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23.


The following radar impact assessment first addresses the radar Line of Sight (LoS) and then examines the Probability of Detection (Pd) of the various turbines in light of the known technical characteristics of the radar.


16.4 East Anglia THREE Location 24.


The relative location of the East Anglia THREE site to the radars under consideration is shown at Diagram 1. The East Anglia THREE site has a total footprint of 305km2.


NATS Cromer Radar MOD Trimingham Radar


East Anglia THREE Boundary


Diagram 1 East Anglia THREE site and PSR in context 25.


The East Anglia THREE site lies within the coverage areas of both radars under consideration.


16.5 MOD Trimingham Radar 26.


27.


The closest point of the East Anglia THREE site is 50.21NM (92.99km) from the Trimingham PSR.


There is no intervening terrain to provide any screening of the East Anglia THREE site; however, earth curvature provides significant screening of the East Anglia THREE site. The absence of terrain screening means that the edge of radar cover follows an arc.


16.5.1 Radar Line of Sight 28.


Initial assessments carried out established the radar Line of Sight (LoS) to various turbine heights across the East Anglia THREE site. These are reproduced in the following diagrams. Radar LoS is indicated by the magenta shading.


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Appendix 0 Example Page 6


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