Preprints
Filtering by Subject: Other Civil and Environmental Engineering
Quantifying hydropower flexibility during extreme temperature events
Published: 2026-04-20
Subjects: Computational Engineering, Environmental Engineering, Hydraulic Engineering, Hydrology, Other Civil and Environmental Engineering, Other Mathematics, Power and Energy, Systems Engineering
Extreme weather events can impose substantial stress on the electrical grid. Hydropower offers unique operational flexibility, enhancing grid resilience and reliability. Despite this value of flexibility, systematic assessments of hydropower flexibility -- particularly during extreme events -- remain limited. This study is the first to quantify hydropower operational flexibility using 25 years' [...]
Geological controls on Underground Hydrogen Storage in depleted gas fields
Published: 2026-03-27
Subjects: Earth Sciences, Environmental Sciences, Geology, Oil, Gas, and Energy, Other Civil and Environmental Engineering, Sustainability
The geological storage of hydrogen is an alternative for large-scale energy storage in support of expanding renewable energy systems. The North Sea has hundreds of depleted gas fields that are potential storage sites. Robust screening procedures are necessary to select the most suitable reservoirs in terms of geology. This study investigates the geological controls on hydrogen storage in depleted [...]
Spontaneous liquefaction in saturated granular deposits: State controlled boundary and surface reconfiguration
Published: 2026-01-26
Subjects: Civil and Environmental Engineering, Civil Engineering, Earth Sciences, Engineering, Engineering Science and Materials, Environmental Engineering, Environmental Sciences, Geotechnical Engineering, Hydraulic Engineering, Mechanics of Materials, Mining Engineering, Other Civil and Environmental Engineering, Physical Sciences and Mathematics, Risk Analysis
In the case of water-saturated, granular deposits that are at risk of liquefaction, engineers need reliable information about the spatial extent of soil deformation in the event of liquefaction. It is not so important for them to know the exact location of the first failure. However, existing anal-yses primarily deal with the triggering of liquefaction and offer only limited information on how [...]
Spatiotemporal connections in high precipitation events in Iran: Application of complex networks
Published: 2025-11-29
Subjects: Environmental Education, Environmental Engineering, Environmental Studies, Hydraulic Engineering, Hydrology, Other Civil and Environmental Engineering, Remote Sensing, Spatial Science, Water Resource Management
Study region A relatively large area covering east and west Asia, north Africa, and Europe. Study focus This study examines the complex correlation patterns of high precipitation events in Iran and the rest of the study region. For this purpose, the Complex Networks Theory is used to find the links between high precipitation events in Iran and the rest of the study area with different time lags. [...]
A Critical Review of Nature-Based Solutions for Enhancing Climate Resilience and Water Security in Mountain Ecosystems
Published: 2025-09-23
Subjects: Civil and Environmental Engineering, Engineering, Hydraulic Engineering, Other Civil and Environmental Engineering
Mountain ecosystems, functioning as indispensable "water towers," face escalating threats from climate change, land degradation, and water insecurity, jeopardizing the livelihoods of downstream populations. This paper presents a comprehensive critical review of integrated strategies designed to enhance the resilience of these vital socio-ecological systems. It synthesizes the theoretical [...]
Detection of coastal flooding with TinyCamML: a low-cost, privacy-preserving cellular-connected camera with onboard ML
Published: 2025-09-18
Subjects: Environmental Monitoring, Other Civil and Environmental Engineering, Other Oceanography and Atmospheric Sciences and Meteorology, Systems and Communications
Chronic flooding is an issue for low-lying coastal communities globally, and it is expected to worsen with rising sea levels. In contrast to floods driven by extreme storms, predicting when and where these floods occur can be difficult as they can be hyper-local and short-lived, depending on the flood drivers (e.g., tides, rain). These factors make it difficult to measure the full spatial and [...]
Spatiotemporal Urban Flood Expansion and Propagation by Percentage of Node in Flood Assessment (PNFA)
Published: 2025-09-18
Subjects: Environmental Engineering, Hydraulic Engineering, Other Civil and Environmental Engineering
Urban pluvial flooding is a complex process shaped by rainfall intensity, drainage system capacity, and urban infrastructure. While previous studies have mapped flood extents, the spatiotemporal evolution of drainage saturation and overflow propagation remain insufficiently explored. This study introduces the Percentage of Node in Flood Assessment (PNFA), integrating the Flood Expansion Rate [...]
