Figure 1. Terrain contours of the Carland Cross site Figure 2. Carland Cross: SPL at (a) 100m and (b) 250m distance from the source (line TB-A, Figure 3. Carland Cross: variation in the overall SPL with distance (line TB-A) Figure 4. Tammhausen: excess attenuation at 530m distance for downwind propagation, showing effects of (a) refraction and (b) turbulence Figure 5. The terrain of the Toplou site Figure 6. Toplou: excess attenuation between points (a) XI and X2 and (b) X3 and 34, showing effect of turbulence Figure 7. Toplou: (a) eigenray diagram and (b) excess attenuation between 7 and X8, showing effect of refraction Figure 8. Lyse: excess attenuation at (a) point I and (b) point 2, showing effect of turbulence Figure 9. Medicine Bow: prediction of TL with distance using (a) eigenray tracing and (b) numerical cell averaging Figure 10. Terrain contours of the Kalivari site Figure 11. Kalivari: eigenray diagrams for (a) W/T 6—-point P1, (b) W/T 3—point P3 and (c) W/T 7—-point P2
