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1

Geodynamics of the Eurasian and Africa–Arabian collision zone as exemplified by the Black Sea–Caspian Sea region

Adamia Shota, Sadradze Nino, Chabukiani Alexander, Lebanidze Zurab, Aphkhazava Maia, Sadradze Guga

Geotourism / Geoturystyka

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2023

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nr 1-2 (72-73)

9--10

EN

The lithosphere structure and geological evolution of the Caucasus and adjacent areas is determined by its position in the continental collision zone between the Eurasian and African-Arabian lithosphere plates, where convergence is still on-going at average rate of movement 10–30 mm/per year. The region located in the central part of the collision zone represents the lithosphere fragments collage of the Tethys Ocean and its continental margins. Within this area the system of island arcs, intra- and back arc bsins existed during Neoproterozoic–Early Cenozoic. Supra-subduction, midocean ridges and within plate magmatic activity took place during Paleozoic–Early Cenozoic. In Late Cenozoic closure of the oceanic and backarc basins took place followed by the continent-continent collision, topography inversion and formation of modern structures in the region (Adamia et al., 1981, 2017; Dercourt et al., 1986). During the pre-collision stage there were not two, but three Tethys branches. The third of them is Van-Khoi oceanic branch. Number of palaeo-subduction zones (two or three?) is still debatable within the academic community. One research group (e.g. Sosson et al., 2010; Barrier et al., 2018) admits existence of two subduction zones: Peri-Arabian and Ankara-Erzincan-Sevan-Zangezur zones, whilst another group including the abstract authors refer to the presence of three subduction zones and aside from abovementioned zones consider the presence of the Khoy Ocean and third subduction zone related to one of the Neotethys branches (Adamia et al., 1981, 2017; Dercour et al., 1986; Stampfli, 2001). According to Adamia et al. (1981, 2017), Dercourt et al. (1986), Daralogöz-South Armenian block and Nakhchevan (SAB) in the Late Paleozoic–Mesozoic–Early Cenozoic represent the part of the Iranian but not the Anatolian Microcontinent.

2

Geodynamics of Sibumasu Block in Southern Thailand: Interpretation from Heat Flow Map

Kongpet Panupong, Kanjanapayont Pitsanupong

Geotourism / Geoturystyka

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2023

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nr 1-2 (72-73)

37--37

EN

Southern Thailand, located on the thick and stable Sibumasu continental block, is known for its high heat flow despite lacking volcanic activity (Sautter et al., 2017). This study employs the Curie Point Depth (CPD) calculation, an indirect method, to evaluate land heat flow (e.g., Hsieh et al., 2014; Li et al., 2017; Qudsi, 2019). By analyzing airborne magnetic data and utilizing spectral analysis, the study generates CPD, thermal gradient, and heat flow maps for southern Thailand (e.g., Carrillo-de la Cruz et al., 2020; Núñez Demarco et al., 2021). The findings reveal heat flow values ranging from 61.54 mW/m² to 154.25 mW/m², with an average of 90.36 mW/m², surpassing the typical heat flow of 65 mW/m² for continental crust (Turcotte & Schubert, 2002). The study identifies five distinct zones characterized by higher heat flow compared to the surrounding areas: the Ranong fault zone (RF), Khlong Marui fault zone (KMF), coastline of Surat Thani and Nakhon Si Thammarat, Trang and Satun zone, and the Bentong-Roab suture (BRS). The RF and KMF represent active strike-slip faults that penetrate the continental crust into the upper mantle (Kanjanapayont et al., 2012; Sautter et al., 2017), while the BRS denotes a weak zone marking the suture between Sibumasu and Indochina terranes (Metcalfe, 2000), potentially extending into the mantle. The elevated heat flow observed along the coastline of Surat Thani and Nakhon Si Thammarat, as well as in the Trang and Satun zone, may be influenced by burial faults or fractures. Interpretation with P-wave tomography suggests a possible high heat mantle anomaly under southern Thailand (Huang et al., 2015). These initial findings suggest that the high heat flow in the thick and stable continental crust of Sibumasu originates from mantle upwelling caused by surrounding subducted plates under Eurasia. These heat sources manifest through weak zones in extensional regimes such as the RF, KMF, and possible undefined burial faults or fractures, as well as the BRS. The study provides preliminary understanding of present-day geodynamics of the Sibumasu block and its potential implications for mineral resources, petroleum exploration, geothermal energy, and carbon capture and storage.

