A clear sky is most simply called a cloudless sky.
Understanding "Clear Sky"
The term "clear sky" implies the absence of clouds, haze, and fog. As described in one source, a cloudless sky offers a bright and clear view, often associated with blue skies and the promise of fair weather. The absence of cloud cover also means there is no rain or precipitation.
Several sources illustrate the use of "clear sky" in various contexts:
- Meteorological Context: A meteorological model, McClear, is specifically designed to estimate solar radiation under clear-sky conditions. This highlights the importance of clear skies in understanding solar energy. https://amt.copernicus.org/articles/6/2403/2013/
- Everyday Language: The phrase is commonly used in everyday conversation to describe a day with no cloud cover, such as "We had a beautiful clear sky for the picnic."
- Artistic Representation: Artworks like Hokusai's "South Wind, Clear Sky" depict clear skies as a prominent feature of the landscape. https://www.metmuseum.org/art/collection/search/36490
- Aviation: While pilots don't typically use the phrase "clear blue sky," they do use CAVOK (Ceiling And Visibility OK) to indicate excellent weather conditions. https://www.quora.com/What-do-pilots-call-a-clear-blue-sky
Different terms may be used depending on the context, emphasizing specific aspects of the clear sky. For example, "cloudless" directly addresses the lack of clouds, while "bright and clear" emphasizes the visibility and luminosity.
