National Weather Service Cloud Classification and Characteristics

S'COOL is now NASA GLOBE Clouds! NASA scientists are very interested in learning how clouds affect our atmosphere. It is the clouds, in part, that affect the overall temperature and energy balance of the Earth. The more we know about clouds, the more we will know about our Earth as a system. And YOU can help by sending NASA your observations! NASA S'COOL has now joined forces with the Global Learning and Observations to Benefit the Environment (GLOBE) Program creating a larger community of cloud observers across 120+ countries.