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Geog 104 Weather, Climate, and Society

by: Noah Sorrell

Geog 104 Weather, Climate, and Society GEOG 104

Marketplace > Southern Illinois University Carbondale > Geology > GEOG 104 > Geog 104 Weather Climate and Society
Noah Sorrell

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About this Document

These notes cover Unit one of Weather, Climate, and Society. Focusing on weather variables, barometric pressure, weather station models, air temperature, humidity, dew point, and wind.
Weather, Climate, and Society
Trent Ford
Class Notes
weather, climate, Society, temperature, air, humidity, relative
25 ?




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This 2 page Class Notes was uploaded by Noah Sorrell on Monday March 21, 2016. The Class Notes belongs to GEOG 104 at Southern Illinois University Carbondale taught by Trent Ford in Spring 2016. Since its upload, it has received 27 views. For similar materials see Weather, Climate, and Society in Geology at Southern Illinois University Carbondale.


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Date Created: 03/21/16
Weather Climate and Society Weather Variables:  Barometric pressure  Air temperature  Dew point temperature  Humidity  Wind Direction  Precipitation  Cloud Cover Barometric Pressure:  Gravitational effect on mass of air  Expressed as millibars (mb, or 1kg/cm^2)  Measured using barometer  Standard sea level pressure is 1013.2 millibars or kilopascal (kPa)  Higher elevation >> less air on top o Denver is a Mile higher than sea level Weather Station Model: Air Temperature Air temperature Is expressed as Kelvin (K) or degrees Celcius Humidity Mixing ratio > mass of water vapor relative to mas of other gasses (g/kg) Saturation mixing ratio > mass of water in air when air is saturation (Can not hold anymore water). Relative humidity > RH = Mixing ratio/Sat. Mixing ratio Dew Point Temperature:  When the air is saturated  Temperature in which the air cant cool anymore Wind Speed:  Measured with an anemometer, expressed in m/s or mph o Classified by the beaufort scale o Wind above 75mph is a hurricane Wind Direction:  Expressed in degrees of a circle or cardinal direction  Southernly winds are coming from the south to the north Precipitation:  Water released from the clouds in the form of rain, sleet, snow, or hail o Expressed as mm/hr or cm/hr Precipitation Gauges  Simple rain gauge, digital gauge, tipping bucket gauge, climate reference network gauge Cloud Cover  The fraction of the sky obscured by clouds depends on the optical depth (thickness).  Measured in otkas or the nearest 1.8 cover


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