3

Research on Earth rotation and geodynamics in Poland in 2019–2022

Bogusz Janusz, Brzezinski Aleksander, Godah Walyeldeen, Nastula Jolanta

Advances in Geodesy and Geoinformation

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2023

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Vol. 72, no. 2

art. no. e41, 2023

EN

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.

4

Force exerted by gas on material ejected during gas-geodynamic phenomena analysis and experimental verification of theory

Kozieł Katarzyna, Janus Jakub

Archives of Mining Sciences

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2022

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Vol. 67, no. 3

491--508

EN

The analysis of natural hazards, including gas-geodynamic phenomena, requires study of the basic physical processes that take place at each stage of an event. This paper focuses on analysing the transport of fragmented rock material during rock and gas outbursts. Our theoretical considerations and experiments have allowed us to specify and verify the significant forces acting on fragmented rock during its transport, thus determining the speed of grains of each grain class in the stream of expanding gas. The above study may serve as a preface to a wide-ranging quantitative and qualitative energy analysis of the movement of material ejected during Gas-geodynamic phenomena.

5

Upper Silesian Geophysical Observation System - a unit of the EPOS project

Mutke Grzegorz, Kotyrba Andrzej, Lurka Adam, Olszewska Dorota, Dykowski Przemysław, Borkowski Andrzej, Araszkiewicz Andrzej, Barański Adam

Journal of Sustainable Mining

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2019

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Vol. 18, iss. 4

198--207

EN

The aim of the paper is to present the structure and research potential of the newly created measurement and information system for observing dynamic phenomena occurring in the Earth's crust in the Upper Silesian Coal Basin (USCB) in Poland as a result of mining activities. The structure of the system is similar to the one developed for monitoring the movements of the European tectonic plate under the European Plate Observation System (EPOS) programme. The measurement part of the system consists of stationary devices and sensors working in monitoring mode, installed in various locations of the USCB, both on the surface and underground, as well as data sets from periodically performed measurements using land, air and satellite techniques. The IT part of the system will create a local data centre with specialized and dedicated processing and modelling software in which all measurement data will be archived and processed to a form which enables the analysis of the short and long-term impact of mining operations on the environment. As one of the elements of the system will be observations of the short and long-term gravity and morphology changes, the collected data will enable research in the field of the geodynamics of mining areas to be conducted.

6

Research on Earth rotation and geodynamics in Poland in 2015–2018

Bogusz Janusz, Brzezinski Aleksander, Nastula Jolanta

Geodesy and Cartography

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2019

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Vol. 68, no. 1

65--86

EN

This paper summarizes the activity of the chosen Polish geodetic research teams in 2015–2018 in the fields of Earth: rotation, dynamics as well as magnetic field. It has been prepared for the needs of the presentation on the 27th International Union of Geodesy and Geodynamics General Assembly, Montreal, Canada. The part concerning Earth rotation is mostly focused on the use of modelling of diurnal and subdiurnal components of Earth rotation by including low frequency components of polar motion and UT1 in the analysis, study of free oscillations in Earth rotation derived from both space-geodetic observations of polar motion and the time variation of the second degree gravitational field coefficients derived from Satellite Laser Ranging (SLR) and Gravity Recovery and Climate Experiment (GRACE) observations, new methods of monitoring of Earth rotation, as well as studies on applications of the Ring Laser Gyroscope (RLG) for direct and continuous measurements of changes in Earth rotation and investigations of the hydrological excitation of polar motion. Much attention was devoted to the GRACE-derived gravity for explaining the influence of surface mass redistributions on polar motion. Monitoring of the geodynamical phenomena is divided into study on local and regional dynamics using permanent observations, investigation on tidal phenomena, as well as research on hydrological processes and sea level variation parts. Finally, the recent research conducted by Polish scientists on the Earth’s magnetic field is described.

