Geography Commons^™

Enhancing Public Engagement On Offshore Wind Energy Using Genius Loci: A Case Study From A Lake Michigan Coastal Community, Erik Edward Nordman, Daniel O'Keefe, Erika Arndt

Erik Edward Nordman

Electromagnetic Waves In Contaminated Soils, Arvin Farid, Akram Alshawabkeh, Carey Rappaport

Akram N. Alshawabkeh

No abstract provided.

Automated Extraction Of Community Mobility Measures From Gps Stream Data Using Temporal Dbscan, Sungsoon Hwang, Timothy Hanke, Christian Evans

Sungsoon Hwang

Inferring community mobility of patients from GPS data has received much attention in health research. Developing robust mobility (or physical activity) monitoring systems relies on the automated algorithm that classifies GPS track points into events (such as stops where activities are conducted, and routes taken) accurately. This paper describes the method that automatically extracts community mobility measures from GPS track data. The method uses temporal DBSCAN in classifying track points, and temporal filtering in removing noises (any misclassified track points). The result shows that the proposed method classifies track points with 88% accuracy. The percent of misclassified track points decreased …

Defining Adequate Means Of Residents To Prepare Property For Protection From Wildfire, Trent Penman, Christine Eriksen, R Blanchi, M Chladil, A Gill, K Haynes, Justin Leonard, Jim Mclennan, Ross Bradstock

Christine Eriksen

Wildfire can result in significant loss of property and lives. Evidence shows that residents can decrease the risk of loss when they stay to defend their property. In order to safely defend a property, residents need to be adequately prepared for the wildfire conditions they face. Residents who wish to evacuate prior to the arrival of a wildfire also need to prepare their property and themselves for such an action. Despite the importance of preparation, there are no clear and quantifiable definitions of what it means to be prepared for different exposures to wildfire. Here we develop a model and …

Kernel Density Estimation Of Traffic Accidents In A Network Space, Zhixiao Xie, Jun Yan

Dr Jun Yan

A standard planar Kernel Density Estimation (KDE) aims to produce a smooth density surface of spatial point events over a 2-D geographic space. However, the planar KDE may not be suited for characterizing certain point events, such as traffic accidents, which usually occur inside a 1-D linear space, the roadway network. This paper presents a novel network KDE approach to estimating the density of such spatial point events. One key feature of the new approach is that the network space is represented with basic linear units of equal network length, termed lixel (linear pixel), and related network topology. The use …

Assessing The Impact Of An Organic Restoration Structure On Boat Wake Energy, Jean Ellis, Douglas Sherman, Bernard Bauer, Jeffrey Hart

Jean Taylor Ellis

No abstract provided.

Depth Compensation For Pressure Transducer Measurements Of Boat Wakes, Jean Ellis, Douglas Sherman, Bernard Bauer

Jean Taylor Ellis

No abstract provided.

Retention Of Beach Sands By Dams And Debris Basins In Southern California, Douglas Sherman, Kamron Barron, Jean Ellis

Jean Taylor Ellis

No abstract provided.

Wave Transformation Across A Rock Platform, Belinho, Portugal, Eugene Farrell, Helena Granja, Lorenzo Cappietti, Jean Ellis, Bailiang Li, Douglas Sherman

Jean Taylor Ellis

No abstract provided.

Mapping And Estimation Of Chemical Concentrations In Surface Soils Using Landsat Tm Satellite Imagery, Maruthi Sridhar Balaji Bhaskar

Maruthi Sridhar Balaji Bhaskar

No abstract provided.

Book Review: The Great Warming: Climate Change And The Rise And Fall Of Civilizations, James Fleming

James R. Fleming

No abstract provided.

Dialogue Television: The Climate Engineers, James Fleming

James R. Fleming

The problem of global warming is getting massive public attention. This comes forty years after the first major government report outlining the problem. But there is considerable disagreement over what steps should be taken to mitigate the problem and some scientist fear that politicians are not displaying sufficient urgency. James Fleming describes the technological quick fixes proposed by some scientists and the problems they might create.

The Climate Engineers: Playing God To Save The Planet, James Fleming

James R. Fleming

As alarm over global warming spreads, a radical idea is gaining momentum. Forget cuts in greenhouse-gas emissions, some scientists argue. Find a technological fix. Bounce sunlight back into space by pumping reflective nanoparticles into the atmosphere. Launch mirrors into orbit around the earth. Create a “planetary thermostat.” But what sounds like science fiction is actually an old story. For more than a century, scientists, soldiers, and charlatans have hatched schemes to manipulate the weather and climate. Like them, today’s aspiring climate engineers wildly exaggerate what is possible, and they scarcely consider political, military, and ethical implications of attempting to manage …

Knowledge Discovery From Multispectral Satellite Images, Arun D. Kulkarni

Arun Kulkarni

Radiocarbon Chronology And Δ13c Analysis Of Mid-To Late-Holocene Aeolian Environments, Guadalupe Mountains National Park, Texas, Usa, David Wilkins, Donald Currey

David E. Wilkins

The Red Dunes of Guadalupe Mountains National Park are quartzose sand sheets and dunes stabilized by sparse plant cover. Stratigraphy, radiocarbon dating, and δ13C analysis were examined in two of the larger arroyos for correlating evidence of aeolian deposition, which in this basin is taken as an indication of arid conditions. Four quartz-sand lithostratigraphic units, representing intervals of aeolian activity, are identified. Radiocarbon dates provide constraint on the timing of the three youngest quartz-sand units. A mid-Holocene aeolian interval, represented by a single radiocarbon date of 6350± 70 BP, is interpreted as transitional to an altithermal regime. A neopluvial period, …

Timing And Extent Of Late Quaternary Paleolakes In The Trans-Pecos Closed Basin, West Texas And South-Central New Mexico, David Wilkins, Donald Currey

David E. Wilkins

The Trans-Pecos Closed Basin is a hydrographically closed region covering 20,000 km centered on Salt Basin, 160 km east of El Paso, Texas. Geomorphic and limnetic evidence have been used to identify four major highstands for Lake King during the last glacial maximum (LGM). Additional geomorphic features from a second, recently identified, paleolake, Lake Sacramento, have been found in the Beargrass subbasin, a nested subbasin approximately 75 km northwest of Salt Basin. Radiocarbon ages of the organic material in Lake King sediments date four abrupt climate changes and rapid lacustrine transgressions during the LGM with a quasi-periodicity of 2000 yr. …