Article information

2020 , Volume 25, ¹ 2, p.103-118

Chuvaev A.V., Baranov A.A., Bobrov A.M.

Numerical modelling of mantle convection in the Earth using cloud technologies

We present an example of the realization of a geophysical data processing cluster in a cloud technology model. Cloud technologies can increase the efficiency of computing resources due to their virtualization and ensuring elasticity. The proposed architecture allows reducing the time of numerical modelling by decreasing the time on reconfiguring computing resources in accordance with research requirements. As an example of testing the solution, the problem of numerical modelling of spherical mantle convection based on seismic tomography data was taken. The Stokes equation is solved by the finite element method using CitcomS code. The results of three-dimensional modelling of global mantle convection are presented. Calculations demonstrate the structure of mantle flows in modern Earth. Under the continents, with the exception of East Africa, Southeast and East Asia and West Antarctica, there are downward mantle flows and negative temperature anomalies. The descending mantle flow under Eurasia and the ascending flow under the Arctic push North Eurasia to the south, is causing stresses in the crust and orogenic processes within Eurasia. Another powerful downward mantle flow occurs between North and South America in the Caribbean subduction zone. Ancient cratons are characterized by cold regions in the mantle beneath them. Under East Africa, there is a positive temperature anomaly and an upward mantle flow, responsible for the East African Rift System. A similar anomaly is also found in the Baikal rift zone. A global ascending mantle flow forms under the Pacific Ocean.

[full text]
Keywords: processing of geophysical data, three-dimensional numerical modelling, mantle convection, virtualization, seismic tomography

doi: 10.25743/ICT.2020.25.2.009

Author(s):
Chuvaev Andrey Viktorovich
Position: Senior Fellow
Office: Russian Technological University
Address: 119454, Russia, Moscow, 78 Vernadsky Avenue
E-mail: achuv@yandex.ru

Baranov Alexey Andreevich
PhD.
Position: Leading research officer
Office: Institute of the Physics of the Earth
Address: 123242, Russia, Moscow, Bolshaya Gruzinskaya str., 10-1
E-mail: baranov@ifz.ru
SPIN-code: 3827-4224

Bobrov Aleksandr Marovich
PhD.
Position: Leading research officer
Office: Institute of the Physics of the Earth
Address: 123242, Russia, Moscow, Bolshaya Gruzinskaya str., 10-1
E-mail: a_m_bobrov@yahoo.com
SPIN-code: 5119-6894

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Bibliography link:
Chuvaev A.V., Baranov A.A., Bobrov A.M. Numerical modelling of mantle convection in the Earth using cloud technologies // Computational technologies. 2020. V. 25. ¹ 2. P. 103-118
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