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Preprints

There are 5427 Preprints listed.

Dynamic rainfall-induced landslide susceptibility: a step towards a unified forecasting system

Mahnoor Ahmed, Hakan Tanyas, Raphaël Huser, et al.

Published: 2023-08-03
Subjects: Geomorphology, Statistical Models

The initial inception of the landslide susceptibility concept defined it as a static property of the landscape, explaining the proneness of certain locations to generate slope failures. Since the spread of data-driven probabilistic solutions though, the original susceptibility definition has been challenged to incorporate dynamic elements that would lead the occurrence probability to change both [...]

Estimating Reservoir Sedimentation Using Deep Learning

Amanda L Cox, Deanna Meyer, Alejandra Botero-Acosta, et al.

Published: 2023-08-03
Subjects: Engineering, Physical Sciences and Mathematics

Several reservoirs across the US are filling with sediment, which jeopardizes their functionality and increases maintenance costs. The US Army Corps of Engineers (USACE) developed the Reservoir Sedimentation Information (RSI) system to assess reservoir aggradation and track dam operation suitability for water-resource management and dam safety. The RSI dataset contains historical [...]

The ostracod clumped-isotope thermometer: A novel tool to reconstruct quantitative continental climate changes.

Marta Marchegiano, Marion Yolande Peral, Jeroen Venderickx, et al.

Published: 2023-08-02
Subjects: Life Sciences, Physical Sciences and Mathematics

This study presents the ostracod clumped-isotope (∆47) thermometer, a new tool that provides quantitative temperature and hydrological reconstruction from lacustrine systems, which are among the best archives to reconstruct continental paleotemperature variations. The relationship between ∆47 and the temperature at which ostracod shell crystallized, is determined by measuring ∆47 on different [...]

Pressurizing magma within heterogeneous crust: a case study at the Socorro Magma Body, New Mexico, USA

Grant A Block, Mousumi Roy, Emily Graves, et al.

Published: 2023-08-02
Subjects: Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics

Surface deformation plays a key role in illuminating magma transport at active volcanoes, however, unambiguous separation of deep and shallow transport remains elusive. The Socorro Magma Body (SMB) lacks an upper crustal magma transport system, allowing us to link geodetic measurements with predictions of numerical models investigating rheologic heterogeneities and magma-mush interaction in the [...]

What can be said about risks, vulnerabilities, and adaptation to climate change in Caribbean small island developing states (SIDS)? The case of Dominica. A qualitative study

Sarah Cooper, Christiana Abraham, Terrilia Ravaliere, et al.

Published: 2023-08-02
Subjects: Public Health

Introduction Caribbean Small island developing states (SIDS) are generally qualified as disproportionately vulnerable to climate change, including extreme weather events like hurricanes. While many studies already documented the impacts of climate change on health in the wealthiest countries, there is little knowledge in this field in Caribbean SIDS. Our study aims to discuss health risks and [...]

Our first Anthroponomic task: Remove the infrared pea soup

Ferren MacIntyre

Published: 2023-08-01
Subjects: Oceanography and Atmospheric Sciences and Meteorology

Some underappreciated aspects of the climate. [Idealization]: Earth has a partially IR-opaque 5-km-deep tropospheric layer whose (slowly rising) top radiates waste heat to space at the -18°C Stefan-Boltzmann temperature and below which the temperature increases 33°C by adiabatic compression. Fossil-fuel CO2 has deepened this layer by 308 m and added 2°C of Anthropogenic Global Warming. [...]

Application of the authigenic 10Be/9Be dating to constrain the age of a long-lived lake and its regression in an isolated intermontane basin: The case of Late Miocene Lake Turiec, Western Carpathians

Michal Šujan, Kishan Aherwar, Rastislav Vojtko, et al.

Published: 2023-07-31
Subjects: Earth Sciences, Geochemistry, Physical Sciences and Mathematics, Sedimentology, Stratigraphy

The depositional record of intermontane basins provides a valuable archive of the temporal evolution of orogenic belts; their common isolated nature may, however, hinder the efficient usage of standard approaches to constrain the age of a basin fill. In this paper the authigenic 10Be/9Be dating method is employed and tested to construct an age model of the existence and regression of Lake Turiec, [...]

Ultrasonic degradation of GenX (HFPO-DA) - Performance comparison to PFOA and PFOS at high frequencies

Nebojsa Ilic, Afrina Andalib, Thomas Lippert, et al.

