Why is there more solar radiation at the equator?
Due to the tilt of the Earth the Equator is closer to the sun so receives more of its energy. The Equator has a smaller surface area so heats up quickly compared to the poles. There is less atmosphere to pass through at the Equator compared to the poles.
Why do places near the equator receive maximum insolation?
Explanation: Regions near the Equator of the Earth receives direct ray of sunlight. This makes the climate of these regions hot and humid. The insolation (incoming solar radiation) rate is very high because sunlight almost falls at perpendicularly.
Is solar radiation highest at the equator?
The Sun's rays strike Earth's surface most directly at the equator.
Why does the equator receive less insolation?
Equator receives comparatively less insolation than the tropics due to presence of clouds. Generally, at the same latitude the insolation is more over the continent than over the oceans because more clouds over the oceans reflect sun rays back into space.
Where is solar radiation the strongest?
The Northern Hemisphere receives the maximum intensity of the sun's rays, while the angle of sunlight decreases in the Southern Hemisphere.
Which part of earth receives the greatest intensity of solar radiation?
The Northern Hemisphere receives the maximum intensity of the sun's rays, while the angle of sunlight decreases in the Southern Hemisphere.
Why is insolation lower at higher latitudes?
At higher latitudes, the angle of solar radiation is smaller, causing energy to be spread over a larger area of the surface and cooler temperatures.
Is the sun more intense closer to the equator?
In general, the sun's rays are the most intense at the equator and the least intense at the poles. On an average yearly basis, areas north of the Arctic Circle receive only about 40 percent as much solar radiation as equatorial regions.
Why is the sun stronger in the Southern Hemisphere?
The Southern Hemisphere simply has more sunlight to reflect! The winter solstice is the longest day of the year in the Southern Hemisphere. This means it experiences more sunlight on this day than any other. In fact, in parts of Antarctica, there is no nighttime at all during this part of the season!
Does the equator receive more or less direct light than the poles?
Because the Earth is nearly round, the equator receives direct light, and the poles receive slanted light, with a gradation in between. Due to the differential heating of the Earth's surface (unequal heating of all regions), it is always warmer at the equator than at the poles.
What is the average solar radiation intensity at the equator?
At the Equator, daily insolation varies from about 380 W/m2 to about 430 W/m2 and there are two maximums—each near the time of an equinox, when the Sun is directly overhead at noon. At the solstice, insolation is lower because the Sun's path is lower in the sky (Figure 2.9).
Why does the amount of insolation decreases from the equator towards the pole?
Ans. Insolation is the incoming solar energy intercepted(received) by the earth. Sunlight falls almost vertically on the Equator whereas it falls at some angles or little on the poles. Due to this, the amount of insolation decreases from the equator to the poles.
Why is less insolation received at the equator in June than in March or September?
Why is less insolation received at the equator in June than in March or September? The daylight period is longest at the equator in June. Winds blow insolation away from the equator in June.
Where is solar radiation most intense?
In general, the sun's rays are the most intense at the equator and the least intense at the poles. On an average yearly basis, areas north of the Arctic Circle receive only about 40 percent as much solar radiation as equatorial regions.
Why does the amount of heat reduce as we go from the equator to the North Pole or South Pole?
Places in the temperate zone receive slanting rays of the Sun and less heat, while the frigid zone is very cold as it receive extremely slanting rays of the Sun. Hence, the amount of heat received in the areas of North Pole or South Pole is lesser than areas located in the Equator.
Why is the part of the ocean near the equator receive more heat than the other parts?
Areas near the equator receive more direct solar radiation than areas near the poles. However, these areas do not constantly get warmer and warmer, because the ocean currents and winds transport the heat from the lower latitudes near the equator to higher latitudes near the poles.
What is the maximum solar radiation?
The maximum radiation intensity of the solar spectrum occurs at 500 nm, towards the blue end of the visible range. The complete spectrum comprises the ultraviolet (UV), visible (Vis) and infrared (IR) wavelengths. However, these wavelength ranges need to be sub-divided depending on the individual application fields.
What causes the intensity and duration of solar radiation received at any place to vary throughout?
Why does solar radiation change throughout the year for a particular place? Because of the tilt of the axis and the way that the sun hits the earth as the earth rotates and revolves around the sun.
Why the amount of insolation at the poles and the equator is different?
As you can see above, because of the curve of the Earth a sunbeam of Insolation hitting the Earth at higher latitudes has to spread out over a larger surface area than one reaching the Equator. Thus lowering the amount of Insolation per km2 in more Northerly and Southerly latitudes.
Why the amount of insulation at poles and the equator is different?
The average amount of insolation at the poles is less than at the equator due to the angle of incidence of incoming solar radiation, which is the consequence of the angle of inclination of Earth, and angle of reflection of incoming solar radiation.
Why is less insolation received at the equator?
Q. Despite Sun being overhead throughout the year at the equator, it receives comparatively less insolation than tropics. This is because1. Heavy cloudiness due to continuous evaporation that reduces the amount of insolation.
Why the temperature decreases as we go away from the equator?
The hottest temperatures on Earth are found near the equator. This is because the sun shines directly on it for more hours during the year than anywhere else. As you move further away from the equator towards the poles, less sun is received during the year and the temperature becomes colder. Was this answer helpful?
Why does the equator receive maximum heat as compared to the poles?
Because the sun's rays hit the earth's surface at a higher angle at the equator.
Why do places far from the equator absorb less amount of the heat from the sun?
Near the equator, the Sun's rays strike the Earth most directly, while at the poles the rays strike at a steep angle. This means that less solar radiation is absorbed per square cm (or inch) of surface area at higher latitudes than at lower latitudes, and that the tropics are warmer than the poles.
What are the two types of solar time?
Solar time is a calculation of the passage of time based on the position of the Sun in the sky. The fundamental unit of solar time is the day, based on the synodic rotation period. Two types of solar times are apparent solar time and mean solar time.
Which two bands of solar radiation are majority in the total solar radiation?
Which two bands of solar radiation are majority in the total solar radiation reaching earth? Explanation: Infrared and UV are the major components of the total solar radiation reaching earth. Infrared radiation makes up 49.4% and visible light makes up 42.3%.
What causes the intensity and duration of solar radiation received at any place to vary throughout the year that is what causes the seasons quizlet?
The seasons occur because Earth's axis is inclined and remains parallel with itself during the revolution of Earth about the Sun. The result is that the intensity and duration of sunlight, and hence atmospheric heating, varies throughout the year at any particular place.
What are the reasons for variation in solar radiation reaching the Earth than received at the outside of the atmosphere?
Solar radiation at the Earth's surface varies from the solar radiation incident on the Earth's atmosphere. Cloud cover, air pollution, latitude of a location, and the time of the year can all cause variations in solar radiance at the Earth's surface.
Why is the average amount of insolation at the poles less than the equator?
As you can see above, because of the curve of the Earth a sunbeam of Insolation hitting the Earth at higher latitudes has to spread out over a larger surface area than one reaching the Equator. Thus lowering the amount of Insolation per km2 in more Northerly and Southerly latitudes.
Why does the amount of insolation decreases from equator to poles?
Ans. Insolation is the incoming solar energy intercepted(received) by the earth. Sunlight falls almost vertically on the Equator whereas it falls at some angles or little on the poles. Due to this, the amount of insolation decreases from the equator to the poles.