UIUC ATMS 100 - Seasonal Daily Temperatures (3 pages)

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Seasonal Daily Temperatures

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Seasonal Daily Temperatures


Brief overiew of the earth's orbit, the seasons, the angle of the sun, seasonal temperatures, control of temperatures, and daily temperatures.

Lecture number:
Lecture Note
University of Illinois at Urbana, Champaign
Atms 100 - Introduction to Meteorology

Unformatted text preview:

Lecture 5 Outline of Last Lecture I The Electromagnetic Spectrum II Electromagnetic Waves III Radiation and Temperature IV Solar Spectrum V Radiation and Color VI Radiation Budget VII Radiation and Atmosphere VIII Greenhouse Effect IX Why is the Sky Blue Outline of Current Lecture X Earth s Orbit XI Earth s Axis XII The Seasons XIII Angle of Sun XIV Seasonal Temperature XV Controls of Temperature XVI Daily High Temperatures XVII Nocturnal Cooling XVIII The Role of Clouds Current Lecture XIX Earth s Orbit a Earth orbits around the sun i orbit is an ellipse slightly egg shaped ATMS 100 1st Edition ii closest to the sun on January 3rd perihelion iii farthest from sun on July 4th b Year 365 242 days c Day 24 hours d southern hemisphere always has opposite season XX a b c XXI a b c Earth s Axis Earth Orbits the sun while tilted on its axis i tilt is 23 5 degrees and is constant throughout the year axial tilt changes intensity length of sunlight everywhere on earth throughout the year if no tilt sun would always be overhead at Equator i solar radiation intensity same every day The Seasons summer occurs when a hemisphere is tilted toward the sun i more intense sunlight over longer hours yields warm temperatures winter occurs when a hemisphere is tilted away from the sun i less intense sunlight over shorter hours yields cold temperatures spring fall These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute hemispheres transition from being tilted toward sun to tilted away from the sun Angle of Sun sunlight more intense when directed perpendicular to surface summer i more direct sunlight on hemisphere winter i less direct sunlight on hemisphere Seasonal Temperature seasonality i average temperature change between summer and winter Controls of Temperature Latitude i greater seasonal temperature change near Poles lesser in Tropics Altitude i colder temperatures at higher elevations

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