densityAltitude: Calculate Density Altitude

In peconeto/safetydata: Aviation Safety Analytical Tools

Description

Function to calculate density altitude using meteorological data available for pilots, airlines, etc. This function uses the National Weather Service estimation

Usage

densityAltitude(Altimeter_inHg = 29.92, Temp_C = 15, DewPoint_C = 0)

Arguments

Altimeter_inHg	Local altimeter setting measured as inches of mercury, defaults to 29.92 (ICAO standard atmosphere)
Temp_C	Local outside air temperature in degrees Celcius, defaults to 15 (ICAO standard temperature)
DewPoint_C	Local dew point in degrees Celcius, defaults to 0

Value

Density altitude in feet

Source

National Weather Service / National Oceanic and Atmospheric Administration Density Altitude https://www.weather.gov/media/epz/wxcalc/densityAltitude.pdf Temperature Conversion http://www.weather.gov/media/epz/wxcalc/tempConvert.pdf Pressure Conversion http://www.weather.gov/media/epz/wxcalc/pressureConversion.pdf

Examples

densityAltitude() # Default density altitude is nearly 0 ft
densityAltitude(Altimeter_inHg = 29.50) # Density altitude increases as pressure decreases
densityAltitude(Temp_C = 30) # Density altitude increases with temperature
densityAltitude(DewPoint_C = 15) # Density altitude increases with the dew point when temperature is held constant since moist air is less dense than dry air

peconeto/safetydata documentation built on May 24, 2019, 6:14 a.m.