Physical Sciences and Mathematics Commons^™

Back-Flow Prevention Strategies For Stormwater Lines, Ron Evins

September 29, 2016: Adaptive Structures and Innovative Solutions

No abstract provided.

Emily Steinhilber Column: Virginia's Leadership In Flood Resilience, Emily E. Steinhilber

News Items

No abstract provided.

Plasma Processes And Polymers Third Special Issue On Plasma And Cancer, Mounir Laroussi, Annemie Bogaerts, Nazir Barekzi

Electrical & Computer Engineering Faculty Publications

(First paragraph) This issue of Plasma Processes and Polymers is the third in a series on the applications of low temperature plasma (LTP) against cancer, or “plasma oncology.” The papers in this issue are inspired from the talks given at the third International Workshop on Plasma for Cancer Treatment (IWPCT) which took place on April 11–12, 2016 in Washington, DC, USA. IWPCT is an international workshop that was created in 2014 as a venue to share cutting edge plasma oncology research. The first IWPCT was held in Washington DC, under the co-chairmanship of Prof. Mounir Laroussi (Old Dominion University) and …

Version 1.3 Aim Sofie Measured Methane (Ch4): Validation And Seasonal Climatology, P. P. Rong, J. M. Russell Iii, B. T. Marshall, D. E. Siskind, M. E. Hervig, L. L. Gordley, P. F. Bernath, K. A. Walker

Chemistry & Biochemistry Faculty Publications

The V1.3 methane (CH₄) measured by the Aeronomy of Ice in the Mesosphere (AIM) Solar Occultation for Ice Experiment (SOFIE) instrument is validated in the vertical range of ~25–70 km. The random error for SOFIE CH₄ is ~0.1–1% up to ~50 km and degrades to ~9% at ∼ 70 km. The systematic error remains at ~4% throughout the stratosphere and lower mesosphere. Comparisons with CH₄ data taken by the SCISAT Atmospheric Chemistry Experiment-Fourier Transform Spectrometer (ACE-FTS) and the Envisat Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) show an agreement within ~15% in the altitude range ~30–60 …

Commonwealth Center For Recurrent Flooding Resiliency: An Update, Morris Foster, John Wells

Commonwealth Center for Recurrent Flooding Resiliency (CCRFR): Presentations

October 17th, 2016 Update to Joint Subcommittee on Coastal Flooding. PDF of powerpoint presentation.

Protecting The Most Vulnerable, Joshua G. Behr

VMASC Publications

No abstract provided.

Hampton Roads Sea Level Rise Preparedness And Resilience Intergovernmental Pilot Project. Phase 2 Report: Recommendations, Accomplishments And Lessons Learned, Emily E. Steinhilber, Maura Boswell, Carol Considine, Larry Mast

Hampton Roads Intergovernmental Pilot Project: Reports

Executive Summary

After two years, the Hampton Roads Sea level Rise and Resilience Intergovernmental Planning Pilot Project (Intergovernmental Pilot Project or IPP), convened at Old Dominion University, has come to a successful close. Although the conclusion of the project is different than originally imagined by the drafters of the IPP Charter, the process in and of itself brought hundreds of stakeholders together, built lasting and ongoing relationships, and produced many workable recommendations for the region that can be accomplished by a variety of partnerships. The key deliverables include a whole of government mitigation and adaptation planning process and an integrated …

Impact Of Upper-Tropospheric Temperature Anomalies And Vertical Wind Shear On Tropical Cyclone Evolution Using An Idealized Version Of The Operational Gfdl Hurricane Model, Robert E. Tuleya, Morris Bender, Thomas R. Knutson, Joseph R. Sirutis, Biju Thomas, Isaac Ginis

CCPO Publications

The GFDL hurricane modeling system, initiated in the 1970s, has progressed from a research tool to an operational system over four decades. This system is still in use today in research and operations, and its evolution will be briefly described. This study used an idealized version of the 2014 GFDL model to test its sensitivity across a wide range of three environmental factors that are often identified as key factors in tropical cyclone (TC) evolution: SST, atmospheric stability (upper-air thermal anomalies), and vertical wind shear (westerly through easterly). A wide range of minimum central pressure intensities resulted (905-980 hPa). The …

Coastal Groundwater Watch: A Citizen Science Project - Report No. 477, Alex Manda, Thomas Allen

Political Science & Geography Faculty Publications

The goals of this study were to utilize citizen scientists in groundwater research in a coastal community where groundwater plays a large role in sustainable water resources management, and assess the extent of groundwater and marine inundation in response to future sea-level rise scenarios. A total of 7 citizen scientists participated in the study by measuring water levels from 15 groundwater monitoring wells using water level meters once a week over a 10-week period. Automated water level loggers were deployed in three of the same wells to assess the quality of the data collected by the citizen scientists. Additional water …

