What Is Air Density And Its Effects; Air Density And Relative Air Density Display - Silva ADC Pro User Manual

14.5.0 Altimeter Mode -
relative air density
air density
ALTITUDE m
hold [reset]
AD:0.2345
AD
144
144.8
density
altitude
Air-Density Display
(Air Density)
Altimeter Mode

What is Air Density and Its Effects

ALTITUDE m
RAD: 55.78%
144
RAD
144.8
density
altitude
Air-Density Display
(Relative Air Density)
Air Density
!
Air's density depends on its temperature,
pressure and humidity.
! T h e h i g h e r t h e t e m p e r a t u r e , t h e a i r i s ,
heated, and the air's density decreases.
!
Humid air is lighter than dry air at the same
temperature and pressure, that is, the air is
humid, air's density decreases.
!
Increasing the pressure increases the airs
density. Altitude and weather can change the
airs pressure. In general, higher the altitude,
lower the air density.
Air Density and Relative Air Density
Display
!
In this display, the indicator 'ALTITUDE' and
altitude unit appear on the 1st row of the
display, and the current altitude appears on
the 3rd row of the display.
!
The air density (AD) or relative air density
(RAD) appears on the 2nd row of the display,
and the density altitude appears on the 4th
row of the display.
!
Check the 'Setting the Altimeter Mode' section
below for more detail on how to set the data
for calculating the relative humidity.