Why Does Insolation Vary From Place To Place?

Why are lower latitudes warmer?

Generally the ocean is warmer at lower latitudes and colder at higher latitudes.

This heat difference also causes the oceans to swirl.

Eventually the warmer water from the area near the equator moves up to the poles.

As the water moves North or South it gives off heat and warms the atmosphere..

What factors affect insolation?

Factors Influencing InsolationSolar constant.The angle of incidence of the sun’s rays.Duration of the day.Earth Distance from Sun.Transparency of the atmosphere.

What is the relationship between angle of insolation and latitude?

1. The intensity of insolation increases, as the angle of insolation gets closer to 90 degrees. 2. The intensity of insolation decreases with an increase in latitude.

How do the angle and intensity of insolation change as latitude increases?

What receives more direct sunlight the equator or the poles? the angle of insolation increases. Intensity increases. … Indirect Relationship: As latitude increases the Angle of Insolation decreases.

What is the angle of insolation?

The angle of insolation is the angle at which the sun’s rays strike a particular location on Earth. When the north end of the Earth’s axis points toward the sun, the Northern Hemisphere experiences summer.

What is Earth’s main source of energy?

Solar radiation is the fundamental energy driving our climate system, and nearly all climatic and biologic processes on Earth are dependent on solar input. Energy from the sun is essential for many processes on Earth including warming of the surface, evaporation, photosynthesis and atmospheric circulation.

At what time of year is the duration of insolation the least?

In the northern hemisphere, the greatest angles of insolation are received on June 21, but the hottest average temperature is not reached until late July or early August. In winter minimal insolation occurs on December 21, but the lowest average temperatures don’t occur until late January or early February.

Where on earth is the maximum insolation?

The sun is closest to the earth in January (winter in the northern hemisphere), so that the maximum solar insolation received in the southern hemisphere is greater than that received in the northern hemisphere. At the equinoxes, solar insolation is at a maximum at the equator and is zero at the poles.

What are the four main factors that affect insolation?

Although many factors combine to influence weather, the four main ones are solar radiation, the amount of which changes with Earth’s tilt, orbital distance from the sun and latitude, temperature, air pressure and the abundance of water.

What three factors affect the angle of insolation?

As the angle of insolation decreases, the energy of the rays is spread out over a larger area, so the energy per unit area decreases. The three major factors which affect the angle of insolation are: Latitude, Seasons, and Time of day.

At what time of year is the duration of insolation the greatest?

The Northern Hemisphere receives its maximum amount of Insolation between March and September, and for the Southern Hemisphere it is between September and March. There are times of the year when Polar Regions receive no Insolation at all.

What latitude gets the most direct sun on March 21st?

23.5 degrees north latitudeAfter the vernal equinox, the most direct rays of the sun striking the earth continue to migrate north. On June 21/22, the most direct rays of the sun fall on locations situated at 23.5 degrees north latitude.

How is the angle of insolation different at different locations on Earth?

The angle of incoming solar radiation influences seasonal temperatures of locations at different latitudes. When the sun’s rays strike Earth’s surface near the equator, the incoming solar radiation is more direct (nearly perpendicular or closer to a 90˚ angle).

How does the angle of insolation affect the seasons?

The angle of insolation changes throughout the year because Earth’s tilt stays the same as Earth orbits the Sun. When the Earth is near its perihelion, it is winter in the Northern Hemisphere and summer in the Southern Hemisphere. … The seasons are marked by four days in Earth’s orbit around the Sun.