Conference Papers
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Near real-time updating of pager loss estimates Near real-time updating of pager loss estimates
Initial alerts by PAGER (Prompt Assessment of Global Earthquakes for Response) within minutes following an earthquake include several uncertainties, mainly due to potential inaccuracies in location, depth, fault delineation, and shaking estimates. We enhance an updating framework by incorporating early reports of fatalities within the first 24 hours, or so, of an earthquake to update...
Authors
Davis Engler, Kishor S. Jaiswal, Hae Young Noh, David J. Wald
Stop 3 – The Petersburg “Granite” redefined: Recognition and implications of Silurian to Devonian rocks in central-eastern Virginia Stop 3 – The Petersburg “Granite” redefined: Recognition and implications of Silurian to Devonian rocks in central-eastern Virginia
Introduction Although the Petersburg Granite had long been in practical use as a building stone since the 1830s (Watson, 1906; 1907; 1910; Darton, 1911; Steidtmann, 1945), it was first formally defined as a geologic unit by Anna Jonas on the 1928 geologic map of Virginia. Anna Jonas defined this unit as a Precambrian coarse-grained porphyritic biotite granite that was intruded by finer...
Authors
Mark W. Carter, Ryan J. McAleer, Marcie Occhi, Christopher S. Holm-Denoma, Jorge A. Vazquez, Brent E. Owens
Numerical modelling of mine pollution to inform remediation decision-making in watersheds Numerical modelling of mine pollution to inform remediation decision-making in watersheds
Prioritisation of mine pollution sources for remediation is a key challenge facing environmental managers. This paper presents a numerical modelling methodology to evaluate potential improvements in stream water quality from remediation of important mine pollution sources. High spatial resolution synoptic sampling data from a Welsh watershed were used to calibrate the OTIS solute...
Authors
Patrick Byrne, Patrizia Onnis, Robert L. Runkel, Ilaria Frau, Sarah F. L. Lynch, Aaron M. L. Brown, Iain Robertson, Paul Edwards
Risk-informed levee erosion countermeasure site selection and design in the Sacramento area part 2: Probabilistic numerical simulation of bank erosion Risk-informed levee erosion countermeasure site selection and design in the Sacramento area part 2: Probabilistic numerical simulation of bank erosion
USACE partnered with the United States Department of Agriculture, Agricultural Research Service, United States Geological Survey, and Texas A&M University to evaluate the erodibility of the river banks and levees to inform probabilistic numerical simulations using the Bank Stability and Toe Erosion Model (BSTEM). This paper, the second of two parts, addresses processing the collected...
Authors
Todd M. Rivas, Jonathan AuBuchon, Anna Shidlovskaya, Eddy J. Langendoen, Paul A. Work, Daniel N. Livsey, Anna Timchenko, Kellie Jemes, Jean-Louis Briaud
Risk-informed levee erosion countermeasure site selection and design in the Sacramento area part 1: Soil sampling, testing, and data processing Risk-informed levee erosion countermeasure site selection and design in the Sacramento area part 1: Soil sampling, testing, and data processing
USACE partnered with the United States Department of Agriculture, Agricultural Research Service, United States Geological Survey, and Texas A&M University to evaluate the erodibility of the river banks and levees to inform probabilistic numerical simulations using the Bank Stability and Toe Erosion Model (BSTEM). This paper discusses the measurement of the intrinsic erosion and...
Authors
Todd M. Rivas, Jonathan AuBuchon, Anna Shidlovskaya, Eddy J. Langendoen, Paul A. Work, Daniel N. Livsey, Anna Timchenko, Jean-Louis Briaud
Monitoring multi-decadal variations of urban heat island intensity Monitoring multi-decadal variations of urban heat island intensity
Urban development and associated land cover transitions alter the thermal and physical properties of the land surface, resulting the temperature in urban area higher than in rural area or urban heat island (UHI). Remote sensing and land cover data is usually used to assess UHI intensity and temporal change trends. In this study, we implemented a prototype approach to characterize the UHI...
Authors
George Z. Xian, Hua Shi, Kevin Gallo