Atmospheric Physics and Standard Atmosphere Quiz Review

Vocabulary and concept flashcards covering atmospheric properties, pressure, temperature profiles, lapse rates, and standard atmosphere values.

Density Altitude at $100000\,\text{Pa}$

The density altitude measured from sea level conditions when the altimeter reads exactly $100000\,\text{Pa}$, which is $364\,\text{ft}$.

Air Pressure at $1000\,\text{ft}\text{ ASL}$

The standard atmospheric pressure at an altitude of $1000\,\text{ft}$ above sea level, equal to $97.73\,\text{kPa}$.

Temperature Lapse Trend

The relationship in the lower atmosphere where ambient temperature decreases as altitude increases.

First Isothermal Layer Upper Bound

The upper boundary of the first isothermal layer in the atmosphere measured from sea level, located at an altitude of $25\,\text{km}$.

Lapse Rate at $82{,}020.99\,\text{ft}$

The temperature lapse rate at an altitude of $82{,}020.99\,\text{ft}$, which is equal to $3 \times 10^{-3}\,\text{K/m}$.

Stratosphere

The layer of Earth's atmosphere where commercial passenger aircraft most commonly cruise.

Atmospheric Heights at $2.65 \times 10^4\,\text{Pa}$ and $220\,\text{K}$

The respective altitudes corresponding to a given pressure of $2.65 \times 10^4\,\text{Pa}$ and a temperature of $220\,\text{K}$, evaluating to $9.97\,\text{km}$ and $9.85\,\text{km}$.

Standard Sea-Level Pressure ($\text{lb/ft}^2$)

The standard atmospheric pressure at sea level expressed in imperial units of pounds per square foot, which equals $2116.8\,\text{lb/ft}^2$.

Temperature Effect on Density Altitude

The operational condition where having an ambient temperature higher than standard at a given pressure altitude causes the density altitude to increase.

Stratospheric Pressure Variation ($11\text{--}25\,\text{km}$)

The mathematical function describing pressure change within the $11\text{--}25\,\text{km}$ isothermal region of the stratosphere, characterized by an exponential decrease.