7

A new regard on the tectonic map of the Arabian–African region inferred from th satellite gravity analysis

Eppelbaum L., Katz Y.

Acta Geophysica

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2017

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Vol. 65, no. 4

607--626

EN

Satellite gravimetry is a powerful and reliable tool for regional tectono-geodynamic zonation. The studied region contains intricate geodynamical features (high seismological indicators, active rift systems and collision processes), richest structural arrangement (existence of mosaic blocks of oceanic and continental Earth’s crust of various age), and a number of high-amplitude gravity anomalies and complex magnetic pattern. The most hydrocarbon reserves of the world and other important economic deposits occur in this region. Comprehensive analysis of satellite gravity data with application of different approaches was used to develop a sequence of maps specifying crucial properties of the region deep structure. Careful examination of numerous geological sources and their combined examination with satellite gravity (main), magnetic, GPS, seismic, seismological and some other geophysical data enabled to develop a new tectonic map of the Arabian–African region. Integrated analysis of series of gravity map transformations and certain geological indicators allowed to reveal significant geodynamic features of the region.

8

Neogeodynamics and recent geodynamics at northern prospect area of Petrikov potash deposit, Belarus

Barbikov D. V., Kurlovich D. M., Kutyrlo V.

Przegląd Solny

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2016

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T. 12

72--78

EN

The results of studies of neogeodynamics and recent geodynamics at northern prospect area of Petrikov potash deposit in Belarus are discussed. The models of intensity of neogeodynamic and recent geodynamic processes over the period from the end of Middle Pleistocene to Holocene have been calculated using lineament and structural-geomorphological analysis in ArcGIS 10 on the basis of digital topographic maps of the scale 1 : 5 000, digital orthophotomaps of the scale 1 : 5 000, and free multi-zone satellite images.

PL

W pracy omówiono wyniki badań neogeodynamiki i współczesnej geodynamiki północnej części Pietrykowskiego złoża soli potasowej na Białorusi. Modele przebiegu intensywności procesów neogeodynamicznych i współczesnych geodynamicznych, obejmujące okres od końca środkowego plejstocenu do holocenu, zostały przedstawione w oparciu o analizę strukturalno-geomorfologiczną z wykorzystaniem programu ArcGIS 10. Materiałem bazowym były cyfrowe mapy topograficznych w skali 1:5000, cyfrowe ortofotomapy w skali 1:5000 oraz wielospektralne obrazy satelitarne.

9

Using GNSS technologies for research features vertical movements of the crust of Europe

Tretyak K., Romaniuk V.

Geomatics and Environmental Engineering

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2013

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Vol. 7, no. 2

71--77

EN

In order to study the dynamics of vertical crustal movements it was processed database with 196 stations according to the results of GNSS-observations on the permanent stations. Based on the continuous series of observations we determined the changes of absolute and regional velocity of vertical crustal movements, their spatial distribution and relationship with the tectonic structure of the region. We made the maps of regional rates of vertical crustal movements in the period since 2000-2011. It was also investigated seismic activity in Europe during this period. The accumulated research results indicate the necessity for systematic studies of the impact of various geophysical factors on the stability and permanent displacement of plants and their relation to seismic activity.

