Preprints

Filtering by Subject: Civil and Environmental Engineering

Global climate-driven trade-offs between the water retention and cooling benefits of urban greening

Mark Cuthbert, Gabriel Rau, Adam Bates, Marie Ekstrom, Denis O'Carroll

Published: 2021-02-24
Subjects: Civil and Environmental Engineering, Construction Engineering and Management, Earth Sciences, Engineering, Environmental Engineering, Environmental Health and Protection, Environmental Sciences, Hydrology, Physical Sciences and Mathematics, Sustainability, Water Resource Management

Heat-related mortality and flooding are pressing challenges for the >4 billion urban population worldwide, exacerbated by increasing urbanization and climate change. Urban greening, such as green roofs and parks, can potentially help address both problems, but the geographical variation of the relative hydrological and thermal performance benefits of such interventions are unknown. Here we [...]

Stranded methane to food: techno-economic analysis of methanotrophic protein production

Sahar Head El Abbadi, Evan D Sherwin, Adam R Brandt, Stephen P. Luby, Craig S. Criddle

Published: 2021-02-23
Subjects: Bioresource and Agricultural Engineering, Civil and Environmental Engineering, Engineering, Environmental Engineering

Methane is emitted and flared from industrial sources across the United States, contributing to global climate change. This need not be the case. Methanotrophic (methane-oxidizing) bacteria can transform methane into useful protein-rich biomass (e.g., to replace fishmeal in animal feeds). Here, we analyze the economic potential of producing methanotrophic microbial protein from methane emitted [...]

Real-time Flood Mapping on Client-side Web Systems using HAND model

Anson Hu, Ibrahim Demir

Published: 2021-02-19
Subjects: Civil and Environmental Engineering, Computational Engineering, Engineering

The height above nearest drainage (HAND) model is frequently used to calculate properties of the soil as well as predict flood inundation extents. HAND is extremely useful due to its lack of reliance on prior data, as only the digital elevation model (DEM) is needed. It is close to optimal, running in linear or linearithmic time in the number of cells depending on the values of the heights. It [...]

Numerical modeling of Earth's dynamic surface: a community approach

Gregory E Tucker, Eric Hutton, Mark Piper, Benjamin Campforts, Tian Gan, Katherine R Barnhart, Albert Kettner, Irina Overeem, Scott D Peckham, Lynn McCready, Jaia Syvitski

Published: 2021-02-14
Subjects: Civil and Environmental Engineering, Computer Sciences, Earth Sciences, Engineering, Environmental Engineering, Environmental Sciences, Geology, Geomorphology, Glaciology, Hydrology, Numerical Analysis and Scientific Computing, Other Environmental Sciences, Physical Sciences and Mathematics, Sedimentology, Soil Science, Stratigraphy

Computational modelling occupies a unique niche in Earth environmental sciences. Models serve not just as scientific technology and infrastructure, but also as digital containers of the scientific community's understanding of the natural world. As this understanding improves, so too must the associated software. This dual nature---models as both infrastructure and hypotheses---means that [...]

Upper Mississippi River Flow and Sediment Characteristics and Their Effect on a Harbor Siltation Case

Roberto Fernández, Marcelo H Garcia, Gary Parker

Published: 2021-01-28
Subjects: Civil and Environmental Engineering, Civil Engineering, Earth Sciences, Engineering, Geomorphology, Hydraulic Engineering, Physical Sciences and Mathematics, Sedimentology

Upper Mississippi River flow and sediment characteristics downstream of St. Louis are presented in this study. Available and measured data were used to assess a harbor siltation case and dredging needs. Such data are also useful to researchers and engineers conducting work in the Mississippi River and large rivers in general. Flows were characterized in terms of the mean annual hydrograph, flow [...]

Determination of vulnerability areas from the simulated deposition of atmospheric pollutants using LOTOS-EUROS chemical transport model in North-West South-America

Andres Yarce Botero, Santiago Lopez-Restrepo, Arjo Segers, O. Lucia Quintero, Arnold W. Heemink, Nicolas Pinel

Published: 2021-01-06
Subjects: Applied Mathematics, Bioresource and Agricultural Engineering, Civil and Environmental Engineering, Computer Sciences, Engineering, Physical Sciences and Mathematics, Planetary Sciences

This work presents the implementation of the LOTOS-EUROS regional atmospheric Chemical Transport Model (CTM) on Northwestern South America. The impact of land use and orography update in the model was analyzed to identify potential vulnerable natural areas by quantifying atmospheric deposition pollutants. CTMs allow simulating the physical dynamics of trace gasses and aerosols, including [...]

Future magnitude 7.5 earthquake offshore Martinique: Spotlight on major source-related factors of ground-motion variability

Elif Oral, Claudio Satriano

Published: 2020-11-18
Subjects: Civil and Environmental Engineering, Geophysics and Seismology, Geotechnical Engineering

The eastern offshore of Martinique is one of the active areas of the Lesser Antilles Subduc tion Zone (LASZ). Although its seismicity is moderate compared to other subduction zones, LASZ is capable of generating a M 7+ interplate earthquake and recent studies and historical events, such as the M8 1839 and M 7-7.5 1946 earthquakes, confirm this possibility. Given the high risk that Martinique can [...]

