Brendan Harmon

Brendan Harmon
Louisiana State University | LSU · Robert Reich School of Landscape Architecture

PhD, MPhil, MLA

About

58
Publications
36,050
Reads
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313
Citations

Publications

Publications (58)
Book
Full-text available
This book presents a new type of modeling environment where users interact with geospatial simulations using 3D physical models of studied landscapes. Multiple users can alter the physical model by hand during scanning, thereby providing input for simulation of geophysical processes in this setting. The authors have developed innovative techniques...
Conference Paper
Full-text available
Tangible Landscape is a tangible interface for geographic information systems (GIS). It interactively couples physical and digital models of a landscape so that users can intuitively explore, model, and analyze geospatial data in a col-laborative environment. Conceptually Tangible Landscape lets users hold a GIS in their hands so that they can feel...
Conference Paper
Full-text available
We present a new, affordable version of TanGeoMS, a tangible geospatial modeling and visualization system designed for collaboratively exploring how terrain change impacts landscape processes. It couples a physical, three-dimensional model of a landscape with geospatial modeling and analysis through a cycle of scanning and pro- jection. Multiple us...
Article
Full-text available
We present TanGeoMS, a tangible geospatial modeling visualization system that couples a laser scanner, projector, and a flexible physical three-dimensional model with a standard geospatial information system (GIS) to create a tangible user interface for terrain data. TanGeoMS projects an image of real-world data onto a physical terrain model. Users...
Article
Full-text available
Green walls have been used in built environments as a natural element to bring various benefits, thus improving human health and well-being. However, in conventional virtual environments, the visual connection with a green wall is the only way that this natural element could benefit humans. Unfortunately, the impact of such visual connection on hum...
Article
Full-text available
Recent empirical studies have documented the importance of tropical mountainous rivers on global silicate weathering and suspended sediment transport. Such field studies are typically based on limited temporal data, leaving uncertainty in the strength of observed relationships with controlling parameters over the long term. A deficiency of long-ter...
Technical Report
Full-text available
A study and design inquiry into the reclamation and reuse of former sand and gravel mines along the Amite River in Louisiana. Conducted by graduate students in LSU's Robert Reich School of Landscape Architecture in the course LA 7031 Water Systems Studio in the Fall of 2018. This project was supported by LSU's Coastal Sustainability Studio with fun...
Article
Full-text available
While there are numerical landscape evolution models that simulate how steady-state flows of water and sediment reshape topography over long periods of time, r.sim.terrain is the first to simulate short-term topographic change for both steady-state and dynamic flow regimes across a range of spatial scales. This free and open-source Geographic Infor...
Article
Full-text available
While there are numerical landscape evolution models that simulate how steady state flows of water and sediment reshape topography over long periods of time, r.sim.terrain is the first to simulate short-term topographic change for both steady state and dynamic flow regimes across a range of spatial scales. This free and open source, GIS-based topog...
Chapter
Tangible Landscape works with many types of physical 3D models. When used to sculpt topography the physical model should be built of a malleable material such as sand or clay so that users can easily deform the surface. When used for object recognition the physical model can be built of a rigid material such as a wood product, foam, plastic, or res...
Chapter
The setup of the Tangible Landscape system consists of four primary components: (a) a physical model that can be modified by a user, (b) a 3D scanner, (c) a projector, and (d) a computer installed with GRASS GIS for geospatial modeling and additional software that connects all the components together. The physical model, placed on a table, is scann...
Chapter
People’s perception and experience of landscape plays a critical role in the social construction of these spaces—in how individuals and societies understand, value, and use landscapes. Perception and experience should, therefore, be an integral part of environmental modeling and geodesign. With the natural interaction afforded by Tangible Landscape...
Chapter
Full-text available
Forest fires, whether naturally occurring or prescribed, are potential risks for ecosystems and human settlements. These risks can be managed by monitoring the weather, prescribing fires to limit available fuel, and creating firebreaks. With computer simulations we can predict and explore how fires may spread. We can explore scenarios and test diff...
Chapter
Tangible Landscape allows us to explore the spatial patterns of topographic parameters and their relation to basic surface geometry. We can analyze the topography of a landscape model and how it changes by continually 3D scanning the model and computing DEMs from the scanned point clouds using binning or interpolation. By computing basic topographi...
Chapter
Overland water flow can detach exposed soil and transport it over large distances, leading to soil loss and sediment deposition across landscape. Soil erosion can be effectively controlled by modifying topography to reduce concentrated overland flow or by planting vegetation to reduce soil detachment and transport. We used Tangible Landscape to ana...
Chapter
Viewshed (visibility) analysis is used in many different fields for both practical and aesthetic applications. It can play an important role when planning new buildings or roads especially in urban settings where obstructed views may raise safety concerns. In recreation areas views of beautiful landscapes are highly valued and protected with great...
Chapter
In this chapter we discuss how to simulate inundation and flooding in coastal landscapes, explain workflows for developing storm surge and sea level rise scenarios, and present two case studies. The first case study explores storm surge and dune breach impacts for two populated barrier islands. One of these studies is designed as a simple education...
