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Wyświetlanie 1-2 z 2
Tytuł:
Research on Earth rotation and geodynamics in Poland in 2019–2022
Autorzy:
Bogusz, Janusz
Brzezinski, Aleksander
Godah, Walyeldeen
Nastula, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/43852765.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
analiza szeregów czasowych
deformacja
geodynamika
zdarzenia sejsmiczne
time series analysis
deformation
Earth rotation
geodynamics
seismic events
Opis:
This paper summarizes the activity of the chosen Polish geodetic research teams in 2019–2022 in the fields of the Earth rotation and geodynamics. This publication has been prepared for the needs of the presentation of Polish scientists’ activities on the 28th International Union of Geodesy and Geodynamics General Assembly, Berlin, Germany. The part concerning Earth rotation is mostly focused on the estimation of the geophysical excitation of polar motion using data from Gravity Recovery and Climate Experiment (GRACE) and its follow-on (GRACE-FO) missions, and on the improvement of the determination of Earth rotation parameters based on the Satellite Laser Ranging (SLR), Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS), and Global Navigation Satellite System (GNSS) satellite techniques. The part concerning geodynamics is focused on geodetic time series analysis for geodynamical purposes and monitoring of the vertical ground movements induced by mass transport within the Earth’s system, monitoring of the crustal movements using GNSS and newly applied Interferometric Synthetic Aperture Radar (InSAR), discussing the changes of the landslides and its monitoring using geodetic methods as well as investigations of seismic events and sea-level changes with geodetic methods. Finally, the recent research activities carried out by Polish scientists in the international projects is presented.
Źródło:
Advances in Geodesy and Geoinformation; 2023, 72, 2; art. no. e41, 2023
2720-7242
Pojawia się w:
Advances in Geodesy and Geoinformation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of post-blasting source mechanisms of mininginduced seismic events in Rudna copper mine, Poland
Autorzy:
Caputa, A.
Talaga, A.
Rudziński, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/100792.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Śląski. Wydział Nauk o Ziemi
Tematy:
source mechanism
blasting
foci
analiza
mechanizm
górnictwo
zdarzenia sejsmiczne
kopalnia miedzi Rudna
Polska
Opis:
The exploitation of georesources by underground mining can be responsible for seismic activity in areas considered aseismic. Since strong seismic events are connected with rockburst hazard, it is a continuous requirement to reduce seismic risk. One of the most effective methods to do so is blasting in potentially hazardous mining panels. In this way, small to moderate tremors are provoked and stress accumulation is substantially reduced. In this paper we present an analysis of post-blasting events using Full Moment Tensor (MT) inversion at the Rudna mine, Poland, underground seismic network. In addition, we describe the problems we faced when analyzing seismic signals. Our studies show that focal mechanisms for events that occurred after blasts exhibit common features in the MT solution. The strong isotropic and small Double Couple (DC) component of the MT, indicate that these events were provoked by detonations. On the other hand, post-blasting MT is considerably different than the MT obtained for strong mining events. We believe that seismological analysis of provoked and unprovoked events can be a very useful tool in confirming the effectiveness of blasting in seismic hazard reduction in mining areas.
Źródło:
Contemporary Trends in Geoscience; 2015, 4, 1; 26-38
2299-8179
Pojawia się w:
Contemporary Trends in Geoscience
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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