Preprints
Filtering by Subject: Hydrology
Changes in water age during dry-down of a non-perennial stream
Published: 2023-02-10
Subjects: Hydrology
Non-perennial streams, which lack year-round flow, are widespread globally. Identifying the sources of water that sustain flow in non-perennial streams is necessary to understand their potential impacts on downstream water resources, and guide water policy and management. Here, we used water isotopes (δ18O and δ2H) and two different modeling approaches to investigate the spatiotemporal dynamics [...]
Soil moisture modulation of midlatitude heat waves
Published: 2023-02-10
Subjects: Atmospheric Sciences, Climate, Earth Sciences, Hydrology, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics
Heat waves are broadly expected to increase in severity and frequency under climate change. Case studies highlight a number of physical mechanisms that play a role in present-day heat waves, which typically occur during a coalescence of anomalous atmospheric and land surface conditions. However, a unified model of heat wave physics is lacking, primarily owing to difficulty in disentangling the [...]
Comparing Well and Geophysical Data for Temperature Monitoring within a Bayesian Experimental Design Framework
Published: 2023-01-24
Subjects: Earth Sciences, Hydrology, Physical Sciences and Mathematics, Water Resource Management
Temperature logs are an important tool in the geothermal industry. Temperature measurements from boreholes are used for exploration, system design, and monitoring. The number of observations, however, is not always sufficient to fully determine the temperature field or explore the entire parameter space of interest. Drilling in the best locations is still difficult and expensive. It is therefore [...]
Dynamic rainfall thresholds for landslide early warning in Progo Catchment, Java, Indonesia
Published: 2023-01-20
Subjects: Applied Statistics, Earth Sciences, Geomorphology, Hydrology, Meteorology
This study aims to derive and evaluate new empirical rainfall thresholds as the basis for landslide early warning in Progo Catchment, Indonesia, using high-resolution rainfall datasets. Although attempts have been made to determine such thresholds for regions in Indonesia, they used coarse-resolution data and fixed rainfall duration that might not reflect the characteristics of rainfall events [...]
STICr: An open-source package and workflow for processing and analyzing data from Stream Temperature, Intermittency, and Conductivity (STIC) loggers
Published: 2023-01-13
Subjects: Hydrology
Non-perennial streams constitute over half the world’s stream miles, and require hydrologic characterization to understand their flow regimes and impacts on ecosystems and society. Stream Temperature, Intermittency, and Conductivity (STIC) loggers are a widely used tool for studying non-perennial streams because they provide a relatively inexpensive and robust method for characterizing flow [...]
Improving Shoreline Forecasting Models with Multi-Objective Genetic Programming
Published: 2023-01-10
Subjects: Artificial Intelligence and Robotics, Climate, Environmental Engineering, Environmental Monitoring, Geomorphology, Hydrology, Numerical Analysis and Scientific Computing, Oceanography, Sedimentology, Statistical Models
Given the current context of climate change and increasing population densities at coastal zones, there is an increasing need to be able to predict the development of our coasts. Recent advances in artificial intelligence allow for automatic analysis of observational data. This work makes use of Symbolic Regression, a type of Machine Learning algorithm, to evolve interpretable shoreline [...]
Shyft and Rasputin: a toolbox for hydrologic simulations on triangular irregular networks
Published: 2023-01-07
Subjects: Hydrology
Terrain topography controls insolation variations at catchment scale. This effects are known to be important in cold and mountainous regions due to high diurnal and seasonal variability in incoming radiation. However, meteorological data in such areas lacks accuracy due to sparse station network and coarse re-analysis grids. Simulation tools that model hydrologic processes at local scales require [...]
Blockchain Applications and Opportunities for Water Resources and Hydrology: A Systematic Review
Published: 2022-12-31
Subjects: Databases and Information Systems, Hydrology
Although blockchain technology was first applied for peer-to-peer financial transactions, it has been used for the digitalization of physical asset management and data management processes in many areas in the industry and academia, including the water domain. Its potential as an immutable data storage system and smart contract integration has provided a plethora of use cases and utility in the [...]
Uncertainties in Water Scarcity Index due to water use and climate changes: Case of two Legal Amazon watersheds
Published: 2022-12-23
Subjects: Earth Sciences, Hydrology, Physical Sciences and Mathematics, Sustainability, Water Resource Management
Water scarcity is a major global problem with the potential to impact socioeconomic development and the environment. Currently, mitigating issues related to the lack of water has become an aim for the public and private sectors. Water scarcity can be estimated by the ratio between water use (withdrawal or consumption) and water availability (a minimum discharge), named Water Stress Index (WSI). [...]
The Dry Sky: Futures for Humanity’s Modification of the Atmospheric Water Cycle
Published: 2022-12-21
Subjects: Atmospheric Sciences, Climate, Fresh Water Studies, Hydrology, Meteorology, Natural Resource Economics, Natural Resources Management and Policy, Nature and Society Relations, Sustainability, Water Resource Management
Humanity is modifying the atmospheric water cycle, via land use, climate change, air pollution, and weather modification. Given the implications of this, we present a theoretical framing of atmospheric water as an economic good. Historically, atmospheric water was tacitly considered a ‘public good’ since it was neither actively consumed (rival) nor controlled (exclusive). However, given [...]
Quantification of the impact of acidified brine on fracture-matrix transport in a naturally fractured shale using in situ imaging and modeling
Published: 2022-12-07
Subjects: Geotechnical Engineering, Hydrology
Understanding flow, transport, chemical reactions, and hydro-mechanical processes in fractured geologic materials is key for optimizing a range of subsurface processes including carbon dioxide and hydrogen storage, unconventional energy resource extraction, and geothermal energy recovery. Flow and transport processes in naturally fractured shale rocks have been challenging to characterize due to [...]
Modeling Earthquake-induced Landslide initiation using the Fibre Bundle Model
Published: 2022-12-05
Subjects: Geology, Geomorphology, Geophysics and Seismology, Hydrology
Co-seismic landslides are triggered by strong ground shaking in mountainous areas, resulting in threats to human activity and infrastructure. Methods for physically-based modelling of co-seismic landslide triggering play an important role in disaster prevention and mitigation. Current approaches, however, focus on direct and full failure of sloping rocks and soils, and do not cover the dynamics [...]
A breakthrough in fast flood simulation
Published: 2022-12-05
Subjects: Fluid Dynamics, Hydrology
The current status of technological advancement does not allow to generate complete flood simulations in real-time for large geographic areas. This hinders warning-systems, interactive planning tools and detailed forecasts and as a consequence the population cannot be quickly or reliably informed of where large masses of water will flow. Our novel method computes flood hazard maps over three [...]
A Systematic Review of Deep Learning Applications in Interpolation and Extrapolation of Precipitation Data
Published: 2022-11-17
Subjects: Earth Sciences, Hydrology, Meteorology
With technological enhancements, the volume, velocity, and variety (3Vs) of the raw digital Earth data have increased in recent years. Due to the increased availability of computer resources and the growing popularity of deep learning applications, this data has been a crucial source for data-driven studies that have transformed the fields of climate and earth science. One of the critical data [...]
Contemporary and historical detection of small lakes using cross-sensor super resolution Landsat imagery
Published: 2022-11-17
Subjects: Artificial Intelligence and Robotics, Environmental Monitoring, Hydrology
Landsat is the longest-running environmental satellite program and has been used for surface water mapping of large water bodies since its launch in 1972. Remote sensing image resolution is increasingly being enhanced through single image super resolution (SR), a machine learning task typically performed by neural networks. Here, we show that a 10x SR model (Enhanced Super Resolution GAN, or [...]