Filtering by Subject: Hydrology

Stream Thermalscape Scenarios for British Columbia, Canada

J. Daniel Weller, R.D. (Dan) Moore, Josephine C. Iacarella

Published: 2023-03-22
Subjects: Fresh Water Studies, Hydrology, Natural Resources and Conservation, Water Resource Management

Water temperature is a key feature of freshwater ecosystems but comprehensive datasets are severely lacking, a limiting factor in research and management of freshwater species and habitats. An existing statistical stream temperature model developed for British Columbia, Canada, was refit to predict August mean stream temperatures, a common index of stream thermal regime also used in thermalscapes [...]

Large variation in Mekong river plastic transport between wet and dry season

Tim van Emmerik, Louise Schreyers, Yvette Mellink, et al.

Published: 2023-02-27
Subjects: Earth Sciences, Environmental Monitoring, Environmental Sciences, Hydrology, Water Resource Management

Plastic pollution in rivers is of increased global concern. Rivers act both as pathways for land-based plastic waste into the ocean, and as plastic reservoirs for long-term retention. Reliable observations are key to designing, optimizing and evaluating strategies to prevent and reduce plastic pollution. Several measurement methods have been developed to quantify macroplastic ($>$0.5 cm) storage [...]

Extrapolation based regionalized re-evaluation of the global estuarine surface area

Goulven Gildas Laruelle, Judith A. Rosentreter, Pierre Regnier

Published: 2023-02-24
Subjects: Biogeochemistry, Earth Sciences, Geomorphology, Hydrology

At the interface between the continental and oceanic domains, estuaries are essential components of the land-ocean aquatic continuum that play a significant role in biogeochemical cycles, as they transform and export large amounts of carbon and nutrients from rivers to coastal waters. Because of this intense biogeochemical processing, they are significant ecosystems in terms of greenhouse gas [...]

Global accessibility of groundwater remains highly uncertain

Robert Reinecke, Sebastian Gnann, Lina Stein, et al.

Published: 2023-02-11
Subjects: Geology, Hydrology, Sustainability, Water Resource Management

Groundwater is essential for maintaining healthy ecosystems and securing human access to freshwater. Here we show that current estimates of global groundwater accessibility by ecosystems and humans are highly uncertain. To quantify this uncertainty, we define three categories of accessibility and investigate four global groundwater models. Averaged across these models, we estimate that 23% [most [...]

Changes in water age and source during dry-down of a non-perennial stream

Logan Swenson, Sam Zipper, Delaney M. Peterson, et al.

Published: 2023-02-10
Subjects: Hydrology

Non-perennial streams, which lack year-round flow, constitute more than half the global stream network length. Identifying the sources of water that sustain flow in non-perennial streams is necessary to understand their potential impacts on downstream water resources and inform current policy and management. Here, we used water isotopes (δ18O and δ2H) to partition the evolution of streamwater age [...]

Soil moisture modulation of midlatitude heat waves

Adam Michael Bauer, Lucas R Vargas Zeppetello, Cristian Proistosescu

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

Robin Thibaut, Nicolas Compaire, Nolwenn Lesparre, et al.

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

Ratna Satyaningsih, Victor Jetten, Janneke Ettema, et al.

Published: 2023-01-20
Subjects: Applied Statistics, Earth Sciences, Geomorphology, Hydrology, Meteorology

High spatiotemporal resolution satellite data have been available to provide rainfall estimates with global coverage and relatively short latency. On the other hand, a rain gauge measures the actual rain that falls to the surface, but its network density is commonly sparse, particularly those that record at sub-daily records. These datasets are extensively used to define rainfall thresholds for [...]

STICr: An open-source package and workflow for processing and analyzing data from Stream Temperature, Intermittency, and Conductivity (STIC) loggers

Chris Wheeler, Sam Zipper, Stephen C. Cook, et al.

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

Mahmoud Al Najar, Rafael Almar, Erwin W. J. Bergsma, et al.

Published: 2023-01-11
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 the increasing population densities at coastal zones around the globe, 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. Symbolic Regression (SR) is a type of Machine Learning algorithm that aims to find interpretable [...]

Shyft and Rasputin: a toolbox for hydrologic simulations on triangular irregular networks

Olga Silantyeva, Ola Skavhaug, Bikas Chandra Bhattarai, et al.

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

Talat Kemal Satilmisoglu, Yusuf Sermet, Ibrahim Demir

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

PAULO ROGENES MONTEIRO PONTES, José Rafael de Albuquerque Cavalcanti, Edivaldo Afonso de Oliveira Serrão, et al.

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

Patrick W Keys, Lan Wang-Erlandsson, Michele-Lee Moore, et al.

Published: 2022-12-22
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

Christopher Zahasky, Manju Pharkavi Murugesu, Takeshi Kurotori, et al.

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 [...]


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