GG101 Chapter Notes - Chapter 6: Pressure-Gradient Force, Barometer, Weather Vane
Document Summary
Mount pinatubo in the philippines erupted in 1991, lofting 15-20 million tons of ash, dust, and sulfur dioxide into the atmosphere, which eventually spanned 42% of the globe. The debris increased the atmospheric albedo by 1. 5% Earth"s atmosphere circulation transfers both energy and mass on a grand scale determining. Earth"s patterns and the flow of ocean currents. Atmosphere is the dominant medium for redistributing energy from about 35 latitude to the poles and ocean currents dominate between 17 n and s. Atmospheric circulation has three levels: primary circulation consisting of general worldwide circulation, secondary circulation of migratory high pressure and low pressure systems, tertiary circulation that includes local winds and temporal weather patterns. Meridional flows winds moving north or south along meridians. Zonal flows winds moving east or west along parallels. Air pressure is the pressure exerted on all surfaces in contact with air. Evangelista torricelli invented the first method for measuring air pressure the mercury barometer (figure 6. 2 b)
