shirt appear red 2 The following questions refer to the vertical structure of the atmosphere a Why does temperature increase with increasing height in the stratosphere b What do we call a region of the atmosphere where temperature increases with increasing height c Is this region considered stable or unstable to vertical motion 3 The following questions refer to earth s current orbit around the sun rotation on its axis and the tilt of earth s rotation axis from the plane defined by the Earth s orbit about the Sun a Looking down at the north pole from outer space does the earth spin clockwise or counterclockwise Without traveling to outer space or sending a satellite to outer space to watch the planet rotate how would you know this to be true b Over the course of one complete revolution around the sun does the tilt of the earth s axis of rotation change If so by how much does it change 1 c Why does summer in the Northern Hemisphere occur at a time when earth is farthest away from the sun 4 The earth s axis is currently tilted at 23 5 from the vertical but within its 41 000year cycle of obliquity the angle of the Earth s axis of rotation varies from about 22 to 24 5 If the angle of the Earth s axis of rotation increases from 23 5 to 24 5 will the quantities in a c increase decrease or remain the same a Fraction of the surface area of the earth that is illuminated by the sun at any given time b Amount of radiation incident at the top of the atmosphere at the north pole during the Northern Hemisphere summer c The annual range in temperature July average temperature minus January average temperature in Seattle d The Arctic Circle is at 66 5 N

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