A generalized approach is proposed to support integrated traffic flow management decision making studies at both the U.S. national and regional levels. It can consider tradeoffs between alternative optimization and heuristic based models, strategic versus tactical flight controls, and system versus fleet preferences. Preliminary testing was accomplished by implementing thirteen unique traffic f...

The Center for Collaborative Adaptive Sensing of the Atmosphere (CASA), a National Science Foundation Engineering Research Center, is creating a new type of weather observation system featuring networks of low-power, low-cost radars that adaptively and collaboratively collect high resolution data in the lowest 3 km of the atmosphere, a region which is under sampled by current technology. These ...

Convective weather is responsible for large delays and widespread disruptions in the U.S. National Airspace System, especially during summer. Although Air Traffic Flow Management algorithms exist to schedule and route traffic in the face of disruptions, they require reliable forecasts of airspace capacity. However, there exists a gap between the spatial and temporal accuracy of aviation weather...

This study aims to classify the Drought Code in North Sumatra. is part of Fire Danger Rating System (FDRS) developed Canada. One sub-systems FDRS Weather Index (FWI) that evaluate fire hazards from current and past weather conditions. classified by using Support Vector Machine. Machine widely used data classification process. advantages methods it has ability classifying large amount more than ...

Abstract Improving the forecasting and communication of weather hazards such as urban floods extreme winds has been recognized by World Meteorological Organization (WMO) a priority for international research. The WMO established 10-yr High-Impact Weather Project (HIWeather) to address global challenges accelerate progress on scientific social solutions. In this review, key in hazard are first i...

Low-income communities and communities of color often suffer from multiple environmental hazards that pose risks to their health. Here we extended a cumulative environmental hazard inequality index (CEHII) - developed to assess inequalities in air pollution hazards - to compare the inequality among three urban counties in California: Alameda, San Diego, and Los Angeles. We included a metric for...

Offshore platform installation is associated with several inherent risks arising from majorcritical safety challenges such as fires, explosions, blowouts, falling objects, earthquake, extreme weather,and impact from moving objects such as helicopters or ships. These critical problems are due largely to designerrors or inadequacies, and poor maintenance. The safety challenges highlig...

This paper reviews the most common health hazards occurring among personnel of peacekeeping and stabilization missions functioning within armed conflicts in the contemporary world. Military operations have been executed in diverse climatic and sanitary conditions, which are frequently unfamiliar for their participants. Some of them, e.g. the UN peacekeeping missions in the Middle East (Lebanon,...

The Risky Shift Phenomenon: What Is It, Why Does It Occur and What are the Implications for Outdoor Recreationists? “Climbing is high risk. But for me, there are intrinsic rewards in this risk—an ability to fill the desire for adventure, which we have 7-Elevened out of our life” Conrad Anker Introduction It is generally accepted that a certain amount of risk is an inherent part of any adventure...

Abstract. The changing climate and anthropogenic activities raise the likelihood of damage due to compound flood hazards, triggered by combined occurrence extreme precipitation storm surge during high tides exacerbated sea-level rise (SLR). Risk estimates associated with these event scenarios are expected be significantly higher than derived from a standard evaluation individual hazards. In thi...