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In the petroleum industry, cloud point refers to the temperature below which paraffin wax in diesel or biowax in biodiesels forms a cloudy appearance. The presence of solidified waxes thickens the oil and clogs fuel filters and injectors in engines. [1] The wax also accumulates on cold surfaces (producing, for example, pipeline or heat ...
Weather. Cloud physics is the study of the physical processes that lead to the formation, growth and precipitation of atmospheric clouds. These aerosols are found in the troposphere, stratosphere, and mesosphere, which collectively make up the greatest part of the homosphere. Clouds consist of microscopic droplets of liquid water (warm clouds ...
A point of presence (PoP) is an artificial demarcation point or network interface point between communicating entities. A common example is an ISP point of presence, the local access point that allows users to connect to the Internet with their Internet service provider (ISP). [1] A PoP typically houses servers, routers, network switches ...
Several factors influence cloud formation, including atmospheric temperature, humidity, and the presence of aerosols. Cloud types are classified based on their appearance and altitude, with major categories including cirrus, cumulus, and stratus. Understanding these processes is fundamental to studying weather patterns and climate dynamics.
Cloud feedback is a type of climate change feedback, where the overall cloud frequency, height, and the relative fraction of the different types of clouds are altered due to climate change, and these changes then affect the Earth's energy balance. [1]: 2224 On their own, clouds are already an important part of the climate system, as they ...
Troposphere. A picture of Earth's troposphere with its different cloud types of low to high altitudes casting shadows. Sunlight is reflected off the ocean, after it was filtered into a reddish light by passing through much of the troposphere at sunset. The above lying stratosphere can be seen at the horizon as a band of its characteristic glow ...
A typical raindrop is about 2 mm in diameter, a typical cloud droplet is on the order of 0.02 mm, and a typical cloud condensation nucleus is on the order of 0.0001 mm or 0.1 μm or greater in diameter. [1] The number of cloud condensation nuclei in the air can be measured at ranges between around 100 to 1000 per cm 3. [1]
Saturn's hexagon. A partial view of Saturn's north pole, 2016. Saturn's hexagon is a persistent approximately hexagonal cloud pattern around the north pole of the planet Saturn, located at about 78°N. [1][2][3] The sides of the hexagon are about 14,500 km (9,000 mi) long, [4][5][6][7] which is about 2,000 km (1,200 mi) longer than the diameter ...