PL

W celu zbadania dynamiki pionowych ruchów skorupy ziemskiej przetworzono wyniki obserwacji GNSS z 196 stacji permanentnych. Na podstawie ciągłej serii obserwacji stwierdzono zmiany absolutnej i regionalnych prędkości pionowych ruchów skorupy ziemskiej, analizowano ich rozmieszczenie przestrzenne i zależność od tektonicznej struktury regionu. Wykonano mapy rozkładu regionalnych pionowych ruchów skorupy ziemskiej w latach 2000-2011. Badano również aktywność sejsmiczną w Europie w tym okresie. Uzyskane wyniki wskazują na konieczność systematycznych badań wpływu różnych czynników geograficznych na stabilność kontynentu oraz potwierdzają związek między stałym przemieszczaniem się roślin a aktywnością sejsmiczną.

10

On a lasting role of geodynamics in modern vertical and gravity reference systems

Kryński J., Barlik M.

Reports on Geodesy

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2012

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z. 1/92

61--68

EN

Both definition and realization of vertical reference systems require gravity. Relation between height changes and gravity changes is well known in geodynamics on local, regional, and global scale. Consideration of time as additional dimension is needed in the modern vertical and gravity reference systems as well as in processing both levelling and gravity data. Classical vertical and gravity reference systems are briefly presented followed by the discussion of the need of advanced modification of both systems. Geodynamic aspects in creating modern vertical and gravity reference systems were discussed. The role of geodynamics in the realization of vertical and gravity reference systems was presented with emphasizing the key role of metrology.

11

Gravimetry for geodesy and geodynamics - brief historical review

Krynski J.

Reports on Geodesy

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2012

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z. 1/92

69--86

EN

For last two centuries the role of gravity measurements in geodesy was continuously growing with the development of physical geodesy, growing needs for precise geodetic products and progress in technology. A very condensed historical review of gravimetric surveys with their uncertainty characteristics is given in the paper. It starts with single gravity measurements using simple pendulum through the application of reversible pendulum up to four-pendulum apparatus. Superiority of relative gravity survey over absolute gravity survey using pendulum has been highlighted. Further, the development of static spring gravimeters is briefly presented followed by precise ballistic gravimeters that provide more accurate gravity than relative gravity survey and become a valuable tool for geodynamic research. The concept of superconducting gravimeter and its role in geodynamic research is highlighted. Special emphasis is given to the portable free-fall gravimeter A10 designed for field survey. Also the achievements in the direction of developing atomic absolute gravimeters are briefly mentioned. The evolution of the concept and realization of the gravity control is discussed on the background of the progress in gravimetry, paying special attention on its scale and gravity level. It is illustrated with some examples of evolving Polish national gravity control. Finally an attempt to formulate the concept of modern gravity control is presented.

12

Earth crust deformation in Poland: modelling and its implication for positioning with satellite based geodetic techniques

Rajner M.

Reports on Geodesy

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2012

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z. 1/92

37—46

EN

This paper gives the general overview of the effects which continuously deform our planet. The main aim is to give the picture of the temporal and spatial range of this phenomena and to indicate their importance in high precision positioning with space geodetic techniques. We present here the ranges of magnitude and pattern of earth tides, ocean tidal loading, atmospheric radiation tides loading, polar motion and its oceanic indirect effect, as well as the non-tidal ocean loading. We pay the special attention to loading effects due to atmosphere and continental water storage, which can cause significant changes in point position time series. Our study concentrate mainly on the territory of Poland. The Jozefosław site was chosen as a representative example for the whole country. We present also here the impact of selected phenomena for relative geodetic measurements.

13

The use of GPS data at T-T Zone for the verification of the recent terrestrial reference frames considering possible geodynamic processes

Godah W., Krynski J., Cisak J.

