Poster showing GPS data from Jeremys Bay Campground Kejimkujik National Park and Historic Site, created with ArcMap 9 from data we collected with a Leica RTK GPS & Total Station.
Here is a poster generated with ESRI ArcGIS for a summer GIS project that I worked on for Parks Canada. [The PDF technical report details the methodologies and issues that were encountered with a Spatial GIS vegetation database and GIS Spatial modeling project at the Applied Geomatics Research Group (AGRG) during the summer of 2004 that involved generating a spatial geographic database for Jeremy’s Bay Campground of Kejimkujik National Park and Historic Site. High resolution aerial photography acquired from a previous AGRG (COGS) aerial photography mission was used along with extensive data collected during a Rapid Vegetation Assessment survey and a detailed forest stand interpretation.]
The following images are a few enhanced LandSAT images of Trout Lake, Nova Scotia (popular fishing place on the South Mountain – south of the town of Middleton) created using PCI Geomatica.
The above images are color shaded relief models that I created with a DEM of Makkovik, Labrador. These were part of a data integration project that I was involved with during my intense Remote Sensing training at the Center of Geographic Sciences (COGS) in Nova Scotia. the Makkovik region is a coastal area along the eastern coast of northern Canada that is rich with geologic outcrops.
A shaded relief model uses different color shades according to the varying levels of elevation and azimuth to create an enhanced simulated terrain. The shading is done with the assumption of a defined light source at a fixed location, shone across the surface. The user-specified light source will then determine the positions of shadows and highlighted slopes making ones facing light source appear bright and those facing away appear dark. By default shaded relief models are created with a grey scale ramp that represent the surface reflectance from the light source at any altitude and any azimuth however adding color to it can add an extra chromo stereoscopic component to it.
Assuming that a straight line is drawn connecting the user defined point source to the top left pixel of the image, the azimuth angle is the aspect of this line in degrees clockwise from north; the elevation angle is the elevation of the line in degrees from the horizontal.
The shaded grey level for each cell is the result of a calculation from the cosine of the angle between the normal vector to the surface (i.e. slope andaspect) and the direction of illumination. All surfaces not illuminated by the light source such as a slope of 90 degrees will be set to 0. An elevation exaggeration is sometimes added to help enhance the features of a fairly homogeneous surface.
In the example shown to the right, a raster aspect map of Lismore, Nova Scotia was derived from a digital elevation model (DEM) calculated with an azimuth angle of 315 degrees and an elevation angle of 45 degrees.
Shaded Relief related:
- Creating a Color Shaded Relief Model from a DEM with PCI Geomatica v9.1 software
- 3D Modeling with High Resolution LIDAR – presented at the GeoTec Conference in Toronto,Ontario and displayed at the Applied Geomatics Research Group in Middleton, Nova Scotia
- Bouctouche, NewBrunswick – Color Shaded Relief Poster presented at the CCAF annual general meeting held at the University of Moncton in Moncton, New Brunswick, and displayed at the Applied Geomatics Research Group in Middleton, Nova Scotia
- Flood Risk Mapping using LIDAR, SE NB Climate Change Action Fund presented at Geomatics Atlantic 2004 Conference held at the University of New Brunswick in Fredricton, New Brunswick
- Integration of Digital elevation Models and Imagery : Terrain Analysis of the Antigonish Highlands – presented at the Center of Geographic Sciences in Lawrencetown, Nova Scotia
- Makkovik,Labrador – 3D modeling and Data Integration presented at the Bedford Institue of Oceanography in Dartmouth, Nova Scotia
- Surface Modeling and LIDAR Validation
- Three Dimensional Flood Modeling with High Resolution LIDAR – (Graduate Project Final Paper) Middleton, Nova Scotia: Applied Geomatics Research Group, Centre of Geographic Sciences, 200 pages
- Three Dimensional Flood Modeling with High Resolution LIDAR presentation from the Canadian Institute of Geomatics 2005 Conference held in Ottawa,Ontario
The following map was one that I created for the 8th ICF Marathon Canoe World Championships committee depicting the site of the event. This was the first time that the international event took place in Canada and was held in Dartmouth, Nova Scotia in 2000 (Note it is actually a photo of the map I created).
The ICF Canoe Marathon World Championships are an international canoe marathon event organised by the International Canoe Federation (ICF). The World Championships have been held every two years since their first edition in 1988, before converting into an annual event as of 1998. [source: wikipedia]
A Northen Nova Scotia RADARSAT mosaic created using PCI OrthoEngine software. Back then RADARSAT data came unformatted and had to be heavily processed and stitched together to form an image like the one featured here …
The large image on the featured as part of this research poster is a color shaded relief model of the Antigonish Highlands in Nova Scotia. The Antigonish Highlands are underlain by a block of older crustal rocks which are bounded and transected by numerous major faults. The Unit stands at an average elevation of …