Saudi Arabia | Al-Musnad: Why are cloudy nights warmer than clear nights?

Weather of Arabia - Former Professor of Climate at Qassim University, Vice President of the Saudi Weather and Climate Society, Dr. Abdullah Al-Misnad, said that cloudy nights are warmer than clear nights, revealing the reason for this happening.

Al-Misnad explained, through his account on the “X” platform, that the Earth’s surface acquires heat during the day through solar radiation, and then begins to radiate this heat through long heat waves into the atmosphere. If there are clouds, they obstruct the passage of these waves into the upper atmosphere.

He added: “The clouds work to reflect the long heat waves and return them back to the surface of the Earth, which leads to an annoying rise in the surface temperature on those nights. This mechanism is similar to the work of agricultural greenhouses, and God knows best.”

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