Chapter
The topography of the Earth’s surface controls the flow of water and mass over the landscape. Modifications to the surface geometry of the land redirect water and mass flows influencing ecosystems, crop growth, the built environment, and many other phenomena dependent on water. We used Tangible Landscape to explore the relationship between overland...
Chapter
In this chapter we demonstrate how tangible geospatial modeling can be coupled with virtual reality as a tangible immersive environment for landscape design. In a tangible immersive environment spatial scientists and landscape architects can rapidly, collaboratively design new landscapes balancing aesthetic and environmental factors. As a case stud...
Chapter
Solar radiation (insolation) is the primary driving force for Earth’s atmospheric, biophysical, and hydrologic processes. Knowing the amount of radiation at different geographic locations at different times is therefore necessary in many fields including energy production, agriculture, meteorology, ecology, and urban planning. In this case study we...
Chapter
Geospatial models require various types of spatial data inputs, often with different attributes and geometries (i.e. continuous surfaces, points, lines, or polygons). To enable a broad range of applications, while keeping interactions tangible and intuitive, we use tangible objects such as wooden markers, wooden blocks, colored sand, and colored fe...
Chapter
The design of a walking or hiking trail is based on fine scale topographic conditions and varied criteria specific to the particular context such as aesthetics, views, construction cost, and environmental sensitivity. As a result trail planning is typically a product of expert knowledge, field surveys, and creative design decisions—often made on si...
Technical Report
Full-text available
Fort Bragg military base in the Sandhills of North Carolina’s Piedmont is situated on more than 150,000 acres. Sections of the base are used for military training, others serve as refugia for endangered and threatened species. Recent stream surveys conducted at Fort Bragg documented the presence, abundance and distribution of freshwater mussels on...
Conference Paper
Full-text available
This paper presents novel and effective methods for teaching about topography–or shape of terrain–and assessing 3-dimensional spatial learning using tangibles. We used Tangible Landscape–a tangible interface for geospatial modeling–to teach multiple hands-on tangible lessons on the concepts of grading (i.e., earthwork), geomorphology, and hydrology...
Article
Full-text available
We present Tangible Landscape-a technology for rapidly and intuitively designing landscapes informed by geospatial modeling, analysis, and simulation. Tangible Landscape is a tangible interface powered by a geographic information system that gives 3D spatial data an interactive, physical form so that users can naturally sense and shape it. It coupl...
Book
This book provides an overview of the latest developments in the fast growing field of tangible user interfaces. It presents a new type of modeling environment where the users interact with geospatial data and simulations using 3D physical landscape model coupled with 3D rendering engine. Multiple users can modify the physical model, while it is be...
Poster
Full-text available
We developed and tested a new method for teaching hydrology, geomorphology, and grading using Tangible Landscape—a tangible interface for geospatial modeling.
Conference Paper
Full-text available
We introduce tangible immersion – virtual reality coupled with tangible interaction – to foster inter-disciplinary collaboration in a critical, yet creative design process. Integrating tangible, embodied interaction with geospatial modeling and immersive virtual environments (IVE) can make 3D modeling fast and natural, while enhancing it with reali...
Conference Paper
Empirical studies over the past two decades have documented the importance of small mountainous rivers (SMRs), particularly those in the tropics, on global silicate weathering and associated CO2 consumption budgets. Despite this important contribution to understanding silicate weathering, field studies for these locales are typically based on one t...
Article
Full-text available
Managing landscape-scale environmental problems, such as biological invasions, can be facilitated by integrating realistic geospatial models with user-friendly interfaces that stakeholders can use to make critical management decisions. However, gaps between scientific theory and application have typically limited opportunities for model-based knowl...
Article
Full-text available
Spatial patterns of land use change due to urbanization and its impact on the landscape are the subject of ongoing research. Urban growth scenario simulation is a powerful tool for exploring these impacts and empowering planners to make informed decisions. We present FUTURES (FUTure Urban – Regional Environment Simulation) – a patch-based, stochast...
Article
Full-text available
Chemical analyses from 71 watersheds across an ~450 km transect in west-central Panama provide insight into controls on weathering and rates of chemical denuda-tion and CO 2 consumption across an igneous arc terrain in the tropics. Stream and river compositions across this region of Panama are generally dilute, having a total dissolved solute value...
Article
Full-text available
Complex spatial forms like topography can be challenging to understand, much less intentionally shape, given the heavy cognitive load of visualizing and manipulating 3D form. Spatiotemporal processes like the flow of water over a landscape are even more challenging to understand and intentionally direct as they are dependent upon their context and...
Conference Paper
Full-text available
Tangible user interfaces are based on the premise that embodied cognition in computing can enhance cognitive processes. However, the ways in which embodied cognition in computing transform spatial thinking have not yet been rigorously studied. I have co-designed Tangible Landscape -- a continuous shape display powered by a geographic information sy...
Chapter
Full-text available