Published: 2023-07-31
Subjects: Engineering

Sonolytic degradation kinetics of hexafluoropropylene oxide-dimer acid (HFPO-DA or GenX) were studied for the first time at four high ultrasonic frequencies (375, 580, 860 and 1,140 kHz) and three power densities (200, 300 and 400 W/L), and compared to the degradation of previously studied perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). The frequency of 580 kHz displayed [...]

The paleoecology of Rano Kao and the Environmental dynamics on Rapa Nui -the last 15,000 years

candace gossen

Published: 2023-07-31
Subjects: Physical Sciences and Mathematics

Summary Recent Research at Ava Ranga Uka includes the coring of four water sites along an 8km long collapsed lava tube to find out if significant carbon and nitrogen relationships to drought and rainfall fluctuations could be found on the terrestrial landscape. In 2005 we conducted the first paleoecological studies using oxygen isotopes were conducted in Rano Kao and the core KAO3 produced [...]

Experimental results, integrated model validation, and economic aspects of agrivoltaic systems at northern latitudes

Pietro Elia Campana, Bengt Stridh, Torsten Hörndahl, et al.

Published: 2023-07-31
Subjects: Agriculture, Other Mechanical Engineering

Agrivoltaic systems, which allow the coexistence of crop and electricity production on the same land, are considered an integrated water-energy-food nexus solution to allow the simultaneous attainment of conflicting Sustainable Development Goals. This study aims to analyse experimental results on ley grass yield and quality response to shadings in the first agrivoltaic system in Sweden and [...]

Unsupervised clustering identifies thermohaline staircases in the Canada Basin of the Arctic Ocean

Mikhail Schee, Erica Rosenblum, Jonathan Lilly, et al.

Published: 2023-07-28
Subjects: Oceanography, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics

Thermohaline staircases are a widespread stratification feature that impact the vertical transport of heat and nutrients and are consistently observed throughout the Canada Basin of the Arctic Ocean. Observations of staircases from the same time period and geographic region form clusters in temperature-salinity ($T$--$S$) space. Here, for the first time, we use an automated clustering algorithm [...]

3D shear wave velocity structure in the southwestern Okinawa Trough

Weiwei Wang, Shu-Huei Hung, Martha K. Savage, et al.

Published: 2023-07-28
Subjects: Geophysics and Seismology

The southwestern Okinawa Trough is an active back-arc basin, extending and rifting within the continental lithosphere. Studying the southwestern Okinawa Trough is important for understanding the processes involved in the opening and development of a back-arc basin. At various times between 2010 and 2018, the Institute of Earth Sciences, Academia Sinica, Taiwan deployed 34 Ocean Bottom [...]

The uncertain future of mountaintop-removal-mined landscapes 1: How mining changes erosion processes and variables

Charles Merritt Shobe, Samuel J Bower, Aaron E Maxwell, et al.

Published: 2023-07-28
Subjects: Geomorphology

Surface mining may be humanity's most tangible impact on Earth's surface and will become more prevalent as the energy transition progresses. Prediction of post-mining landscape change can help mitigate environmental damage, but requires understanding how mining changes geomorphic processes and variables. Here we investigate surface mining's complex influence on surface processes in a case study [...]

How big is a boulder? Evaluating fixed and process-based definitions for boulders

Richard Mason, Lina E. Polvi

Published: 2023-07-28
Subjects: Life Sciences, Physical Sciences and Mathematics

Boulders are globally widespread and influence landscape processes across hillslopes, coasts, rivers and extra-terrestrial settings. Boulders are described as particles, sufficiently large, that the movement of an individual grain promotes substantial geomorphic change. Moving beyond this conceptual definition, however, requires a somewhat arbitrary decision of how to define a minimum boulder [...]

Estimating the silica content and loss-on-ignition in the North American Soil Geochemical Landscapes datasets: a recursive inversion approach

Patrice de Caritat, Eric Grunsky, David B Smith

Published: 2023-07-28
Subjects: Geochemistry, Natural Resources and Conservation, Soil Science

A novel method of estimating the silica (SiO2) and loss-on-ignition (LOI) concentrations for the North American Soil Geochemical Landscapes (NASGL) project datasets is proposed. Combining the precision of the geochemical determinations with the completeness of the mineralogical NASGL data, we suggest a ‘reverse normative’ or inversion approach to calculate first the minimum SiO2, water (H2O) and [...]

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