Applications of visual magnitude in forest planning: A case study

Chamberlain, Brent C.; Meitner, Michael J.; Ballinger, Robert

doi:10.5558/tfc2015-071

Cited by 9 publications

(5 citation statements)

References 13 publications

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“…The method presented here is not only applicable for understanding scenic areas from social media users' photographic locations. It can also be used to visualise the visual impact of proposed park management, such as forestry or road construction, and therefore help guide the mitigation of significant visual impacts (Chamberlain et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…For example, decision- makers may reject proposed landscape management when using the traditional viewshed for fears of it degrading the view, but in reality, the area of proposed management may only account for an infinitesimally small proportion of the viewer's field of view. This difference is likely to be introduced by pixels closer to the viewpoint often being assigned a greater visual magnitude weighting as land cover closer to the user will often take up a greater proportion of the field of view (Chamberlain and Meitner, 2013;Chamberlain et al, 2015).…”

Section: Objective 2: Effect Of Viewshed Methods Land Cover Visibilitymentioning

confidence: 99%

“…A pixel with a value of 0 represents a pixel that is not visible, while a pixel with a value of 1 would represent an area that occupies 100% of the viewer's perspective and therefore be the only pixel visible. Values falling between 0 and 1 are representative of the degree of visibility (Chamberlain and Meitner, 2013;Chamberlain et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Understanding Landscape Aesthetics Using a Novel Viewshed Assessment of Social Media Locations Within the Troodos UNESCO Global Geopark, Cyprus

Fox

Chamberlain

Lindquist

et al. 2022

Front. Environ. Sci.

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Globally, geodiversity and the associated ecosystem services it provides, are both under threat from anthropogenic pressures and environmental changes. The UNESCO Global Geoparks Programme was established to create protected areas that not only preserve geodiversity but enhance human wellbeing and cultural heritage. Understanding the role geodiversity plays in providing such ecosystem services is necessary for providing holistic conservation priorities that ensure their sustainable use. Studies have extensively used social media data to assess cultural ecosystem services, however, the photographic viewable area, which demonstrates scenic or areas of interest, has been scarcely evaluated. Studies often take crude measurements of viewsheds rather than isolating viewed content. Here, we gather georeferenced images taken inside geopark boundaries from the social media website Flickr as a proxy for aesthetically pleasing viewpoints. To understand what landscape characteristics are visible from these viewpoints we calculate viewshed analysis following the novel visual magnitude approach. The use of magnitude viewshed provides a metric for visual relevancy compared to traditional viewshed approaches that only provide a binary metric representing visible or non-visible. Here, we find that the use of the visual magnitude methodology provides richer information about what is visible than from traditional viewshed analysis. We find that aesthetically appreciated views as inferred by social media within the Troodos Geopark, Cyprus, do not only include natural features such as forest and water but are often related to geodiversity and anthropogenically altered landscapes such as mineral extraction sites and vineyards, for which the geopark is known. These results can help to inform geoconservation practices with the goal of sustainable access and enjoyment of aesthetic services.

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Section: Discussionmentioning

confidence: 99%

Section: Objective 2: Effect Of Viewshed Methods Land Cover Visibilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Understanding Landscape Aesthetics Using a Novel Viewshed Assessment of Social Media Locations Within the Troodos UNESCO Global Geopark, Cyprus

Fox

Chamberlain

Lindquist

et al. 2022

Front. Environ. Sci.

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“…The imagery of flood impacts accompanying flood projections (Keller et al 2006) and hurricane storm surge forecasts (Rickard et al 2017;Wilhelmi et al 2023) have been shown to increase information comprehension and risk perception. Evaluation of three-dimensional (3D) visualizations, fourdimensional (4D) time-enabled animations, and immersive augmented and virtual reality (Chamberlain et al 2015(Chamberlain et al , 2016Unreal Engine 2018;Tomkins and Lange 2019;Stempel and Becker 2021;Bernhardt et al 2019) also showed improvement in information comprehension and risk perception and generated new knowledge on how people perceive space and place (Bruns and Chamberlain 2019). These examples illustrate the potential to improve risk communication through geovisualizations, especially when cartographic elements and visual representations of risk connect people to their environment or, broadly speaking, to a place.…”

Section: Introductionmentioning

confidence: 99%

Integrating Place and Sense of Place into Geovisualizations of Hurricane Storm Surge Risk

Wilhelmi,

Chamberlain,

Morss

et al. 2023

Weather, Climate, and Society

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Geovisualizations play a central role in communicating hurricane storm surge risks to the public by connecting information about the hazard to a place. Meanwhile, people connect to places through meaning, functions, and emotional bond, known as a sense of place. The mixed-method approach presented in this paper focuses on the intersection of sense of place, geovisualization, and risk communication. We explore place meaning, scale of place, and place attachment in the coastal communities in Georgia and South Carolina. We conducted cognitive mapping focus groups and developed a series of geovisualizations of storm surge risk with varying representations of place. We then investigated people’s ability to connect visual storm surge information to a place and understand their risk by testing these geovisualizations in a large population survey (n=1442). We found that a 2D regional-scale map displayed together with a 3D abstract representation of a neighborhood was the most helpful in enabling people to relate to a place, quickly make sense of the information, and understand the risk. Our results show that while the geovisualizations of storm surge risk can be effective generally, they are less effective in several important and vulnerable groups. We found substantial impacts of race, income, map reading ability, place attachment, and scale of place on how people connected the storm surge risk shown in the visual to a place. These findings have implications for future research and for considering the way weather forecasters and emergency managers communicate storm surge information with diverse audiences using geovisualizations.

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“…Visibility (viewshed) analysis has been applied to a range of applications in forest ecosystems, from locating fire watchtowers (Bao et al, 2015;Göltaş et al, 2017), hiding scars from timber harvest (Chamberlain et al, 2015;Domingo-Santos et al, 2011), planning military operations (Caldwell et al, 2005;Drummond, 1956), to studying animal spatial behavior (Dupke et al, 2017;. However, despite the successful application of visibility analysis in natural resource management, previous studies indicate that measurement of fine-scale visibility in forest environments, particularly at the landscape level, is a challenge considering the architectural complexity of the plant (Murgoitio et al, 2014) which causes objects such as animals to be obscured (camouflaged) by vegetation.…”

Section: Introductionmentioning

confidence: 99%

Advancing animal ecology through LiDAR-based 3D visibility analysis

Zong¹

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Applications of visual magnitude in forest planning: A case study

Cited by 9 publications

References 13 publications

Understanding Landscape Aesthetics Using a Novel Viewshed Assessment of Social Media Locations Within the Troodos UNESCO Global Geopark, Cyprus

Understanding Landscape Aesthetics Using a Novel Viewshed Assessment of Social Media Locations Within the Troodos UNESCO Global Geopark, Cyprus

Integrating Place and Sense of Place into Geovisualizations of Hurricane Storm Surge Risk

Advancing animal ecology through LiDAR-based 3D visibility analysis

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