Simulation And Optimization Of Ant Colony Optimization Algorithm For The Stochiastic Uncapacitated Location-Allocation Problem, Jean-Paul Arnaout, Georges Arnaout, John El Khoury

Engineering Management & Systems Engineering Faculty Publications

This study proposes a novel methodology towards using ant colony optimization (ACO) with stochastic demand. In particular, an optimizationsimulation-optimization approach is used to solve the Stochastic uncapacitated location-allocation problem with an unknown number of facilities, and an objective of minimizing the fixed and transportation costs. ACO is modeled using discrete event simulation to capture the randomness of customers’ demand, and its objective is to optimize the costs. On the other hand, the simulated ACO’s parameters are also optimized to guarantee superior solutions. This approach’s performance is evaluated by comparing its solutions to the ones obtained using deterministic data. The results …

Preface-Jes Focus Issue On Electrolysis For Increased Renewable Energy Penetration, B. Pivovar, M. Carmo, K. Ayers, X. Zhang, J. O'Brien

Mechanical & Aerospace Engineering Faculty Publications

(First paragraph) Today represents a particularly exciting time, as our planet’s energy system is undergoing major changes due to dramatically decreasing renewable energy prices and increasing societal concerns over greenhouse gas emissions, criteria pollutants (arsenic, mercury, NOx, particulate matter), and climate change. These factors are pushing society toward deep decarbonization of our energy system, perhaps the most challenging issue facing the planet today. Unfortunately, wind and solar energy, while both promising generation sources, come with intermittency challenges and have limitations in their abilities to impact industrial and transportation sector demands where fossil fuel energy carriers based on chemical bonds have …

Cartographic Potential Of New Technologies: Hu:Care, William B. Moore

September 29, 2016: Adaptive Structures and Innovative Solutions

No abstract provided.

Agenda, Hampton Roads Sea Level Rise/Flooding Adaptation Forum, Hr Adaptation Forum

September 29, 2016: Adaptive Structures and Innovative Solutions

Agenda for the Hampton Roads Sea Level Rise/Flooding Adaptation Forum on September 29, 2016 at the Hampton University Conference Room 204, the Bemis Laboratories, 713 Orchard Road, Hampton, VA.

Using Rare Earth Elements To Constrain Particulate Organic Carbon Flux In The East China Sea, Chin-Chang Hung, Ya-Feng Chen, Shih-Chieh Hsu, Kui Wang, Jianfang Chen, David J. Burdige

OES Faculty Publications

Fluxes of particulate organic carbon (POC) in the East China Sea (ECS) have been reported to decrease from the inner continental shelf towards the outer continental shelf. Recent research has shown that POC fluxes in the ECS may be overestimated due to active sediment resuspension. To better characterize the effect of sediment resuspension on particle fluxes in the ECS, rare earth elements (REEs) and organic carbon (OC) were used in separate two-member mixing models to evaluate trap-collected POC fluxes. The ratio of resuspended particles from sediments to total trap-collected particles in the ECS ranged from 82-94% using the OC mixing …

Climate Change Is The Reason We Need For Resiliency, Michael Allen

News Items

Guest editorial by Michael Allen concerning the draft of the Norfolk Vision 2100 by the Norfolk Planning Department.

Is The Detection Of Accelerated Sea Level Rise Imminent?, J. T. Fasullo, R. S. Nerem, B. Hamlington

CCPO Publications

Global mean sea level rise estimated from satellite altimetry provides a strong constraint on climate variability and change and is expected to accelerate as the rates of both ocean warming and cryospheric mass loss increase over time. In stark contrast to this expectation however, current altimeter products show the rate of sea level rise to have decreased from the first to second decades of the altimeter era. Here, a combined analysis of altimeter data and specially designed climate model simulations shows the 1991 eruption of Mt Pinatubo to likely have masked the acceleration that would have otherwise occurred. This masking …

Revisiting The Problem Of The Gulf Stream Separation: On The Representation Of Topography In Ocean Models With Different Types Of Vertical Grids, Tal Ezer

CCPO Publications

The difficulty of simulating a realistic Gulf Stream (GS) that separates from the coast at Cape Hatteras has troubled numerical ocean modelers for a long time, and the problem is evident in different models, from the early models of the 1980s to the modern models of today. The source of the problem is not completely understood yet, since GS simulations are sensitive to many different factors, such as numerical parameterization, model grid, treatment of topography and forcing fields. A curious result of early models is that models with terrain-following vertical grids (e.g., “sigma” or “s” coordinates) seem to achieve a …

