- A - Physics of the Earth's Interior
- B - Seismology
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C - Geomagnetism
C-118, C-117, C-116, C-115, C-114, C-113, C-112, C-111, C-110, C-109, C-108, C-107, C-106, C-105, C-104, C-103, C-102, C-101, C-100, C-99, C-98, C-97, C-96, C-95, C-94, C-93, C-92, C-91, C-90, C-89, C-88, C-87, C-86, C-85, C-84, C-83, C-82, C-81, C-80, C-79, C-78, C-77, C-76, C-75, C-74, C-73, C-72, C-71, C-70, C-69, C-68, C-67, C-66, C-65, C-64, C-63, C-62, C-61, C-60, C-59, C-58, C-57, C-56, C-55, C-54, C-53, C-52, C-51, C-50, C-49, C-48, C-47, C-46, C-45, C-44, C-43, C-42, C-41, C-40, C-39, C-38, C-37, C-36, C-35, C-33, C-32, C-31, C-30, C-29, C-28, C-27, C-26, C-25, C-24, C-23, C-22, C-21, C-20, C-19, C-18, C-17, C-16, C-15, C-14, C-13, C-12, C-11, C-10, C-9, C-8, C-7, C-6, C-5, C-4, C-3, C-2, C-1
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D - Physics of the Atmosphere
D-79, D-78, D-77, D-76, D-75, D-74, D-73, D-72, D-71, D-70, D-69, D-68, D-67, D-66, D-65, D-64, D-63, D-62, D-61, D-60, D-59, D-58, D-57, D-56, D-55, D-54, D-53, D-52, D-51, D-50, D-49, D-48, D-47, D-46, D-44, D-45, D-43, D-42, D-41, D-40, D-39, D-38, D-37, D-35, D-34, D-33, D-32, D-31, D-30, D-28, D-27, D-26, D-25, D-24, D-23, D-22, D-21, D-20, D-19, D-18, D-17, D-16, D-15, D-14, D-13, D-12, D-11, D-10, D-9, D-8, D-7, D-6, D-5, D-4, D-3, D-2, D-1
- E - Hydrology
- P - Polar Research
- M - Miscellanea
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Online First
Online First
Application of the MATLAB bvp4c Solver in the Linear Stability Analysis of Some Magnetohydrodynamic Problems
Abstract:
We present our own ready-to-use MATLAB script that uses bvp4c, namely, the built-in MATLAB solver designed to solve boundary value problems with unknown parameters. The script is used to study the linear stability of an exemplary system of ordinary differential equations with appropriate boundary conditions, which have the form of the eigenvalue problem. These equations are classical equations of magneto-hydrodynamics describing a layer of electrically conductive fluid in a magnetic field, in which, under the assumptions made, magnetorotational and magnetic buoyancy in-stabilities may occur, both associated with some important astrophysical phenomena. We present sample results where we successfully use the bvp4c solver to solve those equations and find eigenvectors and eigenvalues of the most unstable linear perturba-tions of the assumed basic state.
Seven Decades of Publishing with the Institute of Geophysics, Polish Academy of Sciences
Abstract:
Seven years have passed since the last brief outline of the editorial output of the Institute of Geophysics, Polish Academy of Sciences, was published (Dziembowska and Wernik 2014); the present text is a continuation and updating of this article, adding the developments over the last decade. The basic three publications have been successfully expanding, in terms of both in the number of issues, and, more importantly, in their scientific value and influenciality in the scientific world. These are: Acta Geophysica, GeoPlanet Book Series, and Publications of the Institute of Geophysics, Polish Academy of Sciences.
Magnetotellurics Data Application in Medium Enthalpy Geothermal Prospects
DOI: 10.25171/InstGeoph_PAS_Publs-2020-003
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Abstract:
The research is aimed at delineating the reservoir and defining the geothermal system of Lili-Sepporaki through the interpretation of magnetotellurics data. Lili-Sepporaki is an ande-sitic-trachytic volcanic rich geothermal prospect located in western Sulawesi Province, Indonesia. In essence, hydrothermal conditions affect the properties of rocks, such as resistivity, and this can be studied using magnetotellurics, a passive electromagnetic technique. Magnetotellurics data were processed and interpreted using Phoenix and WinGLink software programs. A total of five two-dimensional resistivity models and five elevation maps were produced, and these showed a general decrease in rocks’ resistivity with depth. The analysis found out that the reservoir stretches from the center, northwards. The reservoir substantially starts to be seen at a depth of 600 m below sea level and deepens towards the east and north-west. Another magnetotelluric survey should be carried out with more stations, mainly aimed at a three-dimensional inversion, to get a detailed geothermal model and also to study the dense, low resistive structure in the southeast.