GIS Summary of SNAP 2019 (Part 3): Analyzing Extracted Results
Posted 5 years ago
By Todd Wong in the McMaster Blog
This third part of my four-part series will go through a case study in which we analyze and determine variables generated from several tools. Our case study involves 50 early bronze age sites on Naxos (Figure 1), an island located in the Aegean that is the largest of the Cycladic sister islands with a rich […]
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GIS Summary of SNAP 2019 (Part 2): Landscape Archaeology Analysis with ModelBuilder and Python
Posted 5 years ago
By Todd Wong in the McMaster Blog
Introduction Over the past few months I have been investigating a new methodology of finding settlement patterns using GIS. The current method of settlement patterns often involves deep research and field studies. In this report I wish to add a new element to settlement pattern analysis. This method can also add more information to landscape […]
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Clipping a Large DEM to a Large Shapefile and Getting Raster at Specific Elevations/Depths
Posted 5 years ago
By Sherry Chen in the McMaster Blog
When given the task of clipping a large DEM of Georgian Bay to a large shapefile of wetlands running along eastern and northern Georgian Bay at five different lake levels between specific depths, it led to more crashes than I expected. I found similar problems online and I want to show how I overcame it. […]
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Data Wrangling with Python and R, Part 2: LiDAR Validation with Differential GPS
Posted 5 years ago
By Sean Leipe in the McMaster Blog
One major part of my field season this past summer in the Yukon involved validating both of our LiDAR datasets with a differential GPS unit (dGPS for short). Independently quantifying survey accuracy is an essential part of any project involving LiDAR. Without knowing the LiDAR return accuracy in terms of elevation compared to the “true” […]
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Developing A Level of Traffic Stress (LTS) Network using R and ArcMap
Posted 5 years ago
By Rajveer Ubhi in the McMaster Blog
While cycling is a physical activity with recognized benefits, injury events do occur. Between 2006 and 2017, 890 cyclists died in Canada, averaging 74 deaths per year. Collisions with motor vehicles made up 73% of these fatal cycling events. In addition to deaths, about 7,500 cyclists were seriously injured every year during the same period […]
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The Changing Landscape of Manufacturing in Canada
Posted 5 years ago
By Nicole Langdon in the McMaster Blog
This past summer I had the pleasure of working with a professor from McMaster University’s Labour Studies Department to map the labour sheds of manufacturing workers in populous parts of Canada. The intersection of a shrinking manufacturing sector, higher commute times, stagnating wages, and increased housing costs makes for a rich discussion of the ways […]
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The Privacy Implications of Smart Cities: Developing a Web App and Interactive Survey
Posted 5 years ago
By Rajveer Ubhi in the McMaster Blog
Smart cities, and smart technologies, are emerging in many local contexts across Canada. Smart city technologies have quickly moved from development to adoption, often outpacing the social and political deliberations necessary to consider their effects in detail-particularly their effects on the privacy of Canadians (Bannerman, 2018). Dr. Sara Bannerman and her research team at McMaster […]
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Data Wrangling with Python and R, Part 1: “Fun” with LiDAR Buffers
Posted 5 years ago
By Sean Leipe in the McMaster Blog
One realization that keeps hitting me throughout my MSc is how many little things need to be dealt with in order to do even basic analysis using real-world data. My supervisor once told me that about 70% of the work that gets done in our lab is what he calls “data wrangling”, which I would […]
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The Esri Toronto User Conference: Day 2’s ArcGIS StoryMaps
Posted 5 years ago
By David Zaslavsky in the McMaster Blog
When I attended the second day of the Esri User’s Conference on October 9, I was excited for the day full of workshops and breakout sessions. While every session I walked away from had something that was useful, the session that I enjoyed and learned from the most was a walk-through of the updated ArcGIS […]
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Clipping a big DEM to a small shapefile and using Con to get specific depths
Posted 5 years ago
By Sherry Chen in the McMaster Blog
For my undergrad independent project, I am creating an atlas of coastal Eastern Georgian Bay with the Pat Chow-Fraser Lab at McMaster University. The atlas covers wetland information such as fish and vegetation community, water quality indices, wetland area and volume, and more. I primarily work on calculating wetland area and volume at five different […]
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