DOZER: a toy model of coastal hazard mitigation during a storm
Published: 2025-09-17
Subjects: Dynamical Systems, Geomorphology, Nature and Society Relations, Other Civil and Environmental Engineering, Other Environmental Sciences, Physical and Environmental Geography, Science and Mathematics Education, Sustainability
Motivated by observations of emergency road-maintenance crews in coastal settings, DOZER is a video game in which the player uses a bulldozer to clear sand from a beachfront road during a storm. DOZER is also a toy model in a formal sense: a heuristic tool for insight into the dynamics of real-time intervention in the physical processes of a natural hazard. Here, I introduce DOZER as both a game [...]
A comprehensive calibration framework for the Northwest River Forecast Center
Published: 2025-04-19
Subjects: Civil Engineering, Hydrology, Other Civil and Environmental Engineering
We present a comprehensive framework developed by the Northwest River Forecast Center for calibrating hydrologically diverse basins. The framework includes models for snow, soil moisture, routing, channel loss, and consumptive use. Data inputs include a wide range of open-access datasets for meteorology, land use, topography, and land cover. The framework uses conceptual hydrologic models to [...]
Cyclone Evacuation Route Identification Using ArcGIS, and recommended new cyclone shelter in Koyra Upazila, Khulna, Bangladesh.
Published: 2024-11-03
Subjects: Civil and Environmental Engineering, Engineering, Other Civil and Environmental Engineering
Evacuation is a critical preparedness measure to safeguard people from the severe impacts of cyclones. Selecting the right evacuation route is vital for an effective evacuation during cyclones. In our study, we utilized Geographic Information System to plan evacuation routes for Koyra upazila in Khulna, Bangladesh, and to establish an evacuation route using shortest distance analysis. The aim is [...]
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 [...]
Groundwaterscapes: A global classification and mapping of groundwater’s large-scale socioeconomic, ecological, and Earth system functions
Published: 2023-09-20
Subjects: Hydrology, Other Civil and Environmental Engineering, Physical and Environmental Geography, Spatial Science, Sustainability, Water Resource Management
Groundwater is a dynamic component of the global water cycle with important social, economic, ecological, and Earth system functions. We present a new global classification and mapping of groundwater systems, which we call groundwaterscapes, that represent predominant configurations of large-scale groundwater system functions. We identify 18 groundwaterscapes, which offer a new lens to [...]
FIND: A Synthetic weather generator to control drought Frequency, Intensity, and Duration
Published: 2023-08-04
Subjects: Engineering, Other Civil and Environmental Engineering
Water systems worldwide are experiencing climate change-induced shifts in drought properties like frequency, intensity, and duration, affecting water security and reliability. To develop and test effective drought preparedness plans, researchers often use synthetic weather generators to create hydrological scenarios that explore drought variability beyond historical records. Existing weather [...]
Single-blind test of nine methane-sensing satellite systems from three continents
Published: 2023-06-28
Subjects: Atmospheric Sciences, Other Civil and Environmental Engineering
Satellite-based remote sensing enables detection and mitigation of large point sources of climate-warming methane. These satellites will have the greatest impact if stakeholders have a clear-eyed assessment of their capabilities. We performed a single-blind test of nine methane-sensing satellites from three continents and five countries, including both commercial and government satellites. Over [...]
Data, knowledge and modeling challenges for science-informed management of river deltas
Published: 2023-03-16
Subjects: Environmental Engineering, Environmental Sciences, Natural Resources and Conservation, Natural Resources Management and Policy, Other Civil and Environmental Engineering, Other Environmental Sciences, Sustainability, Water Resource Management
450 million people live on river deltas and thus on land that is precariously low above the sea level and sinking because of human activities and natural processes. Although global debates around coastal risk typically focus on sea level rise, it is sinking lands and rising seas that together endanger lives and livelihoods in river deltas. However, the ability to quantify and address those risks [...]