A new database structure for the IHFC Global Heat Flow Database

Fuchs, Sven; Beardsmore, Graeme; Chiozzi, P.; Espinoza-Ojeda, Orlando Miguel; Gola, Gianluca; Gosnold, Will; Harris, Robert N.; Jennings, S. Gregory; Liu, Shaowen; Negrete-Aranda, R.; Neumann, Florian; Norden, Ben; Poort, Jeffrey; Rajver, Dušan; Ray, Labani; Richards, Maria; Smith, J. D.; Tanaka, Akiko; Verdoya, Massimo

doi:10.31214/ijthfa.v4i1.62

Cited by 31 publications

(19 citation statements)

References 7 publications

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“…(b) Regional topographic map. The yellow circles are heat flow measurements (Fuchs et al., 2021). The pink dashed lines show the major magnetic anomalies (Weissel, 1980).…”

Section: Introductionmentioning

confidence: 99%

Downgoing Plate‐Buoyancy Driven Retreat of North Sulawesi Trench: Transition of a Passive Margin Into a Subduction Zone

Dong

Lü

Zhang

et al. 2022

Geophysical Research Letters

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The transition of a passive continental margin into a subduction zone remains a hypothesis because few geological cases have been reported. The North Sulawesi subduction zone is a 5–9 myr system in Southeast Asia that has evolved from a passive continental margin and has long been overlooked by studies of passive to active margin transitions. Here we compare geophysical evidence from the region with our numerical simulation results. We find that the initial subduction of North Sulawesi relies on horizontal stress, where the trench retreat depends on the negative buoyancy of the oceanic lithosphere. Furthermore, less space available for subduction leads to reduced mantle flow caused by subduction and slower trench retreat. These new dynamical constraints indicate that the negative buoyancy of the oceanic plate is a key factor for the trench retreat, even though subduction initiated was induced.

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“…(b) Regional topographic map. The yellow circles are heat flow measurements (Fuchs et al., 2021). The pink dashed lines show the major magnetic anomalies (Weissel, 1980).…”

Section: Introductionmentioning

confidence: 99%

Downgoing Plate‐Buoyancy Driven Retreat of North Sulawesi Trench: Transition of a Passive Margin Into a Subduction Zone

Dong

Lü

Zhang

et al. 2022

Geophysical Research Letters

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“…The database is currently in the process of transformation into a modern database framework. The database was reviewed last year in terms of structure and quality criteria by scientists experienced with heat flow data (Fuchs et al., 2021). This agreement builds the basis for the on‐going reassessment of the database.…”

Section: Global Collaboration Technology Transfer and Application Rep...mentioning

confidence: 99%

Tectonophysics Perspectives on Integrated, Coordinated, Open, Networked (ICON) Science

Abbey¹,

Choi

Neumann

et al. 2022

Earth and Space Science

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This article is composed of two independent opinion pieces about the state of integrated, coordinated, open, and networked (ICON) principles (Goldman et al., 2021, https://doi.org/10.1029/2021EO153180; Goldman et al., 2022, https://doi.org/10.1029/2021ea002099) in Tectonophysics and discussion on the opportunities and challenges of adopting them. Each opinion piece focuses on a different topic: (a) global collaboration, technology transfer and application, reproducibility, and data sharing and infrastructure; and (b) field, experimental, remote sensing, and real‐time data research and application. Within tectonophysics science, ICON‐FAIR principles are starting to be adopted and implemented, however they have not become frequent and there are still plenty of opportunities for further development. During the last decade, standardization reduced fragmentation, facilitated openly available databases, and enabled different modeling methods to be combined. On the other hand, integration and coordination remained insufficient as exemplified by numerous geophysical interpretation programs running on different platforms, lacking the proper documentation and with diverse output formats. We agree that adapting the principles of ICON‐FAIR brings high efforts and risks, but in the end, it has great benefits and potential in the tectonophysics community.

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“…Heat flow values are sometimes corrected for topographic factors, but not always, and it can be difficult to determine if such corrections have been applied in older studies. Such clarifications are within the scope of the ongoing Global Heat Flow Data Assessment Project of the IHFC catalogue (Fuchs et al, 2021a).…”

Section: Introductionmentioning

confidence: 99%

Properties and biases of the global heat flow compilation

et al. 2022

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Geothermal heat flow is inferred from the gradient of temperature values in boreholes or short-penetration probe measurements. Such measurements are expensive and logistically challenging in remote locations and, therefore, often targeted to regions of economic interest. As a result, measurements are not distributed evenly. Some tectonic, geologic and even topographic settings are overrepresented in global heat flow compilations; other settings are underrepresented or completely missing. These limitations in representation have implications for empirical heat flow models that use catalogue data to assign heat flow by the similarity of observables. In this contribution, we analyse the sampling bias in the Global Heat Flow database of the International Heat Flow Commission; the most recent and extensive heat flow catalogue, and discuss the implications for accurate prediction and global appraisals. We also suggest correction weights to reduce the bias when the catalogue is used for empirical modelling. From comparison with auxiliary variables, we find that each of the following settings is highly overrepresented for heat flow measurements; continental crust, sedimentary rocks, volcanic rocks, and Phanerozoic regions with hydrocarbon exploration. Oceanic crust, cratons, and metamorphic rocks are underrepresented. The findings also suggest a general tendency to measure heat flow in areas where the values are elevated; however, this conclusion depends on which auxiliary variable is under consideration to determine the settings. We anticipate that using our correction weights to balance disproportional representation will improve empirical heat flow models for remote regions and assist in the ongoing assessment of the Global Heat Flow database.

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A new database structure for the IHFC Global Heat Flow Database

Cited by 31 publications

References 7 publications

Downgoing Plate‐Buoyancy Driven Retreat of North Sulawesi Trench: Transition of a Passive Margin Into a Subduction Zone

Downgoing Plate‐Buoyancy Driven Retreat of North Sulawesi Trench: Transition of a Passive Margin Into a Subduction Zone

Tectonophysics Perspectives on Integrated, Coordinated, Open, Networked (ICON) Science

Properties and biases of the global heat flow compilation

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