GEOG 2050 : Exam 1 Notes Fall 2013
Document Summary
23. 5 degrees from the north pole to the perpendicular line to plane of ecliptic. 66. 5 north pole from the plane of ecliptic. Earth"s tilt is 23. 5 degrees relative to the perpendicular to the earth"s orbit. Earth maintains the same alignment relative to the plane of the ecliptic: pole points in the same direction relative to the stars polaris (north star) Perpendicular places on earth receive more energy from the sun"s rays. Subsolar point sun directly overhead (it moves with the seasons) On equinoxes, the sub solar point is at the equator. Fall (spring) equinox occurs sep. 22, 23 in the n. (s. ) hemisphere. Wien-planck"s law: the hotter the object, the shorer the wavelength. Blackbody radiator absorbs all energy it receives and emits that energy. Global net radiation: input output radiation (we want balance) incoming shortwave outgoing longwave. Lecture-how do we physically describe the earth: latitude and longitude.
