GEOG 1300 Chapter Notes - Chapter 2: Ozone Layer, Lapse Rate, Cellular Respiration
30 Mar 2013
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Document Summary
Solar winds are responsible for the auroras. Seasonality refers both to the seasonal variation of the sun"s position above the horizon and changing day lengths during the year. Seasonal variation is response to the sun"s altitude (angle between the horizon and the sun). The sun"s declination is the latitude of the sub solar point. Revolution: speed with earth"s distance from the sun determines the time required for one complete orbit around the sun. Rotation: turning of the earth on its axis, reasons for day and night. Tilt of the earth"s axis: the tilt is 23. 5; this is relative to the plane of the ecliptic. A plane that touches all points of earth"s orbit. Axial parallelism: remains in fixed alignment with polaris throughout the year. Sphericity- uneven distribution of sunlight to the earth"s surface. Solstices- sun"s perpendicular (vertical rays) hit 23. 5 n or s: june solstice- summer in north, longest day of the year.
