Matching Items (19)
Description
Decision makers contend with uncertainty when working through complex decision problems. Yet uncertainty visualization, and tools for working with uncertainty in GIS, are not widely used or requested in decision support. This dissertation suggests a disjoint exists between practice and research that stems from differences in how visualization researchers conceptualize uncertainty and how decision makers frame uncertainty. To bridge this gap between practice and research, this dissertation explores uncertainty visualization as a means for reframing uncertainty in geographic information systems for use in policy decision support through three connected topics. Initially, this research explores visualizing the relationship between uncertainty and policy outcomes as a means for incorporating policymakers' decision frames when visualizing uncertainty. Outcome spaces are presented as a method to represent the effect of uncertainty on policy outcomes. This method of uncertainty visualization acts as an uncertainty map, representing all possible outcomes for specific policy decisions. This conceptual model incorporates two variables, but implicit uncertainty can be extended to multivariate representations. Subsequently, this work presented a new conceptualization of uncertainty, termed explicit and implicit, that integrates decision makers' framing of uncertainty into uncertainty visualization. Explicit uncertainty is seen as being separate from the policy outcomes, being described or displayed separately from the underlying data. In contrast, implicit uncertainty links uncertainty to decision outcomes, and while understood, it is not displayed separately from the data. The distinction between explicit and implicit is illustrated through several examples of uncertainty visualization founded in decision science theory. Lastly, the final topic assesses outcome spaces for communicating uncertainty though a human subject study. This study evaluates the effectiveness of the implicit uncertainty visualization method for communicating uncertainty for policy decision support. The results suggest that implicit uncertainty visualization successfully communicates uncertainty in results, even though uncertainty is not explicitly shown. Participants also found the implicit visualization effective for evaluating policy outcomes. Interestingly, participants also found the explicit uncertainty visualization to be effective for evaluating the policy outcomes, results that conflict with prior research.
ContributorsDeitrick, Stephanie (Author) / Wentz, Elizabeth (Thesis advisor) / Goodchild, Michael (Committee member) / Edsall, Robert (Committee member) / Gober, Patricia (Committee member) / Arizona State University (Publisher)
Created2013
Description
Digital transformation can be defined as, “the acceleration of business activities, processes, competencies, and models to fully leverage the changes and opportunities of digital technologies and their impact in a strategic and prioritized way,” (Edmead, Mark, and IDG Contributor Network, 2016). Following the industrial revolution, digital transformation has taken shape as the current revolution and innovative process. When industry’s and businesses engage in digital transformation, they create disruption and pave the way for enhanced customer value, efficient operational processes, and innovative business models. The prospect of this thesis is to: (1) understand how digital transformation strategy helps to propel innovation for the self-driving car, (2) understand how this innovation will create value in the grand schema for digital transformation, (3) develop a GIS-based (location analytics) study to understand the market opportunity for such technology and innovation. We outline how digital transformation as a whole represents a modern form of creative destruction, that is rewarding to businesses who engage in transformation for efficiency and innovation, and addresses the implications of those that do not. We discuss how digital transformation has affected the auto industry to invest in innovating self-driving cars. Finally, we perform location analytics to develop an opportunity analysis in five big markets around the Phoenix Metropolitan area in the State of Arizona to identify the potential markets for self-driving cars. We conclude this study with a discussion on how technology strategy is transforming the world.
ContributorsReichman, Allison (Author) / Satpathy, Asish (Thesis director) / Deitrick, Stephanie (Committee member) / Department of Supply Chain Management (Contributor) / Barrett, The Honors College (Contributor)
Created2019-12
Description
When renowned cartographer and mountaineer Brad Washburn visited the Grand Canyon in 1969, he discovered that existing maps of the area were "inadequate" for either popular or scholarly use. Never one to be deterred, Washburn set about making one. This is the story of his 7-year-long effort, done in close collaboration with the National Geographic Society, Switzerland's Federal Office of Topography, and scores of supporting characters, to satisfy his desire to produce the best map of the canyon -- more precise, more detailed, more beautiful -- than anything that had come before.
ContributorsFry, Michael (Author, Speaker) / ASU Marketing Hub (Videographer)
Created2019-02-28
Description
In 1985, Arizona Governor Bruce Babbitt and several others officially registered the Grand Canyon Trust as a non-profit organization dedicated to defending the natural integrity of the Grand Canyon. But the Trust realized early on that issues don’t stop at the boundaries of Grand Canyon National Park. So in 1987, we expanded the scope of our work to encompass the entire Colorado Plateau, of which the Grand Canyon stands as the centerpiece. GIS at the Trust helps tell the historic and current conservation story through advanced cartography, interactive web mapping, and spatial analysis. Using art and science, we design maps that illustrate physical characteristics, cultural values, proposals and conservation actions, and vulnerabilities across the Colorado Plateau. Our work reaches a broad audience including policy-makers, constituencies, government agencies, and our supporters. This presentation will highlight some of our most recent work in and around Grand Canyon, challenges we face as geographers, and how our maps have been used to further protect the Grand Canyon.
