Ключевые слова: abstract, air, atmosphere, azure, background, beautiful, beauty, blue, blue sky, bright, clear, climate, cloud, cloudiness, cloudscape, cloudy, color, covered, cumuli, cumulonimbus, cumulus, day, environment, environmental, fluffy, front, heaven, heavens, high, image, landscape, layer, light, meteorology, moisture, natural, nature, nebulosity, nimbi, nobody, only, outdoor, overcast, ozone, photo, precipitation, rainclouds, scenic, season, seasonal, sky, skylight, softness, sparse, spring, stratosphere, summer, sun, sunlight, sunny, sunshine, view, weather, white,