Georgia Climate

Question 1

solar altitude

Answer 1

describes the angle of the sun 90 degrees or less above the horizon

Question 2

solar azimuth

Answer 2

describes which direction the sun is, relating to east and west

Question 3

solar zenith angle (solar elevation)

Answer 3

defines how high the sun is measured from directly overhead to the center of the sun (zenith = 90 degrees - the altitude)

Question 4

How does tree shading reduce cooling energy use inside a building?

Answer 4

shading windows reduces direct solar radiation; shading walls, windows, and roofs keeps them cooler thereby reducing heat that reaches the interior; and shade keeps soil around building cool which can then act as heat sink for house.

Question 5

In what two ways do trees affect urban climates and building energy use?

Answer 5

Direct and Indirect. Direct effects benefit a single building. Indirect effects benefit an entire neighborhood or city.

Question 6

What hardiness zones are found in GA

Answer 6

6 a&b, 7 a&b, 8 a&b, and 9a

Question 7

When is the best time to plant shrubs and trees?

Answer 7

In the early fall, when soils are still warm and plants can become better established before the heat of summer.