Geoinformation Issues

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2012

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Vol. 4, no. 1(4)

5--13

EN

The interpretation of the geodynamic phenomena with the use of GPS observations strongly depends on the quality of the terrestrial reference frame. The aim of this contribution is to verify station velocities from recent ITRF/ETRF solutions as well as to evaluate the possible geodynamic processes by using long time series of GPS data from four permanent GNSS stations operating in T-T zone. The components of four baselines were calculated with the use of the Bernese v.5.0 GPS software using GPS observation data from 2004–2012. Time variations of baseline components and baseline length were analysed and their linear trends were estimated by applying linear regression analysis. The obtained results have indicated that the variations are within the range from –0.2 to 0.3 mm/year in X–component, from –0.6 to –0.3 mm/year in Y–component, from –0.2 to 0.2 mm/year in Z–component and from –0.2 to 0.6 mm/year for the baseline length. The estimated linear trends of baselines components variations fit substantially better to the respective ones derived from ITRF2008/ETRF2000 (R8) than to the ones from ITRF2005/ETRF2000 (R5).

PL

Możliwość interpretowania zjawisk geodynamicznych na podstawie analizy obserwacji GPS w dużej mierze zależy od jakości ziemskiego układu odniesienia. Celem niniejszej pracy jest zweryfikowanie prędkości stacji uzyskanych ze współczesnych rozwiązań ITRF/ETRF, a także ocena ewentualnych procesów geodynamicznych przy użyciu długiego szeregu czasowego obserwacji na stacjach permanentnych GNSS położonych w rejonie strefy Teisseyre’a-Tornquista. Składowe czterech wektorów obliczono przy użyciu programu Bernese v.5.0 z obserwacji GPS z lat 2004–2012. Poddano analizie zmiany czasowe składowych tych wektorów oraz ich długości; przy wykorzystaniu analizy regresji wyznaczono trendy liniowe tych zmian. Rezultaty analiz wskazują na zmiany w przedziałach -0.2 do 0.3 mm/rok w składowej X, -0.6 do -0.3 mm/ rok w składowej Y, -0.2 to 0.2 mm/ rok w składowej Z oraz -0.2 do 0.6 mm/ rok w długości wektora. Wyznaczone trendy liniowe zmian składowych wektorów wykazują znacząco lepszą zgodność z odpowiednimi zmianami otrzymanymi z rozwiązań w układach ITRF2008/ETRF2000 (R8) niż ze zmianami z rozwiązań w układach ITRF2005/ETRF2000 (R5).

14

Badanie ruchów pionowych obszarów Warszawy i okolic

Margański S., Wierzbicki E., Olszak T.

Acta Scientiarum Polonorum. Geodesia et Descriptio Terrarum

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2011

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Vol. 10, nr 4

5-20

PL

W omawianym opracowaniu podjęto zadanie wyznaczenia ruchów pionowych obszaru Warszawy i najbliższych okolic na podstawie wyników pomiarów krajowej sieci niwelacji precyzyjnej I klasy, wykonanych w ramach II, III i IV kampanii niwelacyjnej. Jako że badany fragment krajowej sieci wysokościowej stanowi sieć wiszącą, nie dowiązaną do jakiegokolwiek poziomu odniesienia w sposób bezpośredni, wyznaczone tutaj wartości ruchów pionowych mają charakter względny i opisują jedynie wewnętrzne deformacje obiektu. Mimo to, jak się okazuje, już jako takie stanowią solidne podłoże do prowadzenia analiz i interpretacji pod kątem działania czynników fizycznych. Przedmiotem badań ruchów pionowych był fragment krajowej podstawowej sieci wysokościowej obejmujący teren Warszawy wraz z terenami przyległymi. Granice badanego obszaru, o rozpiętości około 100 km, stanowiły linie niwelacyjne łączące miejscowości Sochaczew, Wyszogród, Płońsk, Pułtusk, Wyszków, Niegów, Mińsk Mazowiecki, Stara Wieś, Góra Kalwaria, Grójec, Mszczonów. W opracowaniu przedstawiono omówienie materiału źródłowego, algorytm i wyniki poszukiwania bazy punktów odniesienia oraz zarys interpretacji przyczyn otrzymanych ruchów pionowych. Wyniki, przedstawione w postaci map ruchów pionowych, wskazują istotne (rzędu kilku milimetrów na rok) przemieszczenia punktów. Tło tych przemieszczeń wskazuje ich głównie endogeniczny charakter, ale w wynikach widać również echo lokalizacji badanego obszaru w sąsiedztwie strefy T-T. Przedstawiono także analizę przemieszczeń w kontekście stabilizacji znaków wysokościowych, wykazując, że charakter otrzymanych zmian wysokości wyraźnie koresponduje z typem stabilizacji znaków.

