This entire year, we have been learning about major aspects in weather. In order to do this, we took three cities; one in the Northern hemisphere, one in the Southern hemisphere, and one on the equator. We also measured the Duration of Insolation (Incoming Solar Radiation) or amount of day length. Duration of Insulation is what the length of sunlight, the day, is scientifically called. Duration means the length of something and insulation means sunlight. We measure the Duration of Insolation for everyday over a 3-month period.

Duration of insulation not only affects our lives but also the climates of different locations. When we studied the climates of each city we realized that there were so many ways of classifying into climate zones. This study will examine the variations in duration of insolation at different latitudes and explain the reasons. To illustrate this, I chose three cities...