3,106 research outputs found

    Azimuth and Range Optimization of the Velocity Azimuth Display (VAD) Algorithm in the WSR-88D

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    The Velocity Azimuth Display (VAD) algorithm occasionally produces inaccurate wind estimates for the VAD Wind Profile (VWP) product of the Weather Surveillance Radar 1988 Doppler (WSR-88D) System. Weather forecasters have observed differences between the radar\u27s wind profiles and wind profiles produced by rawinsondes and vertical wind profilers, when radiation and subsidence inversions in the atmosphere caused the radar beam to super refract. This thesis sought to improve the operational use of the VWP product for the WSR-88D near Denver, CO, by finding the optimal VAD algorithm Azimuth and Range parameter settings to overcome data contamination by hills located at the default range used by the algorithm. The WSR-88D Algorithm Testing and Display System (WATADS) processed 24 weeks of archived (level II) VAD wind data, which was verified by rawinsonde and vertical wind profiler data. Azimuth optimization was unsuccessful. However, reducing the range not only provided an average improvement in the accuracy of winds obtained under super refractive conditions, but also in the accuracy of those winds obtained when the atmosphere was not super refractive. In the overall average, the range which produced the most improvement over default range (30 km) accuracy was 28 km. The 26 km range also performed well

    The Webcasting Music Revolution is Ready to Begin, as Soon as We Figure out the Copyright Law: The Story of the Music Industry at War with Itself

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    No one has yet been able to agree on the meaning of the copyright laws related to webcast licensing and fees or how to define and treat new technological advances, innovations and uses. This article provides background into the history of the copyright law as it relates to music webcasting, including the Digital Performance Right in Sound Recordings Act of 1995 ( DPRA ) and the DMCA, explains the various forms of copyright protection held in recorded sound performances and its relation to online transmissions, discusses the history of the complex, legal situation which has resulted, new developments surrounding the proposed Music Online Competition Act ( MOCA ), and offers commentary and suggestions

    A Spatial Analysis of Artifacts Using a Geographic Information System at the Grand Portage North West Company Fur Trade Depot (21CK06)

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    From around 1780 to 1803, the Grand Portage North West Company Fur Trade Depot stood on the western shores of Lake Superior in northern Minnesota. The location served as the company’s inland headquarters along their primary trade route through the region now called the Boundary Waters. Some areas of the site have been partially excavated and examined, but none of the artifact datasets or structural features discovered through archaeology has been analyzed using the computer technology of geographic information systems (GIS). For the first time, GIS is used to spatially distribute one of the site’s artifact datasets from archaeological excavations conducted in 1963. This research exposes potentially overlooked relationships between these artifacts and previously discovered structural features. The results add new data to existing interpretations of how people in the late 1700s utilized this historic place

    Examining Community Resilience in the Disaster-Prone City of Conway, SC

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    Social science research on disaster-prone communities often cites social capital and community resilience to examine methods for improving emergency management and disaster risk reduction. The City of Conway, South Carolina, is susceptible to numerous natural disasters throughout the year and it has sustained damage from four major flooding disasters since 2015. This qualitative, ethnographic case study used interview data collected from nine Conway residents to examine and analyze perceived threats to citizens of Conway following a large-scale natural disaster and the possible responses by citizens in need of government assistance. Findings reveal that participants have endured more than one large-scale disaster that has impacted their perceived level of community resilience. The results also indicate that while most citizens stated they liked their community, they did not think they could endure another large-scale disaster. The article discusses the viability of using FEMA’s Building Resilient Infrastructure and Communities (BRIC) grant to develop local resilience planning groups (LRPGs). Implications for social change include cultivating efforts by governmental and non-governmental organizations to improve the level of community engagement, enhance the dissemination of information, improve disaster risk reduction; and build and maintain resilient communities. This research can also inform strategies to achieve several of the United Nations Sustainable Development Goals (SDGs) as well as the United Nations Office for Disaster Risk Reduction’s Sendai Framework for Disaster Risk Reduction (SFDRR)
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