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Preprints

Filtering by Subject: Hydrology

Never train an LSTM on a single basin

Frederik Kratzert, Martin Gauch, Daniel Klotz, et al.

Published: 2023-12-05
Subjects: Artificial Intelligence and Robotics, Computer Sciences, Earth Sciences, Hydrology, Physical Sciences and Mathematics

Machine learning (ML) has an increasing role in the hydrological sciences, and in particular, certain types of time series modeling strategies are popular for rainfall-runoff modeling. A large majority of studies that use this type of model do not follow best practices, and there is one mistake in particular that is very common: training deep learning models on small, homogeneous data sets (i.e., [...]

UMIS: An Integrated Cyberinfrastructure System for Water Quality Resources in the Upper Mississippi River Basin

Jerry Mount, Yusuf Sermet, Chris Jones, et al.

Published: 2023-11-28
Subjects: Computer and Systems Architecture, Databases and Information Systems, Engineering Education, Environmental Education, Environmental Engineering, Hydrology, Natural Resources Management and Policy, Systems and Communications, Water Resource Management

The Upper Mississippi Information System (UMIS) is a cyberinfrastructure framework designed to support large-scale real-time water quality data integration, analysis, and visualization for the Upper Mississippi River Basin (UMRB). UMIS is intended to directly address three of the Grand Challenges for Engineering including: 1) understanding access to clean drinking water, 2) management of the [...]

Looking upstream: analyzing the protection of the drainage area of Amazon rivers

Rosane Barbosa Lopes Cavalcante, Ayan Santos Fleischmann, PAULO ROGENES MONTEIRO PONTES

Published: 2023-11-13
Subjects: Earth Sciences, Environmental Indicators and Impact Assessment, Environmental Sciences, Hydrology, Sustainability, Water Resource Management

In the Amazon, aquatic ecosystems provide essential ecosystem services, including transportation, food, and livelihoods for millions of species. Land use changes and management impact these ecosystem services, and these impacts are not limited to the specific areas where they occur but propagate downstream along the drainage network. However, assessment of the accumulated human footprint upstream [...]

Defining Plastic Pollution Hotspots

Paolo Tasseron, Tim van Emmerik, Paul Vriend, et al.

Published: 2023-11-10
Subjects: Environmental Sciences, Environmental Studies, Fresh Water Studies, Hydrology

Plastic pollution in the natural environment poses a growing threat to ecosystems and human health, prompting urgent needs for monitoring, prevention and clean-up measures, and new policies. To effectively prioritize resource allocation and mitigation strategies, it is key to identify and define plastic hotspots. UNEP’s draft global agreement on plastic pollution mandates prioritizing hotspots, [...]

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 [...]

Pygoda: a graphical interface to efficiently visualise and explore large sets of geolocated time series

Yann Ziegler, Jonathan L. Bamber

Published: 2023-10-24
Subjects: Categorical Data Analysis, Climate, Computer Sciences, Databases and Information Systems, Earth Sciences, Environmental Monitoring, Environmental Sciences, Environmental Studies, Fresh Water Studies, Geographic Information Sciences, Geophysics and Seismology, Glaciology, Graphics and Human Computer Interfaces, Hydrology, Longitudinal Data Analysis and Time Series, Meteorology, Other Earth Sciences, Other Statistics and Probability, Spatial Science

Modern-day data sets in geosciences may comprise hundreds or thousands of geolocated time series. Despite all the automated tools and new algorithms now available to process and prepare those data before using them in research projects, it can be useful or even necessary to visualise and investigate them manually. Whether it be for data quality assessment, for the preparation of a training data [...]

Hydrological model skills change with drought severity; insights from multi-variable evaluation

Giulia Bruno, Francesco Avanzi, Lorenzo Alfieri, et al.

Published: 2023-10-23
Subjects: Earth Sciences, Hydrology, Physical Sciences and Mathematics

Hydrological models often do not properly simulate streamflow (Q) during extreme events, including droughts. Limited abilities in simulating Q during droughts may arise from a misrepresentation of Q generating processes during these periods, but little research has focused on distributed, process-based models over human-affected areas and extreme events. To shed more light into model consistency [...]

