Preprints

Filtering by Subject: Other Earth Sciences

A numerical study of SMART Cables potential in marine hazard early warning for the Sumatra and Java regions

Amir Salaree, Bruce M Howe, Yihe Huang, Stuart A Weinstein, Andi E Sakya

Published: 2021-05-04
Subjects: Earth Sciences, Geophysics and Seismology, Other Earth Sciences

We present results from a series of exploratory numerical experiments based on ocean bottom pressure and seismic data from a simulated linear array of SMART cable stations off the trench in the Sumatra-Java region. We use six rupture scenarios to calculate tsunami propagation using hydrodynamic simulations. Through these experiments we show that such an addition would result in up to several [...]

Bridging spatiotemporal scales of normal fault growth using numerical models of continental extension

Sophie Pan, John Naliboff, Rebecca E. Bell, Chris Jackson

Published: 2021-04-21
Subjects: Earth Sciences, Geology, Geophysics and Seismology, Other Earth Sciences, Physical Sciences and Mathematics, Tectonics and Structure

Continental extension is accommodated by the development of kilometre-scale normal faults, which grow by accumulating metre-scale earthquake slip over millions of years. Reconstructing the entire lifespan of a fault remains challenging due to a lack of observational data of appropriate scale, particularly over intermediate timescales (10^4-10^6 yrs). Using 3D numerical simulations of continental [...]

An uncertainty-focused database approach to extract spatiotemporal trends from qualitative and discontinuous lake-status histories

Gijs De Cort, Manuel Chevalier, Sallie L. Burrough, Christine Y. Chen, Sandy P. Harrison

Published: 2021-03-01
Subjects: Climate, Earth Sciences, Geology, Geomorphology, Hydrology, Longitudinal Data Analysis and Time Series, Other Earth Sciences, Sedimentology, Statistical Methodology, Stratigraphy

Changes in lake status are often interpreted as palaeoclimate indicators due to their dependence on precipitation and evaporation. The Global Lake Status Database (GLSDB) has since long provided a standardised synopsis of qualitative lake status over the last 30,000 14C years. Potential sources of uncertainty however are not recorded in the GLSDB. Here we present an updated and improved [...]

Insights into the nature of plume-ridge interaction and outflux of H2O from the Galápagos Spreading Centre

Matthew Lloyd Morgan Gleeson, Sally Gibson

Published: 2021-02-18
Subjects: Earth Sciences, Geochemistry, Other Earth Sciences, Physical Sciences and Mathematics, Volcanology

The flow of high-temperature and compositionally-enriched material between mantle plumes and nearby spreading centres influences up to 30% of the global mid-ocean ridge system and represents a significant, but currently unconstrained, flux of volatiles out of the mantle. Here we present new analyses of H2O, F, Cl and S in basaltic glass chips from an archetypal region of plume-ridge interaction, [...]

Ordination analysis in sedimentology, geochemistry and paleoenvironment - background, current trends and recommendations

Or M. Bialik, Emilia Jarochowska, Michal Grossowicz

Published: 2021-02-01
Subjects: Biogeochemistry, Earth Sciences, Environmental Indicators and Impact Assessment, Environmental Monitoring, Geochemistry, Geology, Geomorphology, Geophysics and Seismology, Glaciology, Multivariate Analysis, Oil, Gas, and Energy, Other Earth Sciences, Paleobiology, Paleontology, Sedimentology

Ordination is the name given to a group of methods used to analyze multiple variables without preceding hypotheses. Over the last few decades the use of these methods in Earth science in general, and notably in analyses of sedimentary sources, has dramatically increased. However, with limited resources oriented towards Earth scientists on the topic, the application of ordination analysis is at [...]

Cosmic Relationships: Comets, Human Behavior and New Discoveries on Easter Island

candace gossen

Published: 2021-01-22
Subjects: Other Astrophysics and Astronomy, Other Earth Sciences

Humans have recorded celestial events for as long as we have been able to draw and write. Pictographs, petroglyphs and even standing stones mark moments in time on the landscape to remember changing seasons and repeating cycles. Some merge together to form cosmic relationships where great civilization collapse is ushered in by a supernova and stamped onto a rock with a hand print. This historical [...]

Combination of GNSS orbits using variance component estimation

Gustavo Bento Mansur, Pierre Sakic, Andreas Brack, Benjamin Männel, Harald Schuh

Published: 2020-12-22
Subjects: Earth Sciences, Other Earth Sciences

Over the past years, the International GNSS Service (IGS) has been putting efforts into extending its service towards the Multi-GNSS Experiment and Pilot Project (MGEX). Several MGEX Analysis Centers (ACs) contribute by providing solutions containing not only GPS and GLONASS but also Galileo, BeiDou, and QZSS. The MGEX orbit and clock combination is a product that is still not consolidated inside [...]

Tectono-stratigraphic development of a salt-influenced rift margin; Halten Terrace, offshore Mid-Norway

Gavin Elliott, Christopher A-L Jackson, Robert Leslie Gawthorpe, Paul Wilson, Ian Roger Sharp, Lisa Michelsen

Published: 2020-12-22
Subjects: Geology, Other Earth Sciences, Sedimentology, Tectonics and Structure

In salt-influenced rift basins the presence of a pre-rift salt layer will control the tectono-stratigraphic evolution of the rift due to the decoupling of the sub- and suprasalt faults leading to temporal and spatial variations in structural style. Lateral variations in rift flank structure will control the dispersal and volumes of sediment deposited in rifts and along rifted margins, which in [...]

