.
Daily Temperature Cycle
Primary control is Earth's
As sun angle increases through the morning, intensity increases, peaking at
and gradually decreasing through the afternoon.
Overnight, the atmosphere and the surface cools as they radiate away
Minimum temp occurs about
when the sun begins to
heat the ground again.
Maximum temperature occurs
and not typically at
.
O
.
noon.
o Highest temperature does not generally coincide with maximum solar
heating (at the noon peak sun angle)
Irregularities in the temperature cycle are caused by...
.
Annual Temperature Cycle

Irregularities in the temperature cycle are caused by the difference in angle of the sun. The angle of the sun is directly related to the intensity of the solar radiation. If the angle of the sun is at 90 degree so the intensity of the solar radiation is at maximum which leads to high temperature while on the other hand, at the sunset and at the sun rise the angle is lower than 90 degree which leads to lower intensity of the sun and also lower in temperature.