EN

The aim of the research was to establish vertical movements in the Warsaw region and surrounding regions, based on measurements of the 1st class national precision leveling network, conducted as part of the 2nd, 3rd and 4th leveling campaigns. As the examined fragment of the national leveling network is not a networked linked directly with any level of reference, the indicated vertical movement values are relative in nature and describe only structure deformations (Grzepkowski, Cacoń 2003). The boundaries of the region, with a span of approx. 100 km, were the leveling lines of the towns of Sochaczew, Wyszogród, Płońsk, Pułtusk, Wyszków, Niegów, Mińsk Mazowiecki, Stara Wieś, Góra Kalwaria, Grójec and Mszczonów. The paper includes an outline of source materials, algorithms and results of the reference point database search as well as a summary of the interpretation of the causes of vertical movements. The technogenic causes of height changes are a dominating factor, but other attempts of interpretation in geological context is also presented. Computed vertical movements are presented in comparison with types of leveling benchmarks stabilization.

15

Wyznaczanie współrzędnych i prędkości stacji na podstawie obserwacji laserowych niskich satelitów

Lejba P., Schillak S.

Biuletyn Wojskowej Akademii Technicznej

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2010

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Vol. 59, nr 2

27-69

PL

W pracy przedstawiono wyniki wyznaczania orbit trzech niskich satelitów Ajisai, Starlette i Stella na podstawie obserwacji laserowych 14 stacji SLR wykonanych w latach 2001-2005. Ponadto wyznaczono geocentryczne i topocentryczne współrzędne oraz prędkości w płaszczyźnie horyzontu i przestrzeni 3D czterech stacji Yarragadee (7090), Greenbelt (7105), Graz (7839) i Herstmonceux (7840). Otrzymane wyniki porównano z wynikami otrzymanymi dla satelitów LAGEOS, układu ITRF2005 oraz dla modelu geologicznego NNR-NUVEL1A. Wszystkie obliczenia przeprowadzono w oparciu o model pola grawitacyjnego Ziemi EIGEN-GRACE02S. Przedstawione rezultaty pokazują, że wyniki obserwacji laserowych niskich satelitów takich jak Ajisai, Starlette, Stella mogą być z powodzeniem wykorzystane do wyznaczania współrzędnych i prędkości stacji SLR.

EN

In this work, the results of satellites orbit determination of three low satellites Ajisai, Starlette, and Stella on the laser observations of 14 SLR stations performed in the years 2001-2005 were presented. The geocentric and topocentric positions and velocities in horizontal plane and in 3-D space of four stations Yarragadee (7090), Greenbelt (7105), Graz (7839), and Herstmonceux (7840) were determined. The received results were compared with the results obtained for LAGEOS and with the ITRF2005 and the geological model NNR-NUVEL1A. All calculations have been made assuming the model of the Earth gravity field EIGEN-GRACE02S. The results presented in this work show that the laser data of low satellites such as Ajisai, Starlette or Stella can be successfully applied for determination of the SLR station positions and velocities.

16

Porównanie wyników wyznaczania współrzędnych technikami GPS i SLR

Schillak S., Lehmann M.

