Облачность
The experimental results allowed meaningful modeling of the seasonal heat budget processes occurring through the Arctic Ocean sea ice and atmosphere. The scope of the model was the column from below the ice pack through the top of the atmosphere. The scientists realized that key to the model was correctly characterizing the changing reflectivity or albedo of the ice surface, owing to changes in snow pack and ice melting. Cloud cover was key to describing how much energy reached or escaped the ocean surface.