Peaceful sunset

by Debbie Portwood

Title

Peaceful sunset

Artist

Debbie Portwood

Medium

Photograph - Photography

Description

Beautiful Southern Missouri sunset sky. The low sun casting light behind the summer clouds. Very peaceful scene. Wonderful for any wall in your home or office, or perhaps a greeting card. Many more wonderful works can be found in my various galleries, from photographs and photoart to digital creations and abstracts. Thanks for browsing, commenting and most of all for any purchases. Debbie Portwood :D........................................(Wikipedia - In meteorology, a cloud is a visible mass of liquid droplets or frozen crystals made of water or various chemicals suspended in the atmosphere above the surface of a planetary body. These suspended particles are also known as aerosols and are studied in the cloud physics branch of meteorology. Terrestrial cloud formation is the result of air in Earth's atmosphere becoming saturated due to either or both of two processes; cooling of the air and adding water vapor. With sufficient saturation, precipitation will fall to the surface; an exception is virga, which evaporates before reaching the surface. In Earth's atmosphere, the international cloud classification system is based on the fact that these aerosols in their most basic forms can show free-convective upward growth into heaps of cumulus, appear in non-convective layered sheets such as stratus, or take the form of thin fibrous wisps of cirrus. Prefixes are used whenever necessary to express variations or complexities in these basic forms or to specify middle or high altitude ranges. These include strato- for low cumulus layers with limited convection that show some stratus-like characteristics, cumulo- for complex highly-convective storm clouds, nimbo- for thick layers of some complexity that can produce moderate to heavy precipitation, alto- for middle, and cirro- for high clouds. Cloud types prefixed by altitude range may be of simple or moderately complex structure. Whether or not a cloud is low, middle, or high level depends on the altitude range of its base above Earth's surface. Layers or heaps with significant vertical extent can form in the low or middle altitude ranges depending on the moisture content of the air. Clouds in the troposphere, the atmospheric layer closest to Earth's surface, have Latin names due to the universal adaptation of Luke Howard's nomenclature. It was introduced in December 1802 and became the basis of the modern classification system. Synoptic surface weather observations use code numbers to record and report any type of tropospheric cloud visible at scheduled observation times based on its height and physical appearance. While a majority of clouds form in Earth's troposphere, there are occasions when they can be observed in the stratosphere and mesosphere. These three main atmospheric layers are collectively known as the homosphere. Above this lies the thermosphere and exosphere, which together make up the heterosphere that marks the transition to outer space. Clouds have been observed on other planets and moons within the Solar System, but, due to their different temperature characteristics, they are composed of other substances such as methane, ammonia, and sulfuric acid.)

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September 21st, 2011

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