Preprints

Filtering by Subject: Hydraulic Engineering

Geo-WC: Custom Web Components for Earth Science Organizations and Agencies

Sumeyye Kaynak, Baran Kaynak, Carlos Erazo Ramirez, et al.

Published: 2024-04-17
Subjects: Civil and Environmental Engineering, Civil Engineering, Computer Engineering, Engineering Education, Hydraulic Engineering

The development of web technologies and their integration into various fields has allowed a new era in data-driven decision-making and public information accessibility, especially through their adoption of monitoring and quantification environmental data resources provided by governmental institutions. While the use of web technologies has given way to the creation of democratized applications, [...]

On the economic feasibility of tidal range power plants

Konstantinos Pappas, Nguyen Quang Chien, Ilias Zilakos, et al.

Published: 2023-12-17
Subjects: Civil and Environmental Engineering, Computational Engineering, Engineering, Environmental Engineering, Hydraulic Engineering

The wave potential energy associated with tides presents a promising sustainable energy resource. Uncertainties on the economic case of tidal range power plants are a known bottleneck hindering the development of the industry. Significant costs depend on each design's general arrangement, which includes both mechanical components and the associated civil works. Research on tidal range structures [...]

MultiRS Flood Mapper: A Google Earth Engine Application for Water Extent Mapping with Multimodal Remote Sensing and Quantile-Based Postprocessing

Zhouyayan Li, Ibrahim Demir

Published: 2023-12-11
Subjects: Engineering, Geotechnical Engineering, Hydraulic Engineering

Remote Sensing (RS) imagery is an important data source in surface water mapping applications thanks to its high spatial and temporal consistency and scalability. The introduction of Google Earth Engine (GEE) has cleared some of the major barriers of fast and large-scale RS-based geospatial analyses by providing easy and open access to most of the commonly used RS image products as well as [...]

Advancing Regional Flood Mapping in a Changing Climate: A HAND-Based Approach for New Jersey with Innovations in Catchment Analysis

David Bazzett, Ruo-Qian Wang, Lucas Marxen

Published: 2023-11-03
Subjects: Civil Engineering, Environmental Engineering, Hydraulic Engineering, Hydrology

Regional flood mapping poses computational and spatial heterogeneity challenges, exacerbated by climate change-induced uncertainties. This study focuses on creating a state-wide flood mapping solution with enhanced accuracy and computational speed to support regional flooding hazard analysis and the assessment of climate change, using New Jersey as a case study. The Height Above Nearest Drainage [...]

Mapping the Landscape of Water and Society Research: Promising Combinations of Compatible and Complementary Disciplines

Marc F Müller, Maria Rusca, Leonardo Bertassello, et al.

Published: 2023-10-14
Subjects: Environmental Education, Environmental Engineering, Environmental Studies, Geographic Information Sciences, Human Geography, Hydraulic Engineering, Hydrology, Natural Resource Economics, Natural Resources Management and Policy, Physical and Environmental Geography, Spatial Science, Sustainability, Water Resource Management

Coupled human-water systems (CHWS) are diverse and have been studied across a wide variety of disciplines. Integrating multiple disciplinary perspectives on CHWS provides a comprehensive and actionable understanding of these complex systems. While interdisciplinary integration has often remained elusive, specific combinations of disciplines might be comparably easier to integrate (compatible) [...]

Enhancing Hydrological Modeling with Transformers: A Case Study for 24-Hour Streamflow Prediction

Bekir Zahit Demiray, Muhammed Sit, Omer Mermer, et al.

Published: 2023-09-13
Subjects: Environmental Engineering, Hydraulic Engineering

In this paper, we address the critical task of 24-hour streamflow forecasting using advanced deep-learning models, with a primary focus on the Transformer architecture which has seen limited application in this specific task. We compare the performance of five different models, including Persistence, LSTM, Seq2Seq, GRU, and Transformer, across four distinct regions. The evaluation is based on [...]

FloodGame: An Interactive 3D Serious Game on Flood Mitigation for Disaster Awareness and Education

Bekir Zahit Demiray, Yusuf Sermet, Enes Yildirim, et al.

Published: 2023-09-09
Subjects: Environmental Engineering, Hydraulic Engineering, Risk Analysis, Science and Mathematics Education

The number and devastating impacts of natural disasters have grown significantly worldwide, and floods are one of the most dangerous and frequent natural disasters. Recent studies emphasize the importance of public awareness in disaster preparedness and response activities. FloodGame is designed as a web-based interactive serious game geared towards educating K-12 and college students and raising [...]

Flood sequence mapping with multimodal remote sensing under the influence of dense vegetation

Zhouyayan Li, Ibrahim Demir

Published: 2023-06-13
Subjects: Civil and Environmental Engineering, Civil Engineering, Hydraulic Engineering

Remote sensing (RS) imagery is becoming increasingly popular in surface water extent extraction thanks to the increasing availability of RS data and advancements in image processing algorithms, software, and hardware. Many studies proved that RS imagery can work independently or along with other approaches to identify flood extent. However, due to the insufficiency in the number of images from [...]

