Preprints
Filtering by Subject: Environmental Engineering
Integration and Execution of Community Land Model Urban (CLMU) in a Containerized Environment
Published: 2024-11-27
Subjects: Civil Engineering, Computer Sciences, Earth Sciences, Environmental Engineering, Environmental Sciences
The Community Land Model Urban (CLMU) is a process-based numerical urban climate model that simulates the interactions between the atmosphere and urban surfaces, serving as a powerful tool for the convergence of urban and climate science research. Despite its advanced capabilities, CLMU presents significant challenges for users unfamiliar with numerical modeling due to the complexities of model [...]
HydroSuite-AI: Facilitating Hydrological Research with LLM-Driven Code Assistance
Published: 2024-11-26
Subjects: Civil Engineering, Computational Engineering, Computer Engineering, Environmental Engineering, Science and Mathematics Education, Systems and Communications
In the hydrology and environmental domains, researchers often encounter complex hydrological models, evolving frameworks and libraries, and complex documentation, which necessitate both domain knowledge and coding expertise. This paper introduces HydroSuite-AI, a large language model-enhanced web application designed to address these challenges by integrating three open-source libraries: [...]
Design and Implementation of an Advanced Glacier Lake Outburst Flood Early Warning System (GLOF EWS) Using LoRa IoT devices
Published: 2024-11-25
Subjects: Environmental Engineering, Geotechnical Engineering, Systems and Communications
This paper describes the creation and deployment of a Disaster Early Warning System (DEWS) designed to detect Glacial Lake Outburst Floods (GLOFs). This system is a Comprehensive Integrated dIsaster pRevention Configuration (CIIRC)that has been built to withstand sub-zero temperatures and harsh weather conditions while displaying durability and resilience. GLOFs pose a significant risk to [...]
Determination of Water Quality Beside the Industrial Area of Turag River in Dhaka, Bangladesh.
Published: 2024-11-07
Subjects: Civil and Environmental Engineering, Engineering, Environmental Engineering
The study deals with assessing water quality parameters including pH, total dissolved solids (TDS), dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), temperature, transparency, and turbidity of the Turag River in Gazipur, Bangladesh based on the standards of the Department of Environment (DoE) in Bangladesh and the Environmental Quantity Standard (EQS). The [...]
Flood Resilience Assessment of Interconnected Critical Infrastructures
Published: 2024-11-07
Subjects: Civil and Environmental Engineering, Engineering, Environmental Engineering, Environmental Sciences, Risk Analysis, Systems Engineering, Water Resource Management
Undertaking systemic risk assessments of critical infrastructures (CIs) is necessary to improve understanding, mitigate impacts, and increase resilience to cascading effects of intensifying hydrometeorological hazards. This paper presents a novel quantitative approach for simulating local physical interdependencies between multiple infrastructure sectors that may be disrupted by floods. [...]
Predicting Harmful Algal Blooms Using Ensemble Machine Learning Models and Explainable AI Technique: A Comparative Study
Published: 2024-11-01
Subjects: Engineering, Environmental Engineering
Harmful Algal Blooms (HABs), driven by environmental pollution, pose significant threats to water quality, public health, and aquatic ecosystems. This study aims to enhance the prediction of HABs in Lake Erie, part of the Great Lakes system, by utilizing ensemble machine learning (ML) models coupled with explainable artificial intelligence (XAI) for interpretability. Using water quality data from [...]
Benchmarking Greenhouse Gas Emissions from U.S. Wastewater Treatment for Targeted Reduction
Published: 2024-10-31
Subjects: Civil and Environmental Engineering, Engineering, Environmental Engineering
To assess the national climate impact of wastewater treatment and inform decarbonization, we assembled a comprehensive greenhouse gas inventory of 15,867 facilities in the contiguous United States. Considering facility location and treatment configurations, we model on-site CH4, N2O, and CO2 production, and emissions associated with energy, chemical inputs, and solids disposal. Our estimate of 42 [...]
A Simple Method for Designing Infiltration Low Impact Development Techniques Considering Effects of Urbanization and Climate Change
Published: 2024-10-12
Subjects: Civil Engineering, Environmental Engineering, Hydraulic Engineering
Infiltration-focused low-impact development (LID) solutions aim to gradually absorb surface runoff, playing a critical role in reducing both peak flow rates and runoff volumes. These systems are commonly designed with specific surface areas and controlled ponding depths to provide sufficient storage capacity that counteracts the increased runoff resulting from urban expansion. Nevertheless, [...]
