Angle of Insolation and Seasons Complete the sentence. The angle of insolation is the angle at which ________________hits the surface of the Earth. A 90 degree angle of insolation would cause ______temperatures because

Angle of Insolation Connections Does the angle at which insolation strikes have an affect on the areas’ temperature?

Angle of Insolation Connections Figure :  Annual variations in day length for locations at the equator, 30, 50, 60, and 70° North latitude 1.When do the longest days occur? 2.When do the shortest days occur? 3.Describe the relationship between the angle of insolation and the number of daylight hours? 4.Using the graph, infer about the number of daylight hours for both March and September Equinox?

Angle of Insolation Figure :Monthly values of available insolation in Wm-2 for the equator, 30, 60, and 90° North. 5. Use your “Temperatures Around the World” data to list places that are at the various latitudes. 6. Describe in detail the relationship between the angle of insolation, and the amount of insolation absorbed on the surface area that receives it, and average temperatures.

Calculating the INTENSITY OF INSOLATION We can also model the effect the angle of incidence has on insolation intensity with the following simple equation: Intensity = SIN (A) SIN 80 = 0.98 or 98% SIN 70 = 0.94 or 94% SIN 60 = 0.87 or 87% SIN 50 = 0.77 or 77% SIN 40 = 0.64 or 64% SIN 30 = 0.50 or 50% SIN 20 = 0.34 or 34% SIN 10 = 0.17 or 17%

Making Sense of it all…. 7. Using the labs conducted, the data graphed, and your knowledge of the angle of insolation and its affect on surface temperatures, describe the following: Why does the North Pole experience months at a time of days with 24 hrs of daylight and some month with zero daylight hours? Why is the intensity of insolation at the equator fluctuating about the same year round?