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Understanding Air Temperature Variation with Elevation and Location

Explore the impact of elevation and location on air temperature. Learn about different thermometer types, proper site selection, and the influence of elevation on temperature change. Discover seasonality, prevailing wind directions, ocean currents, air masses, and key figures in atmospheric science.

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Understanding Air Temperature Variation with Elevation and Location

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  1. Air Temperature Measurement • Thermometer Types • Liquid-in-glass • Bimetallic • Electrical • Proper Site Selection • Height above ground • Shaded • Ventilated

  2. Temperature Change with Elevation • Generally decreases with increasing elevation in the troposphere • Vertical Temperature Profile- Atmosphere • Importance of elevation of surroundings • Denver vs. State College • Denver vs. WV mountains

  3. Seasonality • Temperature difference between warm and cold season • Generally greater over land than water • Generally increases with distance from water • Heat capacity difference • Penetration of solar radiation in water • Mixing and currents in water • Evaporation of water • Cloud cover amount

  4. Prevailing Wind Direction • Blowing from water or land? • Charleston, SC vs. San Diego, CA

  5. Ocean Currents • Water temperature • Cold currents on west coasts, in general • Warm currents on east coasts, in general

  6. Air Masses • A large volume of air (thousands of miles across by several miles deep) with similar temperature and moisture characteristics throughout • Source Regions = High Pressure Areas • Air acquires attributes of underlying surface • Continental vs. Maritime (moisture) • Polar vs. Tropical (temperature)

  7. Key Figures • 3.1, 3.2, 3.10, 3.17, 3.20, 3.38

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