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: 2023-10-13
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) [...]

The contemporary stable isotope hydrology of Lake Suigetsu and surrounding catchment (Japan) and its implications for sediment-derived palaeoclimate records

Charlie Rex, Jonathan Tyler, Kazuyoshi Nagaya, et al.

Published: 2023-10-03
Subjects: Fresh Water Studies, Geochemistry, Hydrology, Meteorology

The Lake Suigetsu sediment cores exemplify a high-quality archive of palaeoclimatic change in East Asia during the past 150 ka. Robust interpretation of stable isotope-based proxy reconstructions from the Suigetsu cores can be aided by a greater understanding of the factors affecting the isotope composition of the lake and how it relates to that of precipitation. Here we use extended contemporary [...]

Modelling lateral meltwater flow and superimposed ice formation atop Greenland's near-surface ice slabs

Nicole Clerx, Horst Machguth, Andrew Tedstone, et al.

Published: 2023-10-02
Subjects: Glaciology, Hydrology

At high elevations on the Greenland ice sheet meltwater percolates and refreezes in place, and hence does not contribute to mass loss. However, meltwater generation and associated surface runoff is occurring from increasingly higher altitudes, causing changes in firn stratigraphy that have led to the presence of near-surface ice slabs. These ice slabs force meltwater to flow laterally instead of [...]

No respite from permafrost-thaw impacts in absence of a global tipping point

Jan Nitzbon, Thomas Schneider von Deimling, Mehriban Aliyeva, et al.

Published: 2023-09-25
Subjects: Biogeochemistry, Climate, Earth Sciences, Geomorphology, Hydrology, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics

Arctic permafrost, the largest non-seasonal component of Earth’s cryosphere, contains a significant climate-sensitive carbon pool. Its potential for loss due to climatic changes leading to a global tipping point, where thawing accelerates with disproportionate impacts, remains debated. Here, we provide an integrative perspective on this question, building on a cross-disciplinary meta-analysis of [...]

Groundwaterscapes: A global classification and mapping of groundwater’s large-scale socioeconomic, ecological, and Earth system functions

Xander Huggins, Tom Gleeson, Karen G. Villholth, et al.

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 [...]

Continental scale hydrostratigraphy: comparing geologically informed data products to analytical solutions

Jackson Swilley, Danielle Tijerina-Kreuzer, Hoang Tran, et al.

Published: 2023-09-12
Subjects: Civil and Environmental Engineering, Geology, Hydrology

This study synthesizes two different methods for estimating hydraulic conductivity (K) at large scales. We derive analytical approaches that estimate K and apply them to the contiguous US. We then compare these analytical approaches to three-dimensional, national gridded K data products and three transmissivity (T) data products developed from publicly available sources. We evaluate these data [...]

High Accuracy Estimation and Validation of InSAR-derived Surface Displacements at Temperate Raised Peatlands

Alexis Hrysiewicz, Jennifer Williamson, Chris D. Evans, et al.

Published: 2023-09-04
Subjects: Geophysics and Seismology, Hydrology, Soil Science

Peatland surface motion derived from satellite-based Interferometry of Synthetic Aperture Radar (InSAR) is potentially a proxy for groundwater level variations and greenhouse gas emissions from peat soils. Ground validation of these motions at equivalent temporal resolution and accuracy has proven problematic because of limitations of traditional surveying methods. Since 2019, peat surface motion [...]

Machine Learning Photogrammetric Analysis of Images Provides a Scalable Approach to Study Riverbed Grain Size Distributions

Peter Regier, Yunxiang Chen, Kyongho Son, et al.

Published: 2023-09-01
Subjects: Earth Sciences, Geomorphology, Hydrology

The distribution of sediment grain size in streams and rivers is often quantified by the median grain size (d50), a key metric for understanding and predicting hydrologic and biogeochemical function of streams and rivers. Manual methods to measure d50 are time-consuming and ignore larger grains, while model-based methods to estimate d50 often over-generalize basin characteristics, and therefore [...]

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