Countryside Council for Wales Wind Farm Project: Project Planning Document - Pgis_2

ORGANISATION AND CONTACT INFORMATION

I. Name: David Miller

II. Organisation: Maculay Land Use Research Institute.

III. Address: Craigiebuckler, Aberdeen, AB15 8QH.

IV. E-mail address: d.miller@macaulay.ac.uk

MODELS USED FOR DATA ANALYSIS

II. Model Name: Calculation of topographic exposure

III. Source of Model: Quine and White

IV. Computer Language that the model is developed in:- Fortran

V. Hardware needed to run model: Unix workstation

VI. Data Inputs needed by model:

A. Ordnance Survey Digital Elevation Models - 1:10 000, 1:50 000

B. Wind turbine coverages for Scotland and Wales

VII. Model outputs

A. Tables/Statisics

1. Table/graph of relative exposure by turbine (coloured by farm) for each site

B. Maps / GIS datalayers / 3D models / photographs

1. Illustrations of topographic exposure for each area (both scales in Scotland)

2. Grid coverages of topographic exposure for each dataset

C. World Wide Web pages

1. Snapshot views of each dataset

2. Animation of snapshots showing input DEMs and output TOPEX

VIII. Accuracy/Sources of Uncertainty/Method of Handling

A. Error in DEMs (fromPERR_1)

B. Positional error of turbine locations

IX. Existing linkages between data (eg in databases) and software (eg databases/GIS/Statistical packages)

A. None

X. GIS Software used

A. ArcInfo (version 7), ArcView (version 2)

XI. Modelling Software used

A. Fortran code

XII. Database Software used

A. None

XIII. Any other comments

The surfaces of topographic exposure provide a basis for assessing the positioning of the turbines according to criteria other than visual impact.