GEOG 2050 Chapter : Chapter 4 Pt 3
Document Summary
Key concepts: latitude energy imbalance, global net radiation balance, daily rotation budget, microclimate, urban climate, net radiation (net = after deductions, from economics) Figure 4. 12: tropics, more direct insolation, consistent day length, little seasonality, energy gain in tropics and subtropics, polar regions, sun low, high albedo, up to six months with no insolation. Microclimatology: the study of physical conditions on the earth"s surface, microclimates- local climates differs from surrounding area, few feet to miles, costal/marine areas, urban areas. Daily radiation curves (figure 4. 23: hottest part of the day is about 3pm, coolest part of the day is early in the morning. In water, sun"s rays can penetrate up to 130 feet. Surface energy budget- soil (figure 4. 14: sensible heat transfer through conduction, <1m- length at which energy exchange becomes negligible. Simplified surface energy balance (figure 4. 15: net radiation (net r), +sw (insolation, sw (reflection, +lw (infrared, lw (infrared, varied with day length, seasons, cloudiness and latitude.
