According to the invention, a climate-related, or to be precise, a temperature-related correction of the altitude reading is carried out on an altimeter. In doing this, the measurement of altitude is based on an average reference temperature value at sea level and on an average air pressure reference...http://www.google.ca/patents/US20060106559?utm_source=gb-gplus-sharePatent US20060106559 - Altimeter having temperature correction
