Entry: N units
stable
URI: http://codes.wmo.int/wmdr/unit/N_units
Unit of atmospheric refractivity, the refractivity, N, is related to the refractive index, n, by the formula N=1E6(n1). N is therefore dimensionless but values computed by the formula are by convention described as being in 'N units'
Definition
description 
Unit of atmospheric refractivity, the refractivity, N, is related to the refractive index, n, by the formula N=1E6(n1). N is therefore dimensionless but values computed by the formula are by convention described as being in 'N units'

label 
N units

notation 
N_units

type 
Concept
