Glossary Of Measurements - Kestrel Drop Getting Started

DP
DP
WB
WB
The lowest temperature in the ambient
Wet Bulb:
atmosphere yielded by evaporating water from a wet
muslin-covered bulb of a thermometer.
Absolute/Station Pressure: HI
of the weight of air above the measurement point. Often
called station pressure.
DP
D
D
Density Altitude:
WB
DT
standard reference atmosphere for the measured temperature,
relative humidity and air pressure. A measure used primarily by
pilots, high-performance engine mechanics and long-range
DT
shooters.
B
HI
Heat Stress Index:
temperature in relation to the relative humidity, used as
B
an indicator of the perceived temperature.
D
HR
DP
DT
Relative Humidity:
WB
vapor in the air at a specific temperature to the maximum
amount that the air could hold at that temperature,
expressed as a percentage. Relative humidity is a function
B
HI
of temperature and therefore changes as the temperature
changes, even if the amount of moisture in the air remains
HI
constant.
DP
DP
The temperature at which the water vapor in
Dewpoint:
D
the atmosphere begins to condense. Any further cooling
causes condensation (fog and dew). This is also the
WB WB
temperature of saturation at which the dry-bulb, wet-bulb
DT
and dew-point temperatures are all the same.
B
9

Glossary of Measurements

The actual measured pressure
The equivalent altitude in the ICAO
A measurement of the air
The ratio of the amount of water
Temperature (Air/Water/Snow):
the ambient temperature of the air and water vapor as
measured by a thermometer or other measuring device
in which the thermal element is dry and shielded from
radiation. Water and snow temperature are measured with
a measuring device in direct contact with the environment.
Available units are Fahrenheit – a temperature scale where
water at sea level has a freezing point of +32° F°, and a
boiling point of +212° F; and Celsius – a temperature scale
where water at sea level has a freezing point of 0° C and a
HI
boiling point of +100° C.
DP
WB
D
HR
DT
B
Please visit www.nkhome.com/kestrel/DROP for more information.
Air temperature is
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