Biuletyn Wojskowej Akademii Technicznej

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2010

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Vol. 59, nr 2

117-134

PL

Przedstawiono wyniki porównania współrzędnych stacji dla dwóch technik satelitarnych: laserowej i GPS. Współrzędne były wyznaczane dla wspólnych momentów w układzie współrzędnych ITRF2005. Porównanie wykonano dla wszystkich stacji wyposażonych w systemy SLR i GPS w okresie jedenastu lat od 1993.0 do 2004.0 bez uwzględnienia stacji laserowych, które zmieniły system w tym czasie. W sumie obliczenia wykonano dla 12 stacji. Współrzędne zostały obliczone dla okresów miesięcznych dla pierwszego dnia każdego miesiąca. Analiza wyników obejmowała ocenę stabilności pozycji stacji, różnice z ITRF2005, porównanie prędkości stacji dla obu technik. Prędkości porównano także z modelem ruchu płyt tektonicznych NNR-NUVEL1A i ITRF2005. Stwierdzono dobrą zgodność pozycji i prędkości stacji dla obu technik. Dla kilku stacji występują znaczne (1-3 cm) różnice w składowej pionowej.

EN

The paper presents results of the comparison of the station positions and velocities between two satellite techniques: Satellite Laser Ranging (SLR) and Global Positioning System (GPS). The coordinates were calculated for common epochs in the International Terrestrial Reference Frame 2005. The comparisons were performed for all stations equipped with the SLR and GPS systems in the period of time from 1993.0 to 2004.0 without SLR stations which changed the system in that time. Finally, calculations were performed for 12 stations. The coordinates were determined for epochs in the first day of each month. The analysis included estimation of the station positions stability, comparison with ITRF2005, station velocities comparison between both techniques. The tectonic plates model NNR-NUVEL1A and ITRF2005 velocities were used for verification of station velocities. Generally, with some exceptions, is a good agreement of the station positions and velocities between results for both techniques. For several stations, significant (1-3 cm) differences between vertical components were detected.

17

Geodynamika centralnej części Górnego Śląska w świetle badań GPS

Jochymczyk K., Zuberek W. M.

Górnictwo i Geoinżynieria

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2009

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R. 33, z. 1

253-261

PL

Badania sejsmologiczne silnych wstrząsów, prowadzone na terenie GZW, wskazują na ich ścisły związek z budową geologiczną tego obszaru. Występujące na tym terenie deformacje powierzchni terenu są wynikiem prowadzenia podziemnej eksploatacji górniczej. Jednak na te deformacje mogą nakładać się wpływy naprężeń tektonicznych. Potwierdzeniem tej tezy może być wykonanie długoterminowych badań geodynamicznych. Interpretacja takich badań w rejonach prowadzenia intensywnej eksploatacji górniczej jest bardzo trudna ze względu na występowanie dużych przemieszczeń, wywołanych przez szkody górnicze. Z tego powodu badania geodynamiczne prowadzone techniką GPS w rejonach górniczych powinny zostać rozszerzone dodatkowo o szczegółowe badania geologiczne oraz sejsmologiczne. W pracy przedstawiono wstępne wyniki pomiarów GPS na 8 punktach położonych południkowo w północnej i centralnej części GZW, pomiędzy Świerklańcem oraz Mikołowem.

EN

The seismological study carried out in the area of the Upper Silesia Coal Basin shows the close connection between strong tremors and geological structure. In this region tectonic stresses can be intensified by other stresses which have occurred owing to mining exploitation. To obtain the most valuable information on this relation leading to its plausible interpretation, it seems to be purposeful and advisable to apply geodynamical investigation. However, such a kind of investigation belongs to a long-term one, and its interpretation is relatively difficult owing to the fact that the area is under the intensive mining exploitation resulting in large dislocation and mining damage. That is why the geodynamical investigation in such troublesome region, despite the use of a high-tech GPS method, should be additionally developed by making detailed geological inspection and seismological research. Moreover, a geological survey should be done with great accuracy in the region of mining activity because it plays a key role in a complex interpretation based on obtained data. In the paper preliminary results of GPS measurements taken from 8 survey points are presented. The survey points were located meridionally in the north and central part of the USCB between Świerklaniec town and Mikołów town.

