Seascape, Landscape and Visual Baseline Technical Report
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Environmental Statement European Offshore Wind Deployment July 2011 Centre European Offshore Wind Deployment Centre Environmental Statement Appendix 19.1: Seascape, Landscape and Visual Baseline Technical Report European Offshore Wind Deployment Centre Seascape, Landscape and Visual Impact Assessment Baseline Technical Report 21st June 2011 A Worton Rectory Park Oxford OX29 4SX United Kingdom T +44 (0) 1865 887050 F +44 (0) 1865 887055 W www.lda-design.co.uk LDA Design Consulting LLP Registered No: OC307725 17 Minster Precincts, Peterborough PE1 1XX 2875_Baseline Contents 1.0 Introduction ............................................................................................................................................................... 4 1.1. The Proposed Development ...................................................................................................................... 4 1.2. The Study Area ............................................................................................................................................... 4 1.3. Methodology Consultation ....................................................................................................................... 5 1.4. Key Guidance Documents ......................................................................................................................... 6 1.5. Data Information and Sources ................................................................................................................. 6 2.0 Landscape and Seascape Policy Context ......................................................................................................... 7 2.1. Renewable Energy ......................................................................................................................................... 7 2.2. Landscape Designations ............................................................................................................................. 7 2.3. Historic Environment .................................................................................................................................. 9 2.4. Summary of Landscape Designations and Planning Context ...................................................... 9 3.0 Baseline Description ............................................................................................................................................. 10 3.1. Overview of the Wider Study Area ....................................................................................................... 10 3.2. National Seascape Units ........................................................................................................................... 10 3.3. Regional Seascape Units ........................................................................................................................... 11 3.4. Landscape Character .................................................................................................................................. 15 3.5. Aberdeen LCA ............................................................................................................................................... 19 4.0 Meteorological Context ....................................................................................................................................... 25 5.0 Baseline Visual Environment............................................................................................................................ 26 5.1. Zone of Theoretical Visibility ................................................................................................................. 26 5.2. Key Visual Receptors .................................................................................................................................. 26 5.3. Viewpoint Description .............................................................................................................................. 27 6.0 Summary ................................................................................................................................................................... 35 7.0 Appendices ............................................................................................................................................................... 36 Appendix 1. Consultation Record .................................................................................... 36 Appendix 2. SLVIA Methodology ..................................................................................... 39 Appendix 3. Meteorological Data ..................................................................................... 50 Appendix 4. ZTV and Visuals Methodology................................................................. 51 8.0 References ................................................................................................................................................................. 53 2875_Baseline Version: 1.4 Version date: 21st June 2011 Comment FINAL This document has been prepared and checked in accordance with ISO 9001:2000. 2875_Baseline 1.0 Introduction This Baseline Technical Report sets out the existing seascape, landscape, and visual environments within an agreed study area and assesses their sensitivity to the type of change proposed. The EIA Technical Report will then determine the magnitude and significance of any change to the character of the identified regional seascape, landscape, and any areas of designated landscapes, as well as assess the potential effect upon views, visual amenity and receptor groups, and cumulative effects within the overall Zone of Theoretical Visibility (ZTV). 1.1. The Proposed Development The lease boundary for the proposed European Offshore Wind Deployment Centre (EOWDC) covers an area of up to 20 km2 and is located approximately 2 km east of the nearest landfall on the Aberdeenshire coast. The deployment centre will have 11 wind turbines between 4 MW and 10 MW. The scheme has undergone numerous iterations since 2005 in terms of location and number of turbines which are discussed in the Environmental Statement (ES). The nature of the deployment centre is that it will comprise first of run turbines which may result in turbines of different heights. For the purposes of the SLVIA (e.g. ZTV, photomontages) the dimensions of the turbines have been agreed with the consultees to be assessed at the worst case scenario which is eleven 10 MW turbines with a hub height of 120 m and blade tip height of 195 m above lowest astronomical tide (LAT). As with all developments, there will be need to be an allowance for micro-siting which in this case may be up to 100m for each turbine. It is not envisaged that the final mix of turbine heights will result in a height difference that is greater than 20-35 m between turbines. Any differences may be noticeable at closer distances and the assessment will take this into consideration. Please see Volume 3 of the ES for a figure showing a detailed layout. An Ocean Laboratory, which could be an offshore structure associated with the deployment centre, would be subject to a separate planning application and will not be assessed as part of this seascape, landscape and visual impact assessment (SLVIA). However, as it is a foreseeable development it has been considered as part of the cumulative assessment. Whilst the majority of the development is located offshore, the completed scheme will also require various onshore elements, including a cable route and an electricity substation. The assessment of all onshore elements associated with the proposed EOWDC and the respective effects upon the landscape, its character and constituent features and the level of visual effect will be addressed separately within the Onshore Environmental Statement and the supporting Landscape and Visual Assessment technical report. Reference is made to the anticipated effects of the construction of offshore elements in section 6.0 of the SLVIA EIA Technical Report. 1.2. The Study Area It is accepted practice within seascape, landscape and visual assessment work that the extent of the study area is broadly defined by the visual envelope, or the Zone of Theoretical Visibility (ZTV), of the proposed development. The visual envelope represents the area of land and/or sea from within which it may be possible to see any part of the proposed development. Within the ZTV, the actual extent of visibility of a proposed development then depends upon a variety of factors including the scale of development, the relationship between the viewpoint and the development itself, the context within which the development is seen and the prevailing weather conditions existing at any one time. To cover all the potentially significant seascape, landscape and visual effects, a 40 km radius study area around the proposed offshore wind deployment centre was agreed with Scottish Natural Heritage (SNH). In order to undertake a full and robust assessment of the actual effects, and to assess the realistic worst-case scenario for the EOWDC development, the assessment also considers all onshore wind farms (existing, consented and in-planning) within a 60 km radius of the EOWDC. There are no other offshore wind farms within the study area. The sensitivity to change of the seascape, landscape and visual receptors has been assessed on the assumption that the consented wind farms have already been constructed. 1.3. Methodology Consultation SNH, Aberdeen City Council (ACC),