GEOG 1112 Chapter Notes - Chapter 5: Barometer, Mercury-In-Glass Thermometer, Weather Vane

• School: University of Georgia
• Department: Geography
• Course: GEOG 1112
• Professor: John Knox

Document Summary

Direct methods or in situ (in place) measure the properties of the air that are in contact with the instrument being used. Indirect methods or remote sensing obtain information without coming into physical contact with the region of the atmosphere being measured. Automated surface observing system (asos) a combination of electronic sensors; Usa"s primary surface weather observing network; measures cloud height, visibility, precipitation, pressure, temperature, dew point, wind direction and speed and rainfall accumulation. Asos cannot measure patchy fog, tornadoes, volcanic ash, cloud type, snow depth and smoke. The station model and the metogram (a chart of one or more weather variables at a given location over a given period of time) are ways to graphically depict observation of the atmosphere to make them more understandable. Utc (universal temps coordonn ) ve hours ahead of local time. Liquid- lled and metallic thermometers measure temperature by measuring how much the liquid and metal expand or contract when heated or cooled.