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this is because in the day the surface of the earth will absorb a lot of heat
the atmosphere reflects some of the sunlight during the day
at night the opposite would happen
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Hello buddy!
Earth's atmosphere traps heat from the Sun and keeps it near the surface, warming the planet and sustaining life on Earth. The atmosphere lets some of the Sun’s radiation in, but it doesn’t let all of it return. Visible sunlight passes through our transparent atmosphere to warm the land and oceans, and some of this heat is re-radiated in infrared form. The longer infrared rays are less energetic than visible ones and do not slice through the atmosphere as easily as visible light. The warming by heat-trapping gases in the air is popularly known as the “greenhouse effect” whose influence is actually a matter of ‘life and death’.
Water vapour plays a more important role in keeping the Earth warm than the other gases in the atmosphere, contributing to more than 50% of the Earth’s greenhouse warming. The greenhouse effect keeps the average surface temperature of the planet at around 15°C. If this effect was absent, the average surface temperature would drop to below zero - like -20°C; with the result, all water on Earth would freeze, the oceans would turn into ice - and life on earth as we know it, would not exist. In fact, the Earth's temperature would be comparable to that of Mars which has a very thin atmosphere.
The daytime temperature may not be very high because most of the radiation will be reflected - the Earth's albedo being three times that of the Moon. Without the presence of an atmosphere, no heat or energy will be trapped, and no heat can be transferred through convective processes.
Earth's atmosphere traps heat from the Sun and keeps it near the surface, warming the planet and sustaining life on Earth. The atmosphere lets some of the Sun’s radiation in, but it doesn’t let all of it return. Visible sunlight passes through our transparent atmosphere to warm the land and oceans, and some of this heat is re-radiated in infrared form. The longer infrared rays are less energetic than visible ones and do not slice through the atmosphere as easily as visible light. The warming by heat-trapping gases in the air is popularly known as the “greenhouse effect” whose influence is actually a matter of ‘life and death’.
Water vapour plays a more important role in keeping the Earth warm than the other gases in the atmosphere, contributing to more than 50% of the Earth’s greenhouse warming. The greenhouse effect keeps the average surface temperature of the planet at around 15°C. If this effect was absent, the average surface temperature would drop to below zero - like -20°C; with the result, all water on Earth would freeze, the oceans would turn into ice - and life on earth as we know it, would not exist. In fact, the Earth's temperature would be comparable to that of Mars which has a very thin atmosphere.
The daytime temperature may not be very high because most of the radiation will be reflected - the Earth's albedo being three times that of the Moon. Without the presence of an atmosphere, no heat or energy will be trapped, and no heat can be transferred through convective processes.
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