Geophysical Data Bases, Processing and Instrumentation
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Publications of the Institute of Geophysics, Polish Academy of Sciences
Series
Publications of the Institute of Geophysics, Polish Academy of Sciences provide original solutions in geophysical measurements, instrumentation, data collections, presentations and analysis.
Recent publications
Ozone Content Variability in the Ground-level Atmosphere Layer in the Mazowieckie Voivodeship, Central Poland
Author(s): Pawlak I., Jarosławski J.
Volume: 429
Series: D-76
DOI: 10.25171/InstGeoph_PAS_Publs-2020-004
Volume: 429
Series: D-76
DOI: 10.25171/InstGeoph_PAS_Publs-2020-004
This publication presents an analysis of the variability of ground-level ozone in the Mazowieckie Voivodeship, Central Poland, in 2005−2012 and the forecast of ground-level ozone for the next day using artificial neural network models. The content of ground-level ozone in a given area is mainly determined by meteorological conditions and the presence of appropriate chemical compounds, i.e. ozone precursors.
Magnetotellurics Data Application in Medium Enthalpy Geothermal Prospects
Author(s): Mutebi D., Nur A., Haryanto A., Wiwid J., Kazinda M.
Volume:
Series:
DOI: 10.25171/InstGeoph_PAS_Publs-2020-003
Volume:
Series:
DOI: 10.25171/InstGeoph_PAS_Publs-2020-003
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 andesitic-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.