18

Non tidal plumb line variations observed with help of the long water-tube and horizontal pendulms tiltmetres in Geodynamic Laboratory of PAS in Ksiaz

Kaczorowski M.

Reports on Geodesy

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2008

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z. 2/85

79-86

19

Współczesna aktywnooeć tektoniczna Tatr i Podhala w oewietle wyników badań satelitarnej interferometrii radarowej InAR i PSInSAR

Perski Z.

Przegląd Geologiczny

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2008

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Vol. 56, nr 12

1082-1082

EN

The paper presents some preliminary results of PSInSAR (persistent scatterers SAR interferometry) processing of the Tatra Mts. and Podhale area in southern Poland. The research is carried out within the framework of a GEO-IN-SAR project aimed to study the recent tectonic activity of selected locations in Poland. As the input for PSInSAR processing 51 ERS-1/2 SAR scenes has been used by obtaining 50 interferograms covering the period from 1992 to 2000. The resulted few hundred PS (Persistent Scatterers) points show relative 1 mm/year uplift of the Zakopane area in respect to Nowy Targ. However, the preliminary interpretation along the transect Zakopane–Nowy Targ shows more complex pattern suggesting recent activity of some faults.

20

Współczesna aktywność geodynamiczna wybrzeża Bałtyku w świetle wyników badań satelitarnej interferometrii radarowej InSAR i PSInSAR

Perski Z., Mróz M.

Archiwum Fotogrametrii, Kartografii i Teledetekcji

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2008

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Vol. 18b

509--518

PL

Badania rejonu Zatoki Gdańskiej oraz Półwyspu Sambijskiego prowadzone były w ramach projektu GEO-IN-SAR, którego celem było wykorzystanie najnowocześniejszych osiągnięć satelitarnej interferometrii radarowej (InSAR) do pomiaru zachodzących współcześnie, naturalnych ruchów powierzchni terenu na obszarze Polski i terenach przygranicznych. Dla badań wytypowane zostały trzy poligony badawcze: rejon półwyspu Sambia nawiedzonego przez silne trzęsienie Ziemi we wrześniu 2004 oraz rejon Gdańska i Elbląga. W ramach projektu została przeprowadzona analiza PSInSAR dla scen satelitarnych obejmujących swym zasięgiem rejon półwyspu Sambia i Gdańska, na poligonach badawczych zlokalizowanych w rejonach Kaliningradu, Bałtijska, Gdańska i Elbląga. Do analiz wykorzystano łącznie 117 obrazów z satelitów ERS-1 i ERS-2, na podstawie których wygenerowano odpowiednio 57 interferogramów dla obszaru Gdańska i 60 dla rejonu płw. Sambia. Dla wszystkich poligonów uzyskano zadowalające zagęszczenie rozpraszaczy stabilnych. Wyniki pomiarów deformacji wskazują na istnienie pionowych ruchów terenu o genezie geodynamicznej jak i antropogenicznej.

EN

Within the framework of the GEO-IN-SAR project, a study was carried out in the Gulf of Gdańsk and on the Sambia Peninsula. The project was aimed at applying the newest achievements in SAR interferometry to measure recent natural terrain vertical movements in Poland and in adjacent areas. Three areas in which substantial movements were expected selected as study sites: Sambia/Gdansk, Wrocław and Podhale, and Sambia Warmia. An additional reason for including the Sambia/Gdansk area was its high seismic activity: on 21 September 2004, the area was affected by a relatively strong (M=4 to 5) earthquake. PSInSAR analysis was completed for the ERS-1/2 SAR scenes (two separate frames) covering the Sambia Peninsula and the Gulf of Gdańsk coast. 117 SAR scenes were used and detailed analyses were performed for the following locations: Gdańsk, Elbląg, Kaliningrad, and Baltijsk. PSInSAR results for all the locations mentioned showed evidence of surface movements. The origin of that deformation might be related to shallow geology and industrial activity (Gdańsk, Elbląg) as well as to seismotectonics (Kaliningrad and Baltijsk).