Earth systems Chapter 5

Earth systems Chapter 5 - Chapter 5: Global Temperatures I....

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Chapter 5: Global Temperatures I. Temperature Concepts & Measurements -Global temperatures has risen on average 0.17 °C(0.3°F) since 1970 -The temperature increases is accelerating -present temperatures are higher than any time during the last 125,000 years Anomaly: deviation from average The largest temperature changes are observed over the northern part of the northern hemisphere Temperature: average amount of kinetic energy in a substance A. Temperature Scales Only 1 melting point for ice but many freezing points for water Fahrenheit: 180 degrees between -32 F melting point of ice -212 F boiling point of water Celsius: 100 degrees between: -0 degrees C melting point of ice -100 degrees C boiling point of water Kelvin: 100 units between -273 K melting point of ice -373 K boiling point of water -starts from the absolute zero -uses same degree increments as the Celsius scale B. Measuring Temperature -Temperature is measured with a mercury or alcohol thermometer II. Principal Temperature Control A. Latitude (distance north or south of equator) - Affects Insolation (most important influence on temperature)
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This note was uploaded on 12/14/2011 for the course EARTH SYS 101 taught by Professor Asar during the Fall '11 term at Rutgers.

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Earth systems Chapter 5 - Chapter 5: Global Temperatures I....

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