A Tribute To Thomas M. Church: Exploring Chemical Oceanography In The Coastal Zone-The History And Future, Gregory A. Cutter, David J. Burdige

OES Faculty Publications

(First paragraph) One can find different historical perspectives on the development of studying the chemistry of oceans as well as names for this study—marine chemistry, chemistry of the sea, marine aquatic chemistry, marine biogeochemistry, or chemical oceanography. It could be argued that chemical oceanography is the most inclusive for an earth science since oceanography itself is an integrated discipline that links the biology, chemistry, geology, and physics together. Regardless of the name, perhaps the first intensive, modern/post-nineteenth century study of the ocean’s chemistry was the GEOSECS Program from ca. 1970–1978. The significance of GEOSECS was that it examined the chemistry …

Agenda, Hr Adaptation Forum

July 29, 2016: The Latest in Sea Level Rise Science

No abstract provided.

Risk Of Extreme Events, Don Resio

July 29, 2016: The Latest in Sea Level Rise Science

No abstract provided.

The Science Of Sea Level Rise And The Impact Of The Gulf Stream, Tal Ezer

July 29, 2016: The Latest in Sea Level Rise Science

No abstract provided.

Street Level Predictive Modeling Of Nuisance Flooding In Norfolk, Va, Jon Derek Loftis, Harry V. Wang, David R. Forrest, William 'Skip' A. Stiles

July 29, 2016: The Latest in Sea Level Rise Science

No abstract provided.

Elevation Data And Mapping Updates, Doug Marcy

July 29, 2016: The Latest in Sea Level Rise Science

No abstract provided.

Subsidence Monitoring In Hampton Roads Using Satellites, Ben Hamlington

July 29, 2016: The Latest in Sea Level Rise Science

No abstract provided.

Total Water Level And Wave Run Up Forecast, Eric Seymour

July 29, 2016: The Latest in Sea Level Rise Science

No abstract provided.

Noaa Inundation Dashboard, Audra Luscher, Paul Fanelli

July 29, 2016: The Latest in Sea Level Rise Science

No abstract provided.

Benthic Fluxes Of Dissolved Organic Carbon From Gas Hydrate Sediments In The Northern South China Sea, Chia Wei Hung, Kuo Hao Huang, Yung Yen Shih, Yu Shih Lin, Hsin Hung Chen, Chau Chang Wang, Chuang Yi Ho, Chin Chang Hung, David J. Burdige

OES Faculty Publications

Hydrocarbon vents have recently been reported to contribute considerable amounts of dissolved organic carbon (DOC) to the oceans. Many such hydrocarbon vents widely exist in the northern South China Sea (NSCS). To investigate if these hydrocarbon vent sites release DOC, we used a real-time video multiple-corer to collect bottom seawater and surface sediments at vent sites. We analyzed concentrations of DOC in these samples and estimated DOC fluxes. Elevated DOC concentrations in the porewaters were found at some sites suggesting that DOC may come from these hydrocarbon vents. Benthic fluxes of DOC from these sediments were 28 to 1264 µmol …

Steinhilber Outlines Odu's Multidisciplinary Sea Level Rise Research At Virginia Beach Forum, Brendan O'Hallarn

News Items

No abstract provided.

Experimental Energy Levels And Partition Function Of The 12c2 Molecule, Tibor Furtenbacher, István Szabó, Attila G. Császár, Peter F. Bernath, Sergei N. Yurchenko, Jonathan Tennyson

Chemistry & Biochemistry Faculty Publications

The carbon dimer, the ¹²C₂ molecule, is ubiquitous in astronomical environments. Experimental-quality rovibronic energy levels are reported for ¹²C₂, based on rovibronic transitions measured for and among its singlet, triplet, and quintet electronic states, reported in 42 publications. The determination utilizes the Measured Active Rotational-Vibrational Energy Levels (MARVEL) technique. The 23,343 transitions measured experimentally and validated within this study determine 5699 rovibronic energy levels, 1325, 4309, and 65 levels for the singlet, triplet, and quintet states investigated, respectively. The MARVEL analysis provides rovibronic energies for six singlet, six triplet, and two quintet electronic states. For …

Bunch Splitting Simulations For The Jleic Ion Collider Ring, R. Gamage, T. Satogata

Physics Faculty Publications

We describe the bunch splitting strategies for the proposed JLEIC ion collider ring at Jefferson Lab. This complex requires an unprecedented 9:6832 bunch splitting, performed in several stages. We outline the problem and current results, optimized with ESME including general parameterization of 1:2 bunch splitting for JLEIC parameters.