Noise mapping by use of Nord2000 – Reduction of number of meteo-classes from nine to four
Annex A. Illustration of D/R
The parameter D/R has been calculated as a function of propagation distance D in the range 20 to 1000 m for the nine significant meteo-classes in the Danish statistics. For each meteo-class the result is shown below. Each figure shows with a solid thick line D/R calculated for the actual meteo-class while the lower and upper range of the four propagation classes M1-M4 defined in Table 1 are indicated by dashed lines.
Version 1.0 March 2007, © Danish Environmental Protection Agency