Data Products at the IRIS‐DMC: Growth and Usage

Hutko, A. R.; Bahavar, M.; Trabant, Chad; Weekly, R. T.; Fossen, M. Van; Ahern, T. K.

doi:10.1785/0220160190

Cited by 47 publications

(30 citation statements)

References 21 publications

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“…Vote maps are generated as in Figure 6, except that areas of less than six votes are shaded uniformly grey. SubMachine and other tomography portals (e.g., Becker & Boschi, 2002;Hutko et al, 2017;Kim et al, 2016) render 2-D slices extracted from volumetric data sets. As an extension to 3-D rendering, isosurface (2-D hyperplanes) or true volume rendering are highly desirable visualization options but are computationally and technically challenging.…”

Section: Normal Mode Observationsmentioning

confidence: 99%

SubMachine: Web‐Based Tools for Exploring Seismic Tomography and Other Models of Earth's Deep Interior

Hosseini

Matthews

Sigloch

et al. 2018

Geochem Geophys Geosyst

152

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We present SubMachine, a collection of web‐based tools for the interactive visualization, analysis, and quantitative comparison of global‐scale data sets of the Earth's interior. SubMachine focuses on making regional and global‐scale seismic tomography models easily accessible to the wider solid Earth community, in order to facilitate collaborative exploration. We have written software tools to visualize and explore over 30 tomography models—individually, side‐by‐side, or through statistical and averaging tools. SubMachine also serves various nontomographic data sets that are pertinent to the interpretation of mantle structure and complement the tomographies. These include plate reconstruction models, normal mode observations, global crustal structure, shear wave splitting, as well as geoid, marine gravity, vertical gravity gradients, and global topography in adjustable degrees of spherical harmonic resolution. By providing repository infrastructure, SubMachine encourages and supports community contributions via submission of data sets or feedback on the implemented toolkits.

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Section: Normal Mode Observationsmentioning

confidence: 99%

SubMachine: Web‐Based Tools for Exploring Seismic Tomography and Other Models of Earth's Deep Interior

Hosseini

Matthews

Sigloch

et al. 2018

Geochem Geophys Geosyst

152

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“…As data assimilation and working with numerical modeling output from large‐scale parallel simulations become an integral part of modern scientific research, new tools are required to analyze and conceptualize the information (Anderson et al, ; Billen et al, ; Damon et al, ; Erlebacher et al, ; Jadamec et al, ; Kellogg et al, ; Kreylos et al, ; Suarez et al, ; Wessel et al, ; Zhou & Liu, ). With the new digital framework for research, scientific contributions are taking the form of multiple formats from contributed software (Hwang et al, ; Zhong et al, ) and workflows (Jadamec, ), to large‐scale data sets and integrated parsers (Anderson et al, ; Haxby et al, ; Hutko et al, ; Trabant et al, ), to fully visual formats to communicate the digital and 3‐D information, as in this paper.…”

Section: Discussionmentioning

confidence: 99%

“…As data assimilation and working with numerical modeling output from large-scale parallel simulations become an integral part of modern scientific research, new tools are required to analyze and conceptualize the information (Anderson et al, 2009;Billen et al, 2008;Damon et al, 2008;Erlebacher et al, 2001;Kellogg et al, 2008;Kreylos et al, 2006;Suarez et al, 2008;Wessel et al, 2013;Zhou & Liu, 2017). With the new digital framework for research, scientific contributions are taking the form of multiple formats from contributed software (Hwang et al, 2017;Zhong et al, 2015) and workflows (Jadamec, 2016a), to large-scale data sets and integrated parsers (Anderson et al, 2009;Haxby et al, 2010;Hutko et al, 2017;Trabant et al, 2012), to fully visual formats to communicate the digital and 3-D information, as in this paper. This need has also trickled down into the undergraduate and graduate curriculum, as students are now faced with manipulating large geologic and geophysical data sets, such as LIDAR and 3-D seismic, as well as output from parallel numerical simulations (Jadamec, 2016a;Kellogg et al, 2008).…”

