Temperature Measurement Thermometer. Air Temperature Data Daily Mean Daily Range Monthly Mean Annual Mean Annual Range Normal.

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Presentation transcript:

Temperature Measurement Thermometer

Air Temperature Data Daily Mean Daily Range Monthly Mean Annual Mean Annual Range Normal

Salt Lake City Temperatures 2004 – Observed, Normals, Records Temp. time series: temp at one place over time

What Controls Temperatures at a Particular Location? Latitude Altitude Nearby water (especially oceans) Ocean currents Position relative to prevaling winds Mountains isolate water effects Cloud cover (and albedo)

Latitude

Sun Angles at Different Latitudes

Altitude Guayaquil: sealevel Quito: 9200 ft

Hidden Peak, Snowbird Alt = 11,000’ High = 32 o F North Provo Alt = 4600’ High = 47 o F

Monthly average high & low temps for Sacramento (red) and San Francisco (black) California Oceans (water) Moderate Temps of Coastal AreasSacramento San Francisco

Coasts and prevailing wind direction

Ocean Currents

Geographic Position Mountains

Fog in Salt Lake Valley

Effects of Inversion & Cloud Cover in SLC Area 1/20 – 1/27/05 Alta Base 8800’ 47 o F Highs Olympus Cove 5600’ 29 – 32 o F Highs Sugarhouse 4400’ 32 – 33 o F Highs

Cloud Cover

World Distribution of Temperatures Annual Range (highest monthly ave. minus lowest monthly ave.)

World Distribution of Temperatures January Means

World Distribution of Temperatures July Means

Daily Variations in Air Temperature

Maximum & Minimum Thermometers

Thermograph

Temperature Scales

Wind-Chill Factor

Chapter 3 END

Land & Water

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