Showing posts with label Digital History. Show all posts
Showing posts with label Digital History. Show all posts

Tuesday, January 7, 2014

Rebuilding a PoW Camp

Reblogged from my other site, powsincanada.wordpress.com




From October 1943 to October 1945, over 400 German prisoners of war (PoWs) were employed in a woodcutting operation in Manitoba’s Riding Mountain National Park. Housed in a newly built camp on the shore of Whitewater Lake, the PoWs had better living conditions than the majority of civilians living around the park. When the buildings of the camp were removed in 1945 and 1946, the area was allowed to return to its natural state. For seventy years, nature has reclaimed the site, which is now a small prairie bordered by spruce. The history, however, has not been forgotten. Through the use of a 3D reconstruction such as this one, I hope to achieve a better understanding of how PoWs experienced internment at Riding Mountain while, at the same time, contributing to better public interpretation on and off the site.

The first step was to find appropriate sources that would allow me to build models of the buildings. Fortunately, through my research, I have found photographs of almost every building at the camp. However, no map of the camp has survived and it near impossible to determine the camp’s layout from the photographs alone. A solution came with a 1949 aerial photograph from which I could make out the foundations of the majority of the camp’s buildings. Combining the information obtained from these photographs with an architectural plan for a bunkhouse similar to those built at Riding Mountain, I could now start modelling.

Using Trimble’s SketchUp program, I started modelling the buildings whose dimensions I knew, or was fairly certain of. While the majority of the buildings at the camp were standard military installations and could be modelled from the information obtained from the architectural plans, I encountered problems when trying to model unique buildings, such as the garage, barn, and stables. This, however, was where SketchUp proved its worth. Using the Photomatch tool, I applied a single measurement to a photograph, which then allowed me to measure, with fair accuracy, the length of any other building in the photograph. With these dimensions, I could now finish modelling.

This 3D reconstruction, however, has to be taken as a representation rather than an exact replica of the camp. Due to source limitations, I was not able to model everything to the detail that I would have liked but instead had to improvise for cases in which no data exists. The building interiors were especially difficult for only one interior photo, of the recreation hall, is known to exist. While further research may uncover the interior layout of these buildings, I chose to leave these areas empty for the time. Another difficulty I encountered was that with a higher level of detail resulted in a significant decrease in the speed of both my computer and SketchUp. Therefore, to ensure that the final model was still accessible, I was unable to include the detail that I would have liked.

Despite it’s limitations, a 3D model such as this one can be extremely useful. By building this model, I am now able to learn much more about what life was like for German PoWs in Riding Mountain. Already, this model has also allowed me to correct some inaccuracies with my existing map, particularly in the designation of some of the buildings. By comparing the model of the camp to a copy of the “Nightwatchman’s Circuit,” listing the route taken by one of the guards each night, I changed the designation of three buildings and identified a previously-unknown fourth. More importantly, however, this model presents numerous opportunities for historical interpretation off and on the site. Whereas I have traditionally provided visitors with GPS units and printed handouts, a digital model expands my ability to help visitors understand the camp’s history. By uploading the model to IOS, using an app like SightSpace, visitors will be able to visualize and interact with the camp model while standing on the former camp’s location.

This model is only the beginning of reconstructing life at Riding Mountain. As more information becomes available (and as I port the model over to a faster computer), I hope to build a more complete and detailed representation of the camp. This will allow me to study the camp in ways previously unimaginable while contributing to a better understanding of what life was like for German prisoners of war in Riding Mountain National Park.

Thursday, November 14, 2013

Lasting Effects: PoWs in Riding Mountain National Park

Reblogged from powsincanada.wordpress.com

The following video is the result of a digital history assignment that I'm currently taken. The assignment tasked us with using digital methods to examine a significant or interesting landscape and naturally I chose the site of the Riding Mountain Park Labour Project in Manitoba's Riding Mountain National Park. For those not familiar with it, this project employed 440 German PoWs in a woodcutting operation from 1943 to 1945 in an effort to prevent a predicted fuelwood shortage.

My first task was to find the sources. While I have a fairly sizeable collection of textual records relating to the camp's history, maps and other spatial information are, for the most part, missing. Instead, I turned to aerial photographs to fill in my record gaps. Little did I realize how much I could learn from them!

With the assistance of the National Air Photo Library, the Manitoba Land Initiative, and a staff member at Riding Mountain National Park, I was able to assemble a range of coverage from 1931 to 2009. The next step was to import them into a GIS program and georeference them.

With the photos georeferenced, I was now able to add information from my records. As a map of the camp's layout has not survived, my first step was to create an outline showing the buildings' shapes and locations. Fortunately the building's footprints, with some exceptions, were still fairly clear, even in my photographs from the 1970s.

The next major step was to look at landscape change. Like a map of the camp, a map showing the location of the woodcutting area has also not survived. Using aerial photographs from the 1940s and 1950s, I was able to plot the extent of the woodcutting operation, which, as I discovered to my surprise, was almost entirely confined to the northern shore of Whitewater Lake. By comparing these photographs with modern ortho-imagery, the regrowth of the spruce population is quite remarkable. The Parks Bureau specifically instructed that the PoWs leave spruce trees standing in hopes of regeneration. As you can see from the video, the spruce population has [spoiler alert!] done exactly that!

Anyways, I've talked enough so on to the video. While this isn't going to win any Oscars and I am certainly not Morgan Freeman, I hope that this video demonstrates how GIS and other historical methods can be applied to studying history.

 
Thank you to all of the individuals who helped, especially Josh MacFadyen, who put up with all of my constant questions! One last thing; if you are interested in learning more, Josh and I will be delivering talks on Historical GIS for GIS day on November 20. For more information, please click here.