Tangible Landscape works with many types of physical 3D models. When used as a continuous shape display the physical model should be built of a malleable material such as sand, clay, or wax so that users can easily deform the surface. When used for object recognition the physical model can be built of a rigid material such as a wood product, plasti...
Chapter
Full-text available
Tangible Landscape allows us to explore the spatial patterns of topographic parameters and their relation to basic surface geometry. We can easily sculpt a physical model of a landscape with our hands changing its topography. With Tangible Landscape we can analyze the topography of a landscape model and how it changes by continually 3D scanning the...
Chapter
Full-text available
Viewshed (visibility) analysis is used in many different fields for both practical and aesthetic applications. It can play an important role when planning new buildings or roads especially in urban settings where obstructed views may raise safety concerns. In recreation areas views of beautiful landscapes are highly valued and protected with great...
Chapter
Full-text available
The design of a walking or hiking trail is based on fine scale topographic conditions and varied criteria specific to the particular context such as aesthetics, views, construction cost, and environmental sensitivity. As a result trail planning is typically a product of expert knowledge, field surveys, and creative design decisions—often made on si...
Chapter
Full-text available
Solar radiation (insolation) is the primary driving force for Earth’s atmospheric, biophysical, and hydrologic processes. Knowing the amount of radiation at different geographic locations at different times is therefore necessary in many fields including energy production, agriculture, meteorology, ecology, and urban planning. In this case study we...
Chapter
Full-text available
Forest fires, whether naturally occurring or prescribed, are potential risks for ecosystems and human settlements. These risks can be managed by monitoring the weather, prescribing fires to limit available fuel, and creating firebreaks. With computer simulations we can predict and explore how fires may spread. We can explore scenarios and test diff...
Chapter
Full-text available
In this chapter we discuss how to simulate inundation and flooding in coastal landscapes, explain workflows for developing storm surge and sea level rise scenarios, and present two case studies. The first case study is a series of storm surge and dune breach scenarios for a populated barrier island. The second is a design—informed by flood and eros...
Chapter
Full-text available
The setup of the Tangible Landscape system consists of four primary components: (a) a physical model that can be modified by a user, (b) a 3D scanner, (c) a projector, and (d) a computer installed with GRASS GIS for geospatial modeling and additional software that connects all the components together. The physical model, placed on a table, is scann...
Chapter
Full-text available
The topography of the Earth’s surface controls the flow of water and mass over the landscape. Modifications to the surface geometry of the land redirect water and mass flows influencing ecosystems, crop growth, the built environment, and many other phenomena dependent on water and soil. We used Tangible Landscape to explore the relationship between...
Article
Full-text available
The Isthmus of Panama comprises a lithologically diverse andesitic oceanic arc of Late Cretaceous to Holocene age; it has large spatial variation in rainfall, displays a large range of physical erosion rates, and, therefore, is an ideal location to examine silicate weathering in the tropics. We use a multiyear data set of river chemistry for a 450...
Article
Full-text available
While free and open source software becomes increasingly important in geospatial research and industry, open science perspectives are generally less reflected in universities' educational programs. We present an example of how free and open source software can be incorporated into geospatial education to promote open and reproducible science. Since...
Article
Tropical small mountainous rivers (SMRs) are increasingly recognized for their role in the global export of dissolved organic carbon (DOC) to the oceans. Here we utilize the Isthmus of Panama as an ideal place to provide first-order estimates of DOC yields across a wide assemblage of bedrock lithologies and land cover practices. Samples for dissolv...
Poster
Full-text available
Since traditional subsurface visualizations using 2D maps, profiles or charts can be difficult to interpret and often do not convey information in an engaging form, scientists are interested in developing alternative visualization techniques which would help them communicate the subsurface volume data with students and general public. We would like...
Chapter
Full-text available
Military installations and cities in the twenty-first century share many of the same dynamics and face many of the same challenges – i.e. the same environmental, climatic, and anthropogenic pressures. The military response to these challenges is, however, constrained by hierarchy and the culture of command and control. In a city, informal adaptatio...
Article
Full-text available
This study uses Danxiashan, a world heritage site in Guangdong province, China, as a case study for planning a hypothetical geotourism network of heritage sites. This landscape has a multiplicity of values—its geoheritage cannot be separated from its ecological or cultural heritage. When designing a network of heritage sites for such a diversely va...
Conference Paper
We present new advances in the development of Tangible Geospatial Modeling System (TanGeoMS), an exploratory environment for analysis of relationships between elevation surface morphology and dynamic landscape processes. The system integrates digital terrain data and a flexible physical model with GRASS GIS-based analysis and simulation tools. The...

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Projects

Projects (4)
Project
To conduct both field-based and computational research on erosional processes. To develop erosion and landscape evolution models, open source code, and GIS modules.
Project
Spatio-temporal analysis of large data sets to better understand and quantify the physical, chemical, and climatic processes that control the chemistry of rivers in Panama, in particular, and across the tropics, in general.