Mapping Landslides With a Generalized Convolutional Neural Network

Nikhil Prakash, Andrea Manconi, Simon Loew

Published: 2020-12-13
Subjects: Geomorphology, Other Earth Sciences, Risk Analysis

Landslides are a common secondary hazard triggered by major earthquakes or extreme rainfall events in steep terrains. Rapid mapping of event landslides is crucial to identify the areas affected by damages as well as for effective disaster response. Traditionally, such maps are generated with visual interpretation of remote sensing imagery (manned/unmanned airborne systems or spaceborne sensors) [...]

A Vision for the Future Low-Temperature Geochemical Data-scape

Susan L. Brantley, Tao Wen, Deb Agarwal, Jeff Catalano, Paul A. Schroeder, Kerstin Lehnert, Charuleka Varadharajan, Julie Pett-Ridge, Mark Engle, Anthony M. Castronova, Rick Hooper, Xiaogang Ma, Lixin Jin, Kenton McHenry, Emma Aronson, Andrew Shaughnessy, Lou Derry, Justin Richardson, Jerad Bales, Eric Pierce

Published: 2020-11-21
Subjects: Biogeochemistry, Computer Sciences, Databases and Information Systems, Earth Sciences, Environmental Sciences, Geochemistry, Geology, Geomorphology, Hydrology, Other Computer Sciences, Other Earth Sciences, Soil Science

Data sharing benefits the researcher, the scientific community, and most importantly, the public by enabling more impactful analysis of data and greater transparency in scientific research. However, like many other scientists, the low-temperature geochemistry (LTG) community has generally not developed protocols and standards for publishing, citing, and versioning datasets. This paper is the [...]

A prototype for a Multi-GNSS orbit combination

Pierre Sakic, Gustavo Mansur, Benjamin Männel

Published: 2020-08-20
Subjects: Astrophysics and Astronomy, Earth Sciences, Other Astrophysics and Astronomy, Other Earth Sciences, Physical Sciences and Mathematics

Since 1994, the International GNSS Service (IGS) provides a combination of orbit and clock offset products from its different Analysis Centers. These products are used as input by many software for countless scientific and/or operational applications. They can also be used as an independent reference for benchmark experiments. Nevertheless, those products include GPS-only data, despite the fact [...]

The 23 June 2020, Mw 7.4 La Crucecita, Oaxaca, Mexico earthquake and tsunami: A Rapid Response Field Survey during COVID-19 crisis

Maria Teresa Ramirez-Herrera, David Romero, Néstor Corona, Héctor Nava, Hamblet Torija, Felipe Hernández Maguey

Published: 2020-08-18
Subjects: Earth Sciences, Other Earth Sciences, Physical Sciences and Mathematics

The 23 June 2020 La Crucecita earthquake occurred at 10:29 hr on the coast of Oaxaca in a Mw 7.4 megathrust event at 22.6 km depth, and triggered a tsunami recorded at Huatulco and Salina Cruz tide gauge stations and a DART off the coast of Mexico. Immediately after the earthquake, a rapid response effort was coordinated by members of the Tsunami and Paleoseismology Laboratory UNAM, despite the [...]

Bridging the gap between geophysics and geology with Generative Adversarial Networks (GANs)

Suihong Song, Tapan Mukerji, Jiagen Hou

Published: 2020-08-16
Subjects: Artificial Intelligence and Robotics, Computer Sciences, Databases and Information Systems, Earth Sciences, Environmental Monitoring, Environmental Sciences, Geology, Geomorphology, Geophysics and Seismology, Natural Resource Economics, Oil, Gas, and Energy, Other Earth Sciences, Physical Sciences and Mathematics, Sedimentology, Water Resource Management

Inverse mapping from geophysics to geology is a difficult problem due to the inherent uncertainty of geophysical data and the spatially heterogeneous patterns (structure) in geology. We describe GANSim, a type of generative adversarial networks (GANs) that discovers the mapping between remotely-sensed geophysical information and geology with realistic patterns, with a specially designed loss [...]

Crop residues are a key feedstock to bioeconomy but available methods for their estimation are highly uncertain

Shivesh Kishore Karan, Lorie Hamelin

Published: 2020-07-29
Subjects: Agriculture, Civil and Environmental Engineering, Earth Sciences, Engineering, Environmental Sciences, Life Sciences, Natural Resource Economics, Natural Resources and Conservation, Other Earth Sciences, Other Environmental Sciences, Physical Sciences and Mathematics, Sustainability

Crop residues are acknowledged as a key biomass resource to feed tomorrow’s sustainable bioeconomy. Yet, the quantification of these residues at large geographical scales is primarily reliant upon generic statistical estimations based on empirical functions linking the residues production to the primary crop yield. These useful yet unquestioned functions are developed either using direct evidence [...]

Stress perturbations from hydrological and industrial loads and seismicity in the Salt Lake City region

Xie Hu, Xue Liang, Roland Bürgmann, Yuning Fu, Teng Wang

Published: 2020-07-18
Subjects: Earth Sciences, Other Earth Sciences, Physical Sciences and Mathematics

The March 18, 2020 M5.7 Magna earthquake awakened people from decades of seismic quiescence in Salt Lake City, Utah. The event occurred just east of a mine tailings impoundment that receives ~60 million tons/yr of ore waste products since the early 1900s. Here we investigate elastic loading effects due to the anthropogenic mass transfer and various natural hydrological loads. We note a possible [...]

search

You can search by:

  • Title
  • Keywords
  • Author Name
  • Author Affiliation