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1
Content available 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.
2
Content available remote Results of the CEGRN'03 /BULREF'03 GPS Campagn
Vassileva K.
Reports on Geodesy
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2004
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nr 4/71
209--217
EN
Strategy, models, results and analysis of the processing of the GPS CEGRN'03/BULREF'03 campaign was presented using Bernese Software, Version 4.2.
3
Content available remote Research on the international geodynamic test-area Plitvice Lakes within CERGOP-2 Project
Medak D., Pribicevic B.
Reports on Geodesy
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2004
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nr 4/71
117--124
EN
Activities on this work-package subgroup include preparation activities at the University of Zagreb, Faculty of Geodesy and field reconnaissance in the area of the Plitvice Lakes National Park. The combination of equipment has been tested in the field and it is now ready to be deployed in the Plitvice Lakes test area. The goal is to measure the Lake Kozjak with the combination of precise bathymetry and RTK GPS (Real Time Kinematics). In the area of Plitvice Lakes, we were looking for the best positions (sky clearance, obstacles, satellite visibility, ground stabilization) for future geodynamic GPS-measurements. At the same time, we have chosen the points which will be used as base points for hydrographic measurements using the RTK-method. The cooperation with the Croatian Hydrometeorological Institute was established in order to compare the datasets of previous hydrological measurements with current situation in the Lakes. In cooperation with the tectonic experts we prepare the structural map of the area of the Plitvice Lakes in order to find better explanation for possible movements of tectonic units in the area. The geological situation is particularly important for hydrologic assessment since the loss of water (lowering of water level) in the lakes is caused by faults.
4
Content available remote Geodynamics of the Tatra Mountain. Report of WP 10.5
Czarnecki K., Mojzes M.
Reports on Geodesy
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2004
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nr 4/71
135--139
EN
The Report of WP 10.5 summarises the research activities in the period from 1.4.2003 to 31.3.2004. The research activities were concentrated to the determination of the preliminary relative velocity vectors and preliminary testing of gravimetric quasigeoid by astronomical measurements in the area of the Tatra Mountain.
5
Content available remote Geodynamics of the Balkan Peninsula within the framework of CERGOP-2
Milev G., Vassileva K.
Reports on Geodesy
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2004
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nr 4/71
163--169
EN
The characteristics of the Balkan Peninsula in geodynamic respect are briefly outlined. The necessity, aims, prerequisites, concepts, methodology and stages of geodynamic investigations are presented. The expected results are formulated. The activities performed so far and the obtained results are discussed. A generalized program for further investigations is developed.
6
Content available remote Evaluations of six years GPS epoch campaign measurements in the Tatra Mountains
Mojzes M., Papco J., Czarnecki K., Walo J.
Reports on Geodesy
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2004
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nr 4/71
141--147
EN
The geodynamic investigation of the Tatra Mountains crust movements is a local subproject of the CERGOP-2/Environment supported by the European Union. This contribution analyzes repeated epoch measurements performed in a special GPS network in order to investigate tectonic motions within the Tatra Mountains region. This GPS network was established in 1998 and consists of 11 sites, 7 in Slovak Republic and 4 in Poland. The size of the investigated area is approximately 40 km by 60 km with maximum relative height difference 1800 m between sites. Epoch measurements were performed annually from 1998 to 2003. Processing of all GPS campaigns was done using the Bernese software 4.2 with the standard procedure. All GPS campaigns were connecting to the nearest five IGS GPS permanent stations. For determination of the velocity vectors two models were used.
7
Content available remote De Broglie's series a model of oscillation of macrocosm
Adamczewski Z.
Reports on Geodesy
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2004
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nr 3/70
89--95
8
Content available remote Status of Availability - Proposed Processing Rules
Stangl G.
Reports on Geodesy
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2003
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z. 3/66
139-143
9
Content available remote Processing of geodynamic GPS-Networks with GAMIT software
Medak D., Pribicevic B.
Reports on Geodesy
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2003
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z. 1/64
75-84
EN
In 1997 the project Basic GPS-Network of the City of Zagreb resulted in a modern, geodetic foundation of high accuracy for the Croatian capitol. More than 4250 points homogeneously covering the wider area of the City were established. Apart from that, the network was planned as the basis for investigations of tectonic movements and related seismic activity of Zagrebacka gora. In 2001, the second GPS-campaign was performed on 40 geodynamic points and similar proeessing techniques were applied to both sets of results. Scientific GPS-software GAMIT was used to process and compare two epochs (1997 and 2001) and the GLOBK module was used for origin analysis and calculation of displacements. In this paper, we describe our experiences with GAMIT and propose its wider use in CERGOP framework. Possible applications of performed measurements and results of interdisciplinary cooperation with other geoscientists are listed, too.
10
Content available remote Analysis of the relative velocities of the EPN - new results after four years
Kostelecký (jr.) J., Kostelecký J.
Reports on Geodesy
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2003
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z. 1/64
121-131
EN
The coordinates of 143 EUREF permanent network (EPN) sites were analysed to find the secular time changes. Analysis is based on weekly combined solutions of EPN using method of finding jumps, trends and periodicities. The method of continuum mechanics is applied for possible geodynamical interpretation.
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