Yes, clouds can reflect incoming radiation. The amount of solar radiation that is filtered by clouds depends on the type of cloud, its thickness, and its altitude. In general, clouds can reflect up to 70% of incoming solar radiation.

• Cirrus clouds: These are thin, wispy clouds that are composed of ice crystals. They can reflect up to 80% of incoming solar radiation.📷Opens in a new window📷en.wikipedia.orgCirrus clouds
• Stratus clouds: These are low-level clouds that are composed of water droplets. They can reflect up to 50% of incoming solar radiation.📷Opens in a new window📷sciencenotes.orgStratus clouds
• Cumulus clouds: These are puffy, white clouds that are composed of both water droplets and ice crystals. They can reflect up to 70% of incoming solar radiation.📷Opens in a new window📷wikipedia.orgCumulus clouds

The amount of solar radiation that is filtered by clouds also depends on the time of day and the angle of the sun. When the sun is low in the sky, its rays have to travel through more of the atmosphere, which means that they are more likely to be reflected by clouds. Additionally, clouds are more likely to reflect sunlight when they are thin and wispy.

Clouds play an important role in regulating Earth's climate. By reflecting incoming solar radiation, they help to cool the planet. However, clouds can also trap heat from the Earth's surface, which can lead to warming. The effect of clouds on Earth's climate is complex and not fully understood.

Dr Murtadha Shukur thank you for your contribution to the discussion

Yes, low, thick clouds primarily reflect solar radiation and cool the surface of the Earth. High, thin clouds primarily transmit incoming solar radiation; at the same time, they trap some of the outgoing infrared radiation emitted by the Earth and radiate it back downward, thereby warming the surface of the Earth. Because a cloud usually has a higher albedo than the surface beneath it, the cloud reflects more shortwave radiation back to space than the surface would in the absence of the cloud, thus leaving less solar energy available to heat the surface and atmosphere. Low clouds can block light from the sun, which means less solar energy. However, certain cloudy conditions can actually increase the amount of light reaching solar panels. About 29 percent of the solar energy that arrives at the top of the atmosphere is reflected back to space by clouds, atmospheric particles, or bright ground surfaces like sea ice and snow. This energy plays no role in Earth's climate system. 22 percent of solar radiation is filtered by clouds and may cause sunburn on cloudy days. The UV Index is directly proportional to the intensity of radiation one will receive during a particular time of the day and year. Clouds can block up to 70-90% of these UV-B rays during times of extreme overcast. If, however, the forecast presents itself as “partly cloudy,” the situation is entirely different. On average, some of the solar radiation is absorbed in the atmosphere and some part is scattered back. Nearly 20% of the radiation is absorbed by the clouds and 30% is reflected back in the space, so the amount of radiation reaching the land and oceans on the earth's surface is just 50%.