GEOG 2050 Chapter : Chapter 5 Pt 1
Document Summary
Key terms: temperature, heat, absolute zero, celsius, fahrenheit, kelvin, mercury thermometer, alcohol thermometer, thermistor, daily mean temp, daily temp range, monthly mean temp, mean monthly temp, annual mean temp, annual temp range, sea surface temp (sst) Temperature: heat= energy of molecular movement along gradient, temperature= average kinetic energy (motion) of molecules, heat measured in calories, raise temp of 1g of water by 1 degree celsius, 1000 food calories= 1 calorie. Conversions: c to f: f=(1. 8*c)+32, k to c: c= k-273. 15, f to c: c= (f-32)/ 1. 8, c to k: c+273. 15. Measuring temperature: for outdoor readings, outdoors, white shelters, high albedo, louvered for ventilation, 1. 2 m above a grass surface, shade, daily or hourly. Temperature sensors: thermistor, electrical resistance of semi conductor, resistance changes with temp, reports electronically, thermocouples, bimetallic sensors, ac thermostats. First order weather stations: national weather service, hourly, daily summary statistics, most located at major airports, temperature and other variables.
