Due to a failure to operate properly in cold conditions I'm returning my Kestrel 4500 to NK to be serviced or replaced.
In the mean time I would like to be able to calculate actual DA when I'm out shooting. My Suunto Core watch supplies me with absolute pressure and I have an old school thermometer for temperature.
I have successfully used this online calculator to calculate DA, but I would like to know how to calculate this manually as there are times when cellphone reception are absent leaving internet inaccessible.
I have found what I believe are good resources at this site but it's way over my head so I'm hoping that someone less mathematically challenged can help me create a simple formula to calculate density altitude using:
- Absolute/Station Pressure (hPa)
- Temperature (deg. Celsius)
- Relative humidity (or just use 50% as standard)
Output should be Density Altitude in meters and accuracy to the nearest 100m is more than adequate.
Thanks
Jo
In the mean time I would like to be able to calculate actual DA when I'm out shooting. My Suunto Core watch supplies me with absolute pressure and I have an old school thermometer for temperature.
I have successfully used this online calculator to calculate DA, but I would like to know how to calculate this manually as there are times when cellphone reception are absent leaving internet inaccessible.
I have found what I believe are good resources at this site but it's way over my head so I'm hoping that someone less mathematically challenged can help me create a simple formula to calculate density altitude using:
- Absolute/Station Pressure (hPa)
- Temperature (deg. Celsius)
- Relative humidity (or just use 50% as standard)
Output should be Density Altitude in meters and accuracy to the nearest 100m is more than adequate.
Thanks
Jo