Digital Elevation Models (DEMs): Surface & Visibility Analysis

Elevation Model of Coastal Canadian Study Area

Point of Interest Observer

Elevation (m) Value High: 317 Low: 0 *Raster Resolution of 19.83466498m2

1:300,000

20 km

Created by Anton Schefter, 08-27-2018 Coordinate System: NAD 1983 UTM Zone 20N Source: Government of Canada, Geobase, Date Unknown

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Digital Elevation Models (DEMs): Surface & Visibility Analysis

Published on Oct 10, 2018

Anton Schefter

Combined Geobase’s digital elevation models (DEMs) to use within the study locations surface and visibility analysis. This included; slope, aspect, hillshading and viewshed generation. Specific to the resulting maps, each overlays specific raster surface analysis outputs to create aesthetically accurate maps based on terrain, along with observer positioning for viewshed context. Concepts Explored; mosaic to new raster, reclassification, raster overlay, raster surface analysis tools (slope [percent rise/degree] aspect, hillshade, contour), visibility analysis (viewshed) Certificate: Applied Digital Geography & GIS, Ryerson University Class: Map Algebra, Workshop | Map created within ESRI's ArcGIS software | Formatted within Adobe Illustrator

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