ContributorsSmith, Stephanie (Author, Speaker) / ASU Marketing Hub (Videographer)
Created2019-03-01
Description
Grand Canyon is a dynamic natural landscape that encodes nearly two billion years of geological history, and which is also situated within a cultural landscape that encodes the names, experiences, and lives of people from ancestral Native Americans to American explorers and settlers to modern visitors from across the nation and around the world. Place-based ways of teaching integrate the natural and the cultural attributes of a place or region such as Grand Canyon to facilitate learning. For the last century, Grand Canyon National Park has offered interpretive programs and resources to visitors that hew to this place-based philosophy, enabling millions of Park visitors to make intellectual and emotional connections to the landscape and its natural and cultural history. Geological and educational research have contributed to the interpretive mission of the Park with new research-based resources such as the Trail of Time Exhibition. Even more recently, advances in visualization and instructional technology have brought the pedagogical power of Grand Canyon to the online realm through immersive, interactive virtual field trips (iVFTs), which have the potential to enable many millions more to explore and learn from the natural and cultural landscapes of Grand Canyon, including its most physically inaccessible places. Current research is directed toward rendering iVFTs ever more authentic and place-based, while also enhancing the accessibility and effectiveness of in-person field experiences for visitors and students at Grand Canyon.
ContributorsSemken, Steven (Author, Speaker) / ASU Marketing Hub (Videographer)
Created2019-03-01
Description
Over 700 known deaths have occurred in Grand Canyon from the first river exploration by John Wesley Powell in 1869 to present day. Causes range from suicides to accidental drownings, heatstroke, snake bite, flash floods, aircraft collisions, crashes and even murder. Based on the book ‘Over the Edge: Death in Grand Canyon’ by Michael Ghiglieri and Thomas Myers, this map illustrates the geography of deathly incidents. It uses a pan-sharpening technique to create a crisp, vibrant combination of layer tints and hillshades. The colours are defined to allow the map to be viewed in normal two dimensional viewing but in 3D when viewed using chromadepth glasses. The map provides a dramatic, visually engaging illustration of a unique dataset and maintain the first geocoded display of the complete record of deaths in Grand Canyon. In so doing, it illustrates the development and application of novel cartographic approaches. Vignettes describing the incidents bring the quantity of death into perspective through the telling of short individual stories, some fantastic, some tragic. The presentation will discuss the map’s creation in 2012, a recent update, and also the response to its publication. There were some very real issues faced in portraying an often sensitive subject matter, and some of the failures in this respect and the lessons learned will be explored.
ContributorsField, Kenneth (Author, Speaker) / ASU Marketing Hub (Videographer)
Created2019-03-01
DescriptionIn this presentation, Spindler will describe the work of designing and building the 100 Years of Grand collaborative digital archive and the associated challenges of item selection, description, copyright, and project coordination. He will also demonstrate the digital archive and present examples of key items of Grand Canyon history.
ContributorsSpindler, Rob (Author, Speaker) / ASU Marketing Hub (Videographer)
Created2019-03-01
Description
The passage of the Grand Canyon Protection Act (1992) and the completion of the Glen Canyon Dam Environmental Impact Statement (1996) ushered in a new era of environmental monitoring and research of the Colorado River corridor in Grand Canyon. Technological advancements in surveying and mapping systems over this period have made it possible to map larger areas with an increasing level of precision and accuracy. All of these mapping efforts rely on an accurate geodetic control network along the rim and inner canyon corridor. Examples of mapping efforts include aerial photographic, topographic, and bathymetric missions. Aerial overflights of the entire canyon corridor have been conducted in 2002, 2009, and 2013 and the high-resolution orthophographs and photogrammetrically-derived topography form the base data set for a number of investigations. From 2009 to 2017, over 160 miles of channel have been mapped using multibeam bathymetry. The bathymetric maps reveal the form of the Channel bed and allow researchers to asses flow operations from Glen Canyon dam on the sediment resources within the Colorado River ecosystem.
ContributorsKaplinski, Matt (Author, Speaker) / ASU Marketing Hub (Videographer)
Created2019-03-01
Description
In 1923 an expedition left Lees Ferry with the intent of making an unbroken level survey line 251 miles through Grand Canyon. This expedition was led by the Chief Topographic Engineer of the USGS, Claude Birdseye. His handpicked crew consisted of four boatman, a rodman and a cook, who navigated four boats over 74 day to complete this remarkable task. Birdseye and his men also ran survey lines up prominent side canyons and were charged with perhaps the most important aspect of the mission, locating potential dam sites. The level line that was produced from this expedition and the accurate maps of eight potential dam sites started a dialogue that would frame and potentially tame the wild Colorado River running through the West. These maps were ultimately used to aid in the creation of multiple dams and water diversion projects. Today researchers continue to utilize several maps, photographs and survey points almost 100 years after they were collected.
ContributorsManone, Mark (Author, Speaker) / ASU Marketing Hub (Videographer)
Created2019-03-01
Description
Students were invited to submit their original cartographic work to the 2019 Mapping Grand Canyon Student Map Competition. Three categories of cartographic production were considered for this competition. In addition, Arizona State University and the Arizona Geographic Information Council have partnered to make all your hard work worth even more! When students submitted their map to the Mapping Grand Canyon Map Competition, they also had the option to automatically submit it to the AGIC Maps & Apps Competition at the 2019 AGIC Education & Training Symposium.
ContributorsASU Marketing Hub (Videographer)
Created2019-02-28