Preprints

There are 3014 Preprints listed.

Building New Tools Outside the Browser: A New Look at Custom Stand-Alone Applications for Earth Data Access and Visualization

Bruce R. Caron

Published: 2022-05-03
Subjects: Earth Sciences

Today, the debate between online services and installable applications is often characterized as an either-or, winner-take-all situation. In the earth sciences, how-ever, due to data handing and visualization needs, a combination of online, service-oriented architecture (SOA) tools and custom installable applications holds the most promise if these data resources are to be used by a greater and [...]

Pipeline availability limits on the feasibility of global coal-to-gas switching in the power sector

Shuting Yang, Sara Hastings Simon, Arvind Ravikumar

Published: 2022-05-02
Subjects: Oil, Gas, and Energy, Sustainability

Coal-to-gas switching in the power sector, as happened in the US, has been a key driver of near-term greenhouse gas emissions reductions. Can this success be replicated around the world? Here, we explore the limits of a global, plant-level, coal-to-gas transition arising from pipeline availability constraints. Globally, only 43% of coal capacity is within 14 km of a nearby pipeline, the median [...]

The signature of lithospheric anisotropy at post-subduction continental margins: new insight from XKS splitting analysis in northern Borneo

Conor Andrew Bacon, Nicholas Rawlinson, Simone Pilia, et al.

Published: 2022-05-02
Subjects: Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics, Tectonics and Structure

The relative paucity of recent post-subduction environments globally has meant that, so far, little is known about tectonic processes that occur during and after subduction termination, as previously convergent tectonic plates adjust to the new stress regime. The region of Southeast Asia that now encompasses northern Borneo has been host to two sequential episodes of subduction—both now [...]

Arctic sediment routing during the Triassic - sinking the Arctic Atlantis

Albina Gilmullina, Tore Grane Klausen, Anthony George Doré, et al.

Published: 2022-05-02
Subjects: Geology

Opening of the Arctic Ocean has been the subject of much debate, and the placement of terranes in Early Mesozoic remains a crucial part of this important discussion. Several continental terranes complicate the paleogeographic reconstruction. One such terrane is Crockerland, which has been inferred to explain sediment distribution in the Arctic throughout the Mesozoic. However, the Triassic [...]

Tidal Turbine Array Modelling using Goal-Oriented Mesh Adaptation

Joseph Gregory Wallwork, Athanasios Angeloudis, Nicolas Barral, et al.

Published: 2022-04-30
Subjects: Civil and Environmental Engineering, Fluid Dynamics, Geophysics and Seismology, Numerical Analysis and Computation, Partial Differential Equations

Purpose: To examine the accuracy and sensitivity of tidal array performance assessment by numerical techniques applying goal-oriented mesh adaptation. Methods: The goal-oriented framework is designed to give rise to adaptive meshes upon which a given diagnostic quantity of interest (QoI) can be accurately captured, whilst maintaining a low overall computational cost. We seek to improve the [...]

Radiogenic isotope: not just about words

Olivier Pourret, Karen Johannesson

Published: 2022-04-30
Subjects: Earth Sciences, Geochemistry

This viewpoint is a short comment on gender issues with isotope terminology. The terms "parent"/"daughter" should be avoided in favor of the more descriptive "precursor ion" and "product ion" terms.

Asynchronous dynamics of the last Scandinavian Ice Sheet along the Pomeranian Phase ice-marginal belt: a new scenario inferred from surface exposure 10Be dating

Karol Tylmann, Piotr P. Woźniak, Vincent Rinterknecht, et al.

Published: 2022-04-30
Subjects: Physical Sciences and Mathematics

We present a new set of 25 10Be surface exposure ages of boulders located on the Pomeranian moraines and of erratic boulders located directly upstream of the Pomeranian moraines in northern Poland. Together with recalculated 10Be surface exposure ages along the Pomeranian Phase ice-marginal belt from Denmark to the west to Lithuania and Belarus to the east, the full data set (n = 86) enabled us [...]

Magnetic fabrics reveal three-dimensional flow processes within elongate magma fingers near the Shonkin Sag laccolith (MT, USA)

Jonas Köpping, Alexander R. Cruden, Craig Magee, et al.

Published: 2022-04-29
Subjects: Earth Sciences, Geology, Physical Sciences and Mathematics, Tectonics and Structure, Volcanology

Unravelling magma flow in ancient sheet intrusions is critical to understanding how magma pathways develop and feed volcanic eruptions. Analyzing the shape preferred orientation of minerals in intrusive rocks can provide information on magma flow, because crystals may align parallel to the primary flow direction. Anisotropy of magnetic susceptibility (AMS) is an established method to quantify [...]

