Brent Yarnal

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Sea-level rise will increase the area covered by hurricane storm surges in coastal zones. This research assesses how patterns of vulnerability to storm-surge flooding could change in Hampton Roads, Virginia as a result of sea-level rise. Physical exposure to stormsurge flooding is mapped for all categories of hurricane, both for present sea level and for(More)
Collaboratories have been deWned as centers without walls, virtual places where teams of scientists can undertake coordinated research. As part of the Human–Environment Regional Observatory (HERO) infrastructure project, we have been developing a geocollaboratory to support work by geographically distributed scientists about geographic problems. Our speciWc(More)
Continued development in coastal communities results in an increase in the number of people and assets exposed to the type of catastrophic hazards recently displayed by Hurricane Katrina. Traditionally, the vulnerability of coastal communities has been measured either on a micro (community) or a macro (regional) scale. We present research that suggests(More)
Experts contend that weather and climate forecasts could have an important role in risk management strategies for community water systems. Yet, most water managers make minimal use of these forecasts. This research explores the determinants of the use of weather and climate forecasts by surveying managers of community water systems in two eastern American(More)
Recent natural disasters indicate that modern technologies for environmental monitoring, modeling, and forecasting are not well integrated with cross-level social responses in many hazard-management systems. This research addresses this problem through a Java-based multi-agent prototype system, GeoAgent-based Knowledge System (GeoAgentKS). This system(More)
This essay reviews the concept of vulnerability, paying special attention to the vulnerability of New Orleans exposed by Hurricane Katrina, and the need for interdisciplinary approaches to reducing vulnerability. Vulnerability is defined as a function of exposure, sensitivity, and adaptive capacity. Physical vulnerability results from exposure, and social(More)
Sustainable land-use planning requires decision makers to balance community growth with resilience to natural hazards. This balance is especially difficult in many coastal communities where planners must grapple with significant growth projections, the persistent threat of extreme events (e.g., hurricanes), and climate-change-driven sea level rise that not(More)
The Pennsylvania greenhouse gas (GHG) emissions inventory presented in this paper provides detailed estimates of emissions and their sources for the six major categories of GHGs. The inventory was compiled using the current U.S. Environment Protection Agency methodology, which applies emissions factors to socioeconomic data, such as fossil energy use,(More)
The restructuring of Bulgaria's social, economic and political system includes a change in the way it handles disaster preparation and response. During the Cold War, the entire country drilled regularly in civil defense, which was under the control of the army. A recent decree and pending legislation transfers civil defense from the military to the Council(More)
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