Cloud computing Wikipedia

Terrestrial clouds can be found throughout most of the homosphere, which includes the troposphere, stratosphere, and mesosphere. Meteorologica was based on intuition and simple observation, but not on what is now considered the scientific method. Around 340 BC, Greek philosopher Aristotle wrote Meteorologica, a work which represented the sum of knowledge of the time about natural science, including weather and climate. The table that follows is very broad in scope like the cloud genera template upon which it is partly based. Over time, the metaphoric usage of the word supplanted the Old English weolcan, which had been the literal term for clouds in general.

Opacity-based varieties are not applied to high clouds because they are always translucent, or in the case of cirrus spissatus, always opaque. Tufted clouds of the more detached floccus species are subdivisions of genus-types which may be cirriform or stratocumuliform in overall structure. Castellanus resembles the turrets of a castle when viewed from the side, and can be found with stratocumuliform genera at any tropospheric altitude level and with limited-convective patches of high-level cirrus. This results in the formation of embedded cumuliform buildups arising from a common stratiform base. The species castellanus appears when a mostly stable stratocumuliform or cirriform layer becomes disturbed by localized areas of airmass instability, usually in the morning or afternoon.

They are most commonly seen as orographic mountain-wave clouds, but can occur anywhere in the troposphere where there is strong wind shear combined with sufficient airmass stability to maintain a generally flat cloud structure. Genus types are commonly divided into subtypes called species that indicate specific structural details which can vary according to the stability and windshear characteristics of the atmosphere at any given time and location. Classification in the troposphere is based on a hierarchy of categories with physical forms and altitude levels at the top. However, water vapor that has been lifted to the top of troposphere can be carried even higher by gravity waves where further condensation can result in the formation of clouds in the stratosphere and mesosphere.

Adding moisture to the air

A cumulonimbus incus cloud top is one that has spread out into a clear anvil shape as a result of rising air currents hitting the stability layer at the tropopause where the air no longer continues to get colder with increasing altitude. Virga is a feature seen with clouds producing precipitation that evaporates before reaching the ground, these being of the genera cirrocumulus, altocumulus, altostratus, nimbostratus, stratocumulus, cumulus, and cumulonimbus. Another variety, duplicatus (closely spaced layers of the same type, one above the other), is sometimes found with cirrus of both the fibratus and uncinus species, and with altocumulus and stratocumulus of the species stratiformis and lenticularis.

• First and foremost, they are the source of precipitation, thereby greatly influencing the distribution and amount of precipitation.
• No embedded cumuliform types have been identified, but broken stratocumuliform wave formations are sometimes seen in the top layer that reveal more continuous layer clouds underneath.
• According to a McKinsey & Company report, cloud cost-optimization levers and value-oriented business use cases foresee more than $1 trillion in run-rate EBITDA across Fortune 500 companies as up for grabs in 2030.
• In the stratosphere and mesosphere, clouds also have common names for their main types.
• However, an increasing frequency of occurrence of noctilucent clouds since the 19th century may be the result of climate change.
• In this model, the cloud user patches and maintains the operating systems and the application software.

Characteristics

However, these companies also use cloud services selectively for certain workloads and applications where it aligns with their operational needs. Additionally, companies with ultra-low latency requirements, such as high-frequency trading (HFT) firms, rely on custom hardware (e.g., FPGAs) and physical proximity to exchanges, which most cloud providers cannot fully replicate despite recent advancements. Advanced redundancy strategies, such as cross-region replication or failover systems, typically require explicit configuration and may incur https://alcitynews.com/unlock-digital-freedom-with-hide-expert-vpn-your-ultimate-privacy-solution.html additional costs or licensing fees. Cloud providers offer various redundancy options for core services, such as managed storage and managed databases, though redundancy configurations often vary by service tier.

Clouds in the troposphere assume five physical forms based on structure and process of formation. As a result, only a https://californianetdaily.com/cqr-company-offers-cloud-pentest-on-the-most-favorable-terms/ portion of the potential cost savings of cloud computing is achieved. Hybrid cloud adoption depends on a number of factors such as data security and compliance requirements, level of control needed over data, and the applications an organization uses. The applications are accessible from various client devices through either a thin client interface, such as a web browser (e.g., web-based email), or a program interface.

Clouds formed by any of these lifting agents are initially seen in the troposphere where these agents are most active. Frontal and cyclonic lift occur in the troposphere when stable air is forced aloft at weather fronts and around centers of low pressure by a process called convergence. Low level airmass instability allows for the formation of cumuliform clouds in the troposphere that can produce showers if the air is sufficiently moist. Within these layers of the atmosphere, air can become saturated as a result of being cooled to its dew point or by having moisture added from an adjacent source.