India Flood Inventory: Creation of a multi-source national geospatial database to facilitate comprehensive flood research

Manabendra Saharia, Avish Jain, Ronit Raj Baishya, Saagar Haobam, O. P. Sreejith, D. S. Pai, Arezoo RafieeiNasab

Published: 2020-10-25
Subjects: Civil and Environmental Engineering, Hydraulic Engineering

Floods are one of the most devastating natural hazards across the world, with India being one of the worst affected countries in terms of fatalities and economic damage. In-depth research is required in order to understand the complex hydrometeorological and geomorphic factors at play and design solutions to minimize the impact of floods. But the existence of a historical inventory of floods is [...]

An Integrated Flood Risk Assessment and Mitigation Framework: Middle Cedar River Basin Case Study

Enes Yildirim, Ibrahim Demir

Published: 2020-08-20
Subjects: Civil and Environmental Engineering, Earth Sciences, Engineering, Environmental Sciences, Physical Sciences and Mathematics, Water Resource Management

Property buyout is one of the most frequently preferred flood mitigation applications by decision-makers for long-term risk reduction. Due to its high-level funding requirements as a mitigation solution, it requires extensive benefits and costs analysis for the selected region. Many communities in the State of Iowa experienced flood events (i.e. 1993, 2008, 2014, 2019) which resulted in a heavy [...]

A data-driven approach for characterizing community scale air pollution exposure disparities in inland Southern California

Khanh Do, Haofei Yu, Jasmin Velasquez, Marilyn Grell-Brisk, Heather Smith, Cesunica Ivey

Published: 2020-08-16
Subjects: Civil and Environmental Engineering, Engineering, Environmental Engineering

This study elucidates PM2.5 exposure disparities in a socioeconomically diverse air basin that is heavily burdened by air pollution. A novel spatial clustering approach is applied to classify the microenvironments of more than 900,000 high temporal resolution personal exposure data points. Results from the study indicate that participants from the lowest socioeconomic status community experienced [...]

Wayfinding and Accessibility Analysis for Critical Amenities in Iowa During Flood Events

Yazeed Alabbad, Jerry Mount, Ann Melissa Campbell, Ibrahim Demir

Published: 2020-08-16
Subjects: Civil and Environmental Engineering, Civil Engineering, Engineering, Environmental Engineering, Hydraulic Engineering, Other Civil and Environmental Engineering, Risk Analysis, Transportation Engineering

Transportation infrastructure plays an essential role in flood response and recovery. However, flooding may disturb road functionality and generate direct and indirect adverse impacts, including the loss of access to essential services. This paper presents a comprehensive analysis of flood impacts on road network topology and accessibility to amenities for major communities in the State of Iowa [...]

A Comprehensive Flood Event Specification and Inventory: 1930-2020 Turkey Case Study

Ismail Haltas, Enes Yildirim, Fatih Oztas, Ibrahim Demir

Published: 2020-08-16
Subjects: Civil and Environmental Engineering, Earth Sciences, Engineering, Environmental Sciences, Physical Sciences and Mathematics, Water Resource Management

Flooding is one of the most frequent natural disasters that have significant impact on communities in terms of loss of life, direct and indirect economic losses, and disruption of daily life. Decision makers often consult flood data inventories to make more informed decisions on the development of flood mitigation plans to protect flood prone communities. A comprehensive inventory that covers [...]

Web-based Data Analytics Framework for Well Forecasting and Groundwater Quality

Muhammed Ali Sit, Richard J. Langel, Darrin Thompson, David M. Cwiertny, Ibrahim Demir

Published: 2020-08-16
Subjects: Civil and Environmental Engineering, Engineering, Environmental Engineering, Hydraulic Engineering

Groundwater supplies drinking water for over one-third of all Americans. However, with aquifers stressed by overdraft, contamination from land use, and the hydrologic impacts of climate change, identifying reliable sources for new wells is increasingly challenging. Well forecasting is a process in which potential groundwater resources are evaluated for a location of interest. While this process [...]

GeospatialVR: A Web-based Virtual Reality Framework for Collaborative Environmental Simulations

Yusuf Sermet, Ibrahim Demir

Published: 2020-08-08
Subjects: Civil and Environmental Engineering, Computer Sciences, Databases and Information Systems, Engineering, Environmental Engineering, Environmental Indicators and Impact Assessment, Environmental Monitoring, Environmental Sciences, Graphics and Human Computer Interfaces, Physical Sciences and Mathematics

This research introduces GeospatialVR, an open-source collaborative virtual reality framework to dynamically create 3D real-world environments that can be served on any web platform and accessed via desktop and mobile devices and virtual reality headsets. The framework can generate realistic simulations of desired locations entailing the terrain, elevation model, infrastructures, dynamic [...]

Serious Gaming for Water Resources Planning and Hazard Mitigation

Aarin Teague, Yusuf Sermet, Ibrahim Demir, Marian Muste

Published: 2020-08-03
Subjects: Civil and Environmental Engineering, Earth Sciences, Engineering, Environmental Education, Environmental Engineering, Environmental Sciences, Hydrology, Physical Sciences and Mathematics, Sustainability, Water Resource Management

Hydrological hazards lead to a broad range of socio-economic and environmental risks. The development of a resilient community and risk reduction heavily rely on the adoption of holistic watershed master planning whereby the adaptation options consider the risk associated with individual or multiple hydrological hazards occurring simultaneously at a specific location. Such planning approaches [...]

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