The phrase "low cloud" refers to a type of cloud that appears close to the ground level. It often appears in the form of a thick, gray layer, covering the sky and reducing visibility. Full definition
The amount of low cloud cover impacts the planet's temperature. (notrickszone.com)
The results show that UP, while not without its own complexity trade - offs, produces encouraging improvements in the geographic and vertical structure of low clouds in present climate. (sites.uci.edu)
The increased low cloud formation from water evaporation reflects sunlight cooling the atmosphere. (wattsupwiththat.com)