There is little controversy over how to conduct a visibility analysis over bare terrain. However, in many areas this results in a totally unrealistic estimate of a project’s visibility, and the question arises how to account for the screening effect of land cover when information about its height is not available. This paper investigates the difference between a digital model of the terrain (DTM) and canopy surface (DSM) from a 3-mile wide corridor in the state of New Hampshire, USA to evaluate the appropriateness of assigning a fixed height to land cover for the purposes of visibility analysis. The results find a 40-ft (12 m) height reasonable for forest cover, but suggest that using fixed heights for other land covers may be inappropriate.
Autor / Author: | Palmer, James F. |
Institution / Institution: | T. J. Boyle Associates, Vermont, USA |
Seitenzahl / Pages: | 8 |
Sprache / Language: | Englisch |
Veröffentlichung / Publication: | JoDLA − Journal of Digital Landscape Architecture, 1-2016 |
Tagung / Conference: | Digital Landscape Architecture 2016 – Representing, Evaluating and Designing Landscapes: Digital Approaches |
Veranstaltungsort, -datum / Venue, Date: | Istanbul, Turkey 01-06-16 - 03-06-16 |
Schlüsselwörter (de): | |
Keywords (en): | Viewshed, visibility screen |
Paper review type: | Full Paper Review |
DOI: | doi:10.14627/537612015 |
Diese Website nutzt Cookies, um ihre Dienste anbieten zu können und Zugriffe zu analysieren. Dabei ist uns der Datenschutz sehr wichtig.
Legen Sie hier Ihre Cookie-Einstellungen fest. Sie können Sie jederzeit auf der Seite Cookie-Informationen ändern.