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Creators/Authors contains: "Tucker, James"

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  1. ; ; ; ; (, Earth Surface Dynamics)
    Abstract. Large subduction earthquakes can rupture the shallow part of the megathrust with unusually large displacements and tsunamis. The long duration of the seismic source and high upper-plate compliance contribute to large and protracted long-period motions of the outer upper plate. The resulting shear stress at the sediment–water interface in, for example, the Mw 9.0 2011 Tohoku–Oki earthquake could account for surficial sediment remobilization on the outer margin. We test this hypothesis by simulating in physical tank experiments the combined effects of high- and low-frequency seismic motions on sediment of different properties (chemistry, grain size, water content, and salinity). Our results show that low-frequency motion during a 2011-like earthquake can entrain several centimeters of surficial sediment and that entrainment can be enhanced by high-frequency vertical oscillations. These experiments validate a new mechanism of co-seismic sediment entrainment in deep-water environments. 
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    Free, publicly-accessible full text available January 1, 2026
  2. ; ; ; ; ; ; (, Biodiversity Information Science and Standards)
    TaxonWorks is an open-source workbench for biodiversity researchers. With several years of development behind it, we highlight its present status, and discuss if and when it makes sense to release a version 1.0, i.e. software completed to specific stage. TaxonWorks' scope is broad; it seeks to touch nearly all areas that might be of interest to taxonomists, i.e. those who integrate everything that is known about a taxon into a single resource. Its role as a software platform is placed in a broader context, where many instances of TaxonWorks each can support multiple research projects. Instances may be supported by individuals or organizations. A suite of technical tools including containerization and unit tests facilitate collaboration at many different levels. TaxonWorks is a research tool, mechanisms for analyzing the results of data curation including its application programing interface are described. The long-term development of TaxonWorks is supported by an endowment to the Species File Group. Its source is available on Github. 
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