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Zagrożenia geologiczne w Polsce w 2021 roku

Wojciechowski Tomasz, Laskowicz Izabela, Kos Jarosław, Marciniec Paweł, Uścinowicz Grzegorz, Przyłucka Maria, Wódka Marcin

Przegląd Geologiczny

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2022

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Vol. 70, nr 9

617--626

EN

Geological hazards caused by landslides, earthquakes, erosion, land surface deformation and collapse in 2021 in Poland were among the average compared to recent years. They did, however, affect material losses. The Polish Geological Survey (PGS) recorded 41 events related to sudden landslide activations, which damaged or destroyed 17 road sections. Through ongoing monitoring of 72 landslides, 33 were shown to be active. In 2021, more than 5,200 landslides were identified and inventoried in Poland. Geodynamic monitoring performed by PGS recorded 611 seismic events in Poland, whose magnitudes reached M4.2. In addition, using satellite radar interferometry, continuation of land surface deformations was found mainly in mining areas. In 2021, there was a number of collapses of various origins. The paper is a brief report on the ongoing tasks of the Polish Geological Survey in the field of geological hazards and presents events that took place in Poland in 2021.

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Zagrożenia geologiczne w Polsce w 2020 roku

Wojciechowski Tomasz, Laskowicz Izabela, Nescieruk Piotr, Marciniec Paweł, Uścinowicz Grzegorz, Czerwiński Tomasz, Perski Zbigniew

Przegląd Geologiczny

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2021

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Vol. 69, nr 5

303--311

EN

The paper describes geohazard events that took place in 2020 on the territory of Poland. The PGI is responsible for geohazard monitoring in four areas of interest :landslides and mass movements within the Landslide Counteracting System (LCS, SOPO in Polish), earthquakes within the Geodynamical Monitoring of Poland and ground motions within the Interferometric Terrain Deformations Monitoring of Poland, and coastal monitoring carried out by the Marine Geology Branch within a framework of the 4D Cartography. In 2020, there were no spectacular geohazard events; however, there were some permanently active phenomena, mostly landslides, which caused significant damages to the infrastructure.

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Osuwiska w Polsce : od rejestracji do prognozy, czyli 13 lat projektu SOPO

Marciniec Paweł, Zimnal Ziemowit, Perski Zbigniew, Wojciechowski Tomasz, Rączkowski Wojciech, Laskowicz Izabela, Nescieruk Piotr, Grabowski Dariusz, Kułak Marcin, Wójcik Antoni

Przegląd Geologiczny

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2019

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Vol. 67, nr 5

291--297

EN

Theintensification of disastrous landslide movements in southern Poland occurring at the end of the 20th century, showed that there was a need to create a unified system of acquiring and collecting landslide data. It also indicated the importance of raising awareness of the existence of landslide hazard for both residents and public administration (decision-makers). This was also the reason for launching a nationwide project, the Landslide Counteracting System (LCS; SOPO in Polish). This system is a platform for acquiring and processing information about mass movements in order to support mainly for government and local administration. The main goal of the project is to reduce the landslide riskin Poland,and to limit damages caused by the development of landslides.

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Osuwiska na stokach Magury Witowskiej (Podhale)

Marciniec Paweł, Granoszewski Wojciech, Zimnal Ziemowit

Przegląd Geologiczny

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2019

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Vol. 67, nr 5

405--413

EN

The landslide on the northern slopes of Magura Witowska is an example ofa consequent-structural type oflandslide. It has been developed due to several favorable conditions like: monoclinal layer deposition where the dip angle and direction of collapsing layers are close to those of slope exposition. Moreover, shale packages are commonly present in the bedrock. In the lower part of the landslide an elongated basin filled with peat sediments is situated. The 8-m long profile was recovered with an Instorf sampler for 14C dating and pollen analysis purposes. The results of radiocarbon dating and pollen analysis point to Subboreal and Subatlantic age of these sediments. Undisturbed biogenic sedimentation, lack of minerogenic intercalations together with the unbroken course of pollen succession suggest that the studied landslide has not undergone any significant active events since its formation.