STANDARD ATMOSPHERE Meaning and
Definition
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The term "standard atmosphere" refers to a unit of pressure equal to 101.325 kilopascals (kPa) or 1,013.25 hectopascals (hPa) that is universally recognized as a standard reference for atmospheric pressure at sea level. It is denoted by the symbol "atm". The standard atmosphere is primarily used as a benchmark for measuring and comparing various atmospheric conditions, as well as for scientific calculations and engineering applications related to air pressure.
The standard atmosphere is defined under certain assumptions regarding atmospheric conditions, including a specific temperature, humidity, and density profile. It assumes a temperature of 15 degrees Celsius and a relative humidity of 0%. Additionally, it assumes a steady decrease in temperature with increasing altitude, following a lapse rate of 6.5 degrees Celsius per kilometer. These assumptions allow for consistent comparisons and standardized calculations across different locations and altitudes.
This unit of pressure is widely used in fields such as aviation, meteorology, and engineering. It provides a common reference point for determining air pressure differentials, aircraft performance, and the behavior of gases at standard conditions. The standard atmosphere allows for precise measurements, making it a valuable tool for atmospheric studies, weather forecasting, and the design and calibration of scientific instruments.
It is important to note that the actual atmospheric conditions can vary significantly from the standard atmosphere due to natural factors, such as weather patterns, and geographical and seasonal variations.
Common Misspellings for STANDARD ATMOSPHERE
- atandard atmosphere
- ztandard atmosphere
- xtandard atmosphere
- dtandard atmosphere
- etandard atmosphere
- wtandard atmosphere
- srandard atmosphere
- sfandard atmosphere
- sgandard atmosphere
- syandard atmosphere
- s6andard atmosphere
- s5andard atmosphere
- stzndard atmosphere
- stsndard atmosphere
- stwndard atmosphere
- stqndard atmosphere
- stabdard atmosphere
- stamdard atmosphere
- stajdard atmosphere
Etymology of STANDARD ATMOSPHERE
The word "standard" in "standard atmosphere" comes from the Old French word "estandart", meaning "a common rule or measure". It entered Middle English as "standard" in the 12th century, which referred to an object or measure that is recognized and agreed upon as a basis of comparison.
The term "atmosphere" has a different origin. It comes from the Greek word "atmos", meaning "vapor" or "vaporous air". The suffix "-sphere" is derived from the Greek word "sphaira", meaning "globe" or "ball".
So, when combined, "standard atmosphere" refers to a commonly agreed-upon measure or rule used to define the properties and characteristics of the Earth's gaseous envelope or air.
Similar spelling words for STANDARD ATMOSPHERE
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