Section: -D Data Visualization Facilitating New Paradigms In Earth Smentioning

confidence: 99%

“…The data show that the geometry of the subducted plates varies significantly both between and within a given subduction zone, including variations in the radius of curvature, dip, and depth of the slab as well as the degree to which subducting plates intersect (Figures and ). To this end, there have been several global compilations of modern slab geometries available as digital data that demonstrate these characteristics (Engdahl & Villaseñor, ; Gudmundsson & Sambridge, ; Hayes et al, ; Jarrard, ; Lallemand et al, ; Li et al, ; Syracuse & Abers, ), as well as results from numerous local studies in terms of a collection of seismic data online (Hutko et al, ). These data are traditionally displayed and conceptualized in a 2‐D format, which has been a very robust approach in terms of analyzing many aspects of slab morphology, including demonstrating the global range in modern slab dips (Figures and ).…”

Section: Introductionmentioning

confidence: 99%

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A Visual Survey of Global Slab Geometries With ShowEarthModel and Implications for a Three‐Dimensional Subduction Paradigm

Jadamec

Kreylos

Chang

et al. 2018

Earth and Space Science

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Increasing volumes of digital data, combined with advances in visualization, allow for a new three‐dimensional (3D) conceptualization of modern subduction systems. Here we present 16 visual exploration sessions with the ShowEarthModel program that interrogate modern slab morphologies on Earth. These virtual voyages through the Earth's interior provide a snapshot into the four‐dimensional evolution of plate tectonics, captured by the modern state of slab structure. Examining the modern subduction system in an interactive 3‐D framework provides an improved conceptualization of the morphology of slabs. The movies demonstrate that unlike the modern mid‐ocean ridge system, modern subduction systems are laterally discontinuous features, making lateral slab edges prevalent. The 3‐D visualizations elucidate the manner in which slabs intersect and overlap, processes that occur in at least six of the Earth's major subduction zones. The observed variability within a given subduction zone as well as the physical presence of intersecting slabs suggests that slab gaps and slab windows are common. The 3‐D rendering shows relative differences in the radius of curvature for arcuate slabs, as well as the variability in dip within a given subduction zone. Addressing the complex geometries of subducted lithosphere in this way can place constraints on outstanding questions of subduction dynamics including slab strength, mantle rheology, mantle flow circulation, and plate‐asthenosphere coupling. By conceptualizing the modern subduction system on Earth in 3‐D space, this paper contributes to the paradigm shift from a two‐dimensional (2‐D) to 3‐D framework for interpreting the subduction process.

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“…The large coseismic slip, captured in the seismic moment M 0 , does not necessarily induce large shaking; slow and very long duration earthquakes of moment magnitude 6 or 7 only radiate weak ground motions (Beroza & Ide, ; Wallace & Beavan, ), while fast, short duration earthquakes of the same size, such as those in the Hindu Kush ranges, Afghanistan (Poli et al, ; Zhan & Kanamori, ), may generate country‐wide damage. The total amount of energy radiated in seismic waves E R may be inferred in the aftermath of the earthquake and is routinely calculated using regional and teleseismic waves (Convers & Newman, ; Hutko et al, ). To quantify the amount of radiation given the size of an earthquake, seismologists measure the scaled energy E S = E R / M 0 .…”

Section: Introductionmentioning

confidence: 99%

Energetic Onset of Earthquakes

Denolle

2019

Geophysical Research Letters

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Earthquake radiation is broadband, and its temporal evolution carries the seismic signature of the rupture process. I use established and develop new observational metrics to quantify the temporal variation in radiated energy (seismic power) and in a time‐dependent scaled radiated energy. Universal functional forms of moment rate, seismic power, and scaled energy arise from a global database of source time functions. Earthquakes radiate mostly and most efficiently in the early stage of development of the rupture that is in the first 10–30% of the overall rupture duration. This result is independent of earthquake magnitude, depth, and focal mechanism. Beyond depth dependence in elastic properties with depth that explain variations in source duration and radiated energy, subtle differences in functional forms exist between shallow and deep earthquakes. Deep events have a slower development than shallow earthquakes, but they carry a higher peak in seismic power.

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Data Products at the IRIS‐DMC: Growth and Usage

Cited by 47 publications

References 21 publications

SubMachine: Web‐Based Tools for Exploring Seismic Tomography and Other Models of Earth's Deep Interior

SubMachine: Web‐Based Tools for Exploring Seismic Tomography and Other Models of Earth's Deep Interior

A Visual Survey of Global Slab Geometries With ShowEarthModel and Implications for a Three‐Dimensional Subduction Paradigm

Energetic Onset of Earthquakes

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