MS Excel DA Calculator
Last edited by radkon; May 24, 2007 at 07:17 AM. Reason: Made a cosmetic update to the sheet and uploaded new version
I see that the formula you used does not add the actual over sea elevation...
just that..
Last edited by radkon; May 24, 2007 at 08:39 AM. Reason: Revised the calc for base altitude
For true DA, you need the station pressure, which can be plugged in here:
http://www.srh.noaa.gov/elp/wxcalc/stationpressure.html
Then, take that and plug it in here with the air temp. and dewpoint:
http://www.srh.noaa.gov/epz/wxcalc/d...altitude.shtml
The altimeter setting is what is reported as the barometer readings on most weather sites unless it specifically shows it as station pressure. Hope this helps. Take care. Dave


