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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Dip and the refractive invariant
From: Marcel Tschudin
Date: 2013 Apr 20, 13:45 +0300
From: Marcel Tschudin
Date: 2013 Apr 20, 13:45 +0300
Thank you, Paul, for this very detailed derivation of dip as a function of dn. Yes, indeed excellent! When analysing measured dips it could be interesting to describe dn further as a function of a temperature gradient and compare then the temperature gradient resulting from the observed dip with environmental data of the observation. Marcel P.S: For Standard Atmosphere properties I prefer this calculator http://www.aerospaceweb.org/design/scripts/atmosphere/
