Preprints
There are 7999 Preprints listed.
Mapping the Landscape of Water and Society Research: Promising Combinations of Compatible and Complementary Disciplines
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) [...]
Sediment supply controls on Early Eocene delta sequences (South Pyrenean Foreland Basin; Spain)
Published: 2023-10-13
Subjects: Climate, Geochemistry, Geology, Sedimentology, Stratigraphy
Sediment supply variations are often overlooked when interpreting depositional sequences, which tend to emphasize changes in accommodation. Here, we focus on a temporally well-constrained shallow-marine succession in the South Pyrenean Foreland Basin to test the control of sediment supply on the development of deltaic sequences during the Early Eocene. We analyzed the paleoenvironmental record [...]
Testing the applicability of standardised growth curves for chemically heterogeneous single-grain feldspars from the Atacama Desert, Chile
Published: 2023-10-26
Subjects: Earth Sciences
The Atacama Desert is generally considered the driest non-polar desert on Earth and is therefore an ideal study area for exploring the water and biota free endmember of Earth’s Critical Zone (ECZ). Single grain (SG) luminescence dating has successfully identified processes in the ECZ. However, SG luminescence dating of Atacama Desert feldspars is challenging and time consuming since only a small [...]
Future (2015-2100) Antarctic-wide ice-shelf firn air depletion from a statistical firn emulator
Published: 2023-10-13
Subjects: Earth Sciences, Glaciology, Physical Sciences and Mathematics
Antarctic firn is critical for ice-shelf stability because it stores meltwater that would otherwise pond on the surface. Ponded meltwater increases the risk of hydrofracture, and subsequent potential ice-shelf collapse. Here, we use output from a firn model to build a computationally simpler emulator that uses a random forest to predict ice-shelf firn air content (FAC) based on climate [...]
What is coastal subsidence?
Published: 2023-10-13
Subjects: Physical Sciences and Mathematics
While major technological advances have made measurements of coastal subsidence more sophisticated, these advances have not always been matched by a thorough examination of what is actually being measured. Here we draw attention to the widespread miscommunication about key concepts in the coastal subsidence literature, much of which revolving around the interplay between sediment accretion, [...]
Reproducing the Mid-Piacenzian Warm Period Climate in the 2020s.
Published: 2023-10-17
Subjects: Physical Sciences and Mathematics
The current expectation of climatologists is that levels of atmospheric carbon dioxide (CO2) and other greenhouse gases, such as methane (CH4) and nitrous oxide (N2O), will correspond, in the 2020s, to an increase in mean annual global near-surface atmospheric temperature of less than 1.5°C above the pre-industrial Holocene norm (1750 baseline; atmospheric CO2 = 278 ppm). This paper will argue, [...]
Moving graphs: Predicting barchan dune migration rates from their shapes
Published: 2023-10-17
Subjects: Physical Sciences and Mathematics
In this study, geometric perspectives on sand dune formation and motion are summarized, introduced, and combined to predict time-averaged velocities (migration rates) of barchan dunes directly from their shapes. First, it is proposed that smaller sediment accumulations outpace larger ones due to differences in surface-to-volume ratio. This ratio is defined by a bedform’s wavelength and its [...]
Can land-use and land-cover change explain reduced resilience in forests?
Published: 2023-10-24
Subjects: Forest Sciences
Generating signals of reduced resilience in ecosystems is crucial for conservation and management endeavors. However, the practical implications of such systems are still limited due to the lack of high-frequency data and uncertainties associated with predicting complex systems such as ecosystems. This study aims to investigate the potential of time series analysis of remote sensing data in [...]
Global ocean spatial suitability for macroalgae offshore cultivation and sinking
Published: 2023-10-17
Subjects: Physical Sciences and Mathematics
Macroalgae offshore cultivation and sinking is considered a potentially practical approach for ocean-based carbon dioxide removal. However, several considerations need to be resolved to assess the effectiveness and sustainability of this approach. Currently, several studies focus on the area required for climate-relevant carbon sequestration through macroalgae cultivation and sinking without [...]
Presence of Emerging Contaminants and Antibiotic Resistance Genes in Private Well Water
Published: 2023-10-19
Subjects: Environmental Sciences
Occurrence of emerging contaminants (ECs) including parent compounds, their metabolites, and antibiotic resistance genes (ARGs) and their relationships to common chemical and microbial indicators have rarely been investigated for private wells. In this study, occurrence of 109 parent compounds (ECs), 29 EC metabolites, and 15 ARGs were screened in private well water samples from 57 Southwest [...]
Detection of Hidden Low-Frequency Earthquakes in Southern Vancouver Island with Deep Learning
Published: 2023-10-19
Subjects: Physical Sciences and Mathematics
Low-frequency earthquakes (LFEs) are small-magnitude earthquakes that are depleted in high-frequency content relative to traditional earthquakes of the same magnitude. These events occur in conjunction with slow slip events (SSEs) and can be used to infer the space and time evolution of SSEs. However, because LFEs have weak signals, and the methods used to identify them are computationally [...]
Spatial standardization of taxon occurrence data—a call to action
Published: 2023-10-20
Subjects: Biodiversity, Ecology and Evolutionary Biology, Paleobiology, Paleontology, Statistical Methodology
The fossil record is spatiotemporally heterogeneous: taxon occurrence data have patchy spatial distributions, and this patchiness varies through time. Large-scale quantitative paleobiology studies that fail to account for heterogeneous sampling coverage will generate uninformative inferences at best and confidently draw wrong conclusions at worst. Explicitly spatial methods of standardization are [...]
Harnessing the Power of Rhizosphere Bacteria for Pollution Remediation: Strategies, Mechanisms, and Environmental Impact: A Minireview
Published: 2023-10-23
Subjects: Life Sciences
This present review provides an in-depth exploration of the burgeoning potential of rhizosphere bacteria as a formidable tool for pollution remediation within the context of contemporary scientific understanding. The rhizosphere, a soil region intimately associated with plant roots, encompasses a dynamic and diverse bacterial community renowned for its distinctive capabilities in mitigating a [...]
Pacific shoreline erosion and accretion patterns controlled by El Niño/Southern Oscillation
Published: 2023-10-27
Subjects: Civil and Environmental Engineering, Climate, Earth Sciences, Engineering, Environmental Monitoring, Environmental Sciences, Geomorphology, Oceanography, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics
In the Pacific Basin, the El Niño/Southern Oscillation (ENSO) is the dominant mode of interannual climate variability, driving substantial changes in oceanographic forcing and impacting Pacific coastlines. Yet, how sandy coasts respond to these basin-scale changes has to date been limited to a few long-term beach monitoring sites, predominantly on developed coasts. Here we use 38 years of Landsat [...]
Hydrological model skills change with drought severity; insights from multi-variable evaluation
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 [...]