Uncertainty quantification of multi-modal surface wave inversion using artificial neural networks

Alexandr Yablokov, Yevgeniya Lugovtsova, Aleksander Serdyukov

Published: 2022-04-29
Subjects: Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics

An inversion of surface waves dispersion curves is a non-unique and ill-conditioned problem. The inversion result has a probabilistic nature, what becomes apparent when simultaneously restoring the shear wave (S-wave) velocity and layer thickness. Therefore, the problem of uncertainty quantification is relevant. Existing methods through deterministic or global optimization approaches of [...]

Critical metal enrichment in crustal melts: the role of metamorphic mica

Barbara Kunz, Clare Warren, Frances Jenner, et al.

Published: 2022-04-29
Subjects: Physical Sciences and Mathematics

Rare metals like Li, Be, V, Co, Nb, In, Cs, Sn, Ta, and W are considered critical resources and can be significantly enriched in granites and pegmatites. However the mechanisms of their enrichment in granitic magmas remain poorly understood. Many metal-enriched granitic magmas form through mica dehydration reactions during high-grade metamorphism. The preferential incorporation of these metals [...]

Machine learning and marsquakes: a tool to predict atmospheric-seismic noise for the NASA InSight mission

Alexander Stott, Raphael Garcia, Armand Chédozeau, et al.

Published: 2022-04-27
Subjects: Geophysics and Seismology, Planetary Geophysics and Seismology

The SEIS experiment on the NASA InSight mission has catalogued hundreds of marsquakes so far. However, the detectability of these events is controlled by the weather which generates seismic noise. This affects the catalogue on both diurnal and seasonal scales. We propose to use machine learning methods to fit the wind, pressure and temperature data to the seismic energy recorded in the 0.4-1 Hz [...]

Using water footprint concepts for water security assessment of a basin under anthropogenic pressures

Ersilia D'Ambrosio, Giovanni Francesco Ricci, Francesco Gentile, et al.

Published: 2022-04-27
Subjects: Life Sciences

The evaluation of water shortages and pollution levels is crucial for watershed management and sustainable development. This paper proposes a water footprint (WF) sustainability assessment approach to analyse water security in a river basin under human pressures. The methodology involves a comprehensive assessment of the current water security at different spatial and temporal levels, and [...]

Global dynamics of the offshore wind energy sector monitored with Sentinel-1: Turbine count, installed capacity and site specifications

Thorsten Hoeser, Claudia Kuenzer

Published: 2022-04-26
Subjects: Applied Statistics, Earth Sciences, Environmental Sciences, Natural Resource Economics, Natural Resources Management and Policy, Oil, Gas, and Energy, Other Earth Sciences, Statistics and Probability

With the promotion of renewable energy production and a planned phaseout of fossil fuels until 2040, the offshore wind energy sector has started to expand and will continue to increase its capacity in the upcoming decades. This study presents how the installed capacity can be derived from radar imagery provided by the Sentinel-1 mission for all offshore wind turbines on the entire Earth. By [...]

Incorporating Full Elastodynamic Effects and Dipping Fault Geometries in Community Code Verification Exercises for Simulations of Earthquake Sequences and Aseismic Slip (SEAS)

Brittany Angela Erickson, Junle Jiang, Valere Lambert, et al.

Published: 2022-04-26
Subjects: Physical Sciences and Mathematics

Numerical modeling of earthquake dynamics and derived insight for seismic hazard relies on credible, reproducible model results. The SEAS (Sequences of Earthquakes and Aseismic Slip) initiative has set out to facilitate community code comparisons, and verify and advance the next generation of physics-based earthquake models that reproduce all phases of the seismic cycle. With the goal of [...]

Potential Health and Economic Impacts of Shifting Manufacturing from China to Indonesia or India

Qi Ran, Shao-Yi Lee, Duofan Zheng, et al.

Published: 2022-04-26
Subjects: Physical Sciences and Mathematics

The diversification or decoupling of production chains from China to alternative Asian countries such as India or Indonesia would impact the spatial distribution of anthropogenic emissions, with corresponding economic impacts due to mortality associated with particulate matter exposure. We evaluated these changes using the Community Earth System Model, the Integrated Exposure-Response (IER) model [...]

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