Module 9 insolation Flashcards
What is insolation?
Insolation is the amount of solar energy that makes contact with the surface of the Earth.
What factors affect the intensity of insolation?
The intensity of insolation varies with:
* Latitude
* Time of day
* Season
How does the type of material affect temperature?
Different materials absorb or reflect insolation differently, affecting their temperature.
What is albedo?
Albedo is the amount of light reflected by a surface.
Which surfaces have higher albedo?
Lighter surfaces have a higher albedo than darker surfaces.
What is the angle of insolation?
The angle of insolation is the angle of the Sun above the horizon.
At what angle is the Sun directly overhead?
The angle of insolation equals 90°.
How does latitude affect the angle of insolation?
Near the equator, the Sun is almost directly overhead throughout the year; at higher latitudes, the angle is less.
What is the warmest time of day typically?
The warmest time of the day is typically in the afternoon.
When is the coldest temperature typically recorded?
Just before sunrise.
What happens to the angle of insolation during the winter solstice in the Northern Hemisphere?
The angle of insolation is at its lowest point.
When is the summer solstice in the Northern Hemisphere?
June 21.
What is the temperature range for a period of twenty-four hours?
The average between the highest temperature for the day and the lowest temperature for the day.
How does ocean temperature affect coastal climate compared to inland areas?
Coastal areas have a smaller annual temperature range due to the ocean water temperature not fluctuating as much.
True or False: The duration of insolation is the same throughout the year.
False.
What is the duration of insolation at the spring and fall equinoxes?
Twelve hours.
Fill in the blank: The angle of insolation is affected by location, time of day, season, and _______.
cloud cover.
How do dark surfaces behave in terms of solar energy absorption?
Dark surfaces absorb solar energy.
What is the effect of rough surfaces compared to smooth surfaces on insolation absorption?
Rough surfaces absorb more insolation than smooth surfaces.
What happens to the duration of insolation between March 21 and June 21 in the Northern Hemisphere?
The duration of insolation increases.
What is the relationship between Earth’s tilt and seasonal temperature variations?
The tilt causes opposite angles of insolation in the Northern and Southern Hemispheres.