Prediction of the daily spatial variation of stem water potential in cherry orchards using weather and Sentinel-2 data
Published: 2024-10-11
Subjects: Environmental Engineering, Environmental Monitoring, Environmental Sciences, Water Resource Management
The common practice for irrigation management is to apply the water lost by evapotranspiration. However, we could manage the irrigation by monitoring the plant's water status by measuring the stem water potential (Ψs), which is currently costly and time-consuming. The primary goal of this work is to predict the daily spatial variation of Ψs using machine learning models. We measured Ψs in two [...]
Predicting Harmful Algal Blooms Using Explainable Deep Learning Models: A Comparative Study
Published: 2024-09-29
Subjects: Environmental Engineering
Harmful algal blooms (HABs) have emerged as a significant environmental challenge, impacting aquatic ecosystems, drinking water supply systems, and human health due to the combined effects of human activities and climate change. This study investigates the performance of deep learning models, particularly the Transformer model, as there are limited studies exploring its effectiveness in HAB [...]
B3AM: A beamforming toolbox for three-component ambient seismic noise analysis
Published: 2024-09-20
Subjects: Earth Sciences, Environmental Engineering, Environmental Sciences, Geotechnical Engineering
We introduce the code package B3AM for beamforming of three-component ambient noise array data, which is available for MATLAB and Python. We explain the theory behind three-component beamforming and polarisation analysis in particular, provide an overview of the workflow, and discuss the output using a worked example based on the MATLAB implementation. The strength of the presented code package [...]
On weighted ensembles of streamflow: bias correct separately and prefer constrained weights for more reliable and predictable outputs
Published: 2024-08-24
Subjects: Earth Sciences, Environmental Engineering, Hydrology, Statistical Models, Water Resource Management
It has become more and more common in hydrology to consider multiple estimates of hydrological variables – ensembles – over single model runs. Ensemble members represent different realisations of various model structures, input data, and/or parametrisations. Improved predictions can be made using weighted ensembles with wide variety of model averaging methods found in the literature, but only a [...]
Uncertainty-aware sample mass determination for particle size analyses of gravel-dominated soil
Published: 2024-08-23
Subjects: Applied Statistics, Civil and Environmental Engineering, Civil Engineering, Earth Sciences, Engineering, Environmental Engineering, Environmental Monitoring, Geology, Geomorphology, Geotechnical Engineering, Hydraulic Engineering, Hydrology, Other Civil and Environmental Engineering, Other Earth Sciences, Probability, Sedimentology, Soil Science, Statistical Models, Statistics and Probability, Stratigraphy
Determining particle size distributions (PSD) of soils is a basic first step in many geotechnical analyses and guidance is given in different national standards. For ambiguous reasons, the recommended minimum sample mass (m_min) for the PSD-analyses of soils with a main component of gravel or greater is based on equations including the soil's maximum grain diameter (D_max). We claim that the [...]
HydroSignal: Open-Source Internet of Things Information Communication Platform for Hydrological Education and Outreach
Published: 2024-07-16
Subjects: Civil and Environmental Engineering, Computer Engineering, Electrical and Computer Engineering, Engineering Education, Environmental Engineering
This paper introduces HydroSignal, a low-cost, open-source platform designed to transform environmental monitoring and hydrological data visualization, making it accessible to educators, students, and the general public. By integrating internet of things (IoT) technology with a user-friendly web interface, HydroSignal enables real-time data acquisition and visualization of key hydrological [...]
Exploring coastal climate adaptation through storylines: Insights from Cyclone Idai in Beira, Mozambique
Published: 2024-06-11
Subjects: Atmospheric Sciences, Climate, Earth Sciences, Environmental Engineering, Environmental Sciences, Hydraulic Engineering, Hydrology, Meteorology, Natural Resources Management and Policy, Water Resource Management
Coastal settlements, facing increasing flood risk from Tropical Cyclones (TCs) under climate change, need local and detailed climate information for effective adaptation. Analysis of historical events and their impacts provides such information. This study uses storylines to evaluate adaptation strategies, focusing on Cyclone Idai’s impact on Beira, Mozambique, under different climate [...]