Better Localized Predictions with Out-of-Scope Information and Explainable AI: One-Shot SAR Backscatter Nowcast Framework with Data from Neighboring Region

Zhouyayan Li, Ibrahim Demir

Published: 2023-06-10
Subjects: Civil Engineering, Engineering, Geotechnical Engineering, Hydraulic Engineering

Synthetic Aperture Radar (SAR) provides 10-m weather-independent global Earth surface observations for various tasks such as land cover land use mapping, water body delineation, and vegetation change monitoring. However, the application of SAR imagery has been limited to retrospective tasks by a “first event then observation” rule. Recent studies have proven the feasibility of a one-shot forecast [...]

The Asymmetric Distribution of Rainfall Frequency and Amounts in India

Yash Gupta, Manabendra Saharia, Bhupendranath Goswami

Published: 2022-09-29
Subjects: Civil and Environmental Engineering, Hydraulic Engineering

Studies of rainfall are usually based on the total amount precipitating throughout a certain period. Compared to rain rates associated with extreme events, the rain rates associated with periods when most of the rainfall occur are not studied extensively. In this study, the characteristics of daily precipitation in India are explored using two metrics - rain frequency peak (the most frequent [...]

A Simple Framework for Calibrating Hydraulic Flood Inundation Models using Crowd-sourced Water Levels

Antara Dasgupta, Stefania Grimaldi, RAAJ Ramsankaran, et al.

Published: 2022-08-24
Subjects: Civil Engineering, Fluid Dynamics, Hydraulic Engineering, Hydrology, Water Resource Management

Floods are the most commonly occurring natural disaster, with the Centre for Research on the Epidemiology of Disasters 2021 report on “The Non-COVID Year in Disasters” estimating economic losses worth over USD 51 million and over 6000 fatalities in 2020. The hydrodynamic models which are used for flood forecasting need to be evaluated and constrained using observations of water depth and extent. [...]

Interactive Hydrological Modelling and Simulation on Client-Side Web Systems: An Educational Case Study

Gregory James Ewing, Ricardo Mantilla, Witold F. Krajewski, et al.

Published: 2022-04-14
Subjects: Civil and Environmental Engineering, Earth Sciences, Education, Engineering, Engineering Education, Environmental Education, Environmental Engineering, Hydraulic Engineering, Hydrology, Numerical Analysis and Scientific Computing, Other Civil and Environmental Engineering, Physical Sciences and Mathematics, Science and Mathematics Education, Water Resource Management

Computational hydrological models and simulations are fundamental pieces of the workflow of contemporary hydroscience research, education, and professional engineering activities. In support of hydrological modelling efforts, web-enabled tools for data processing, storage, computation, and visualization have proliferated. Most of these efforts rely on server resources for computation and data [...]

Evaluating essential features of proppant transport at engineering scales combining field measurements with machine learning algorithms

Xiaoyu Wang, Lei Hou, Xueyu Geng, et al.

Published: 2021-12-06
Subjects: Civil and Environmental Engineering, Earth Sciences, Engineering, Environmental Sciences, Geology, Hydraulic Engineering, Oil, Gas, and Energy, Sustainability

The characterization of the proppant transport at a field-engineering scale is still challenging due to the lack of direct subsurface measurements. Features that control the proppant transport may link the experimental and numerical observations to the practical operations at a field scale. To improve the numerical and laboratory simulations, we propose a machine-learning-based workflow to [...]

Combining shallow-water and analytical wake models for tidal array micro-siting

Connor Jordan, Davor Dundovic, Anastasia K. Fragkou, et al.

Published: 2021-07-30
Subjects: Civil and Environmental Engineering, Civil Engineering, Engineering, Hydraulic Engineering, Oceanography

For tidal-stream energy to become a competitive renewable energy source, clustering multiple turbines into arrays is paramount. As a result, array optimisation is critical for achieving maximum power performance and reducing cost of energy. However, ascertaining an optimal array layout is a highly complex problem, subject to specific site hydrodynamics and multiple inter-disciplinary [...]

Phosphorus Retention in Lakes: A Critical Reassessment of Hypotheses and Static Models

Hamed Khorasani, Zhenduo Zhu

Published: 2021-06-24
Subjects: Engineering, Environmental Engineering, Hydraulic Engineering, Hydrology, Water Resource Management

Various hypotheses and models for phosphorus (P) retention in lakes are reviewed and 39 predictive models are assessed in three categories, namely mechanistic, semi-mechanistic, and strictly-empirical models. A large database consisting of 738 data points is gathered for the analyses. Assessing four pairs of competing hypotheses used in mechanistic models, we found that (i) simulating lakes as [...]

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