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1
Content available remote Historia Obserwatorium Hohenpeissenberg
PL
Artykuł zawiera historię najstarszego górskiego obserwatorium meteorologicznego na świecie. Jest nim, położone w południowej Bawarii w Niemczech, obserwatorium Hohenpeissenberg. Z punktu widzenia meteorologii ma ono dużą wartość, gdyż ma m.in. najdłuższą na świecie, jednorodną serię obserwacyjną temperatury powietrza w górach. W pracy ta przedstawiono okoliczności powstania tej instytucji, jej późniejsze zmagania o przetrwanie oraz XX-wieczny rozwój i wzrost znaczenia.
EN
This paper contains history of the oldest mountain meteorological observatory in the world. It is Hohenpeissenberg observatory which is lying in the southern Bavaria in Germany. With a point of view of meteorology it has great value, because it have i.a. the longest, homogeneous observational series of air temperature in the mountains. This article presents circumstances of observatory’s establishment, fight for survival and observed in XX century development and growth of significance.
EN
In the years 2003-2005 in the Lamkowko Satellite Observatory a measuring well equipped with a measuring float was establisshed. This measurement instrument was constructed jointly with Space Research Center of Polish Academy of Sciences. The measuring system enables to detect precisely changes in the level of ground water. The changes in the water level are measured with the accuracy better than 0.1 mm. the obtained accuracy of measuring allows to detect several phenomena: meteorological ones, geodynamics one4s, Earth tides. In this paper, the preliminary results of the first time series of changes of changes in the level of ground water are presented. The time series of these measurements, utilized in this study, cover only 4 months (from January to April 2006). Preliminary results enable to detect diurnal and semidiurnal oscillations.
4
Content available remote Tidal observations astrogeodetic observatory at Jozefoslaw
5
Content available remote New permanent GNSS networks in the Czech Republic and their use in geosciences
EN
In this article the two permanent GNSS networks in the Czech Republic are shortly described. The first one - Czech Positioning System - CZEPOS is being established by the national surveying and mapping authority - Land Survey Office. It is the network of reference slations mainly destinated for users from geodetic and navigation community. The second one is the research and experimental GNSS network - VESOG. This network is jointly created by research and academic institutions. Both networks will be connected. The data from all stations will be usable for geoscientific applications: detected position changes will serve for interpretations in geodynamics, near-real-time data will be used in projects of GPS wound-based meteorology (e.g. TOUGH), real-time data streams will be used for real-time rositioning in the frame of the EUREF-IP project.
7
EN
International concept of renovation of the old tumbledown astronomic observatory at the Mt. Pip-Ivan in Charnohora (Eastern Carpathians) and establishment in it the Ukrainian-Polish scientific station emerged seven years ago as a result of a bilateral initiative of the scientists-geodesists from the University "Lviv Polytechnic" and tbe Warsaw University of Technology. After that, during a whole series of Ukrainian-Polish discussions which incIuded representatives of different scientific institutions, the project of creation of the Ukrainian-Polish geophysical observatory with the permanently working satellite, gravimetric tidal, seismic, magnetic, meteorological and ecological laboratories as wen as with the recreation and tourist centre was developed. It is also envisaged to release in the Cuture this rebuild observatory to the organisation of Central European Initiative (CEl) as the international training and educational centre. In January 2002 the Ukrainian-Polish Coordination Scientific Council was establisbed under the chairmanship of a representative of the Ivano-Frankivsk administration district. The deputy chairmen of this Council are: from the side of Ukraine - Dr Kornelij Tretyak, and from Polish side - Prof. Dr Janusz Sledzinski. In summer 2002 the scientists from Cracow Mining Academy and Lviv Polytechnic carried out successfully the GPS campaign that incorporated few the highest picks in Charnohora including th e Mt. Pip-Ivan. The creation ofthe Ukrainian-Polish geophysical observatory on the top of the highest part of the Eastern Carpathians is commonly recognised as a very nice example of the fruitful and effective cross-border cooperation between Ukraine and Poland. Lately this concept met with approval of the highest government authorities of both countries.
8
Content available remote The modernization of the DGPS reference station in Dziwnów
EN
The area of Pomeranian Bay and the eastern region of Southern Baltic are covered by the DGPS reference station in Dziwnów. The station started transmitting corrections for the GPS system in 1995. The transmission range was too small for continued reception of correction signals aIong the Polish coast, aIso covered by the other station in Rozewie. Consequently, in 2001 a new transmission station was built to increase the signal transmission range. The paper presents the scope of work done during the modernization of aeriaI field in order to extend the Dziwnów station range and the results of signal strength measurements made in summer 2002 in the discussed area are shown.
9
Content available remote Participation of Lamkowko satellite observatory in ionospheric researches
EN
The ionospheric studies have been carried since 1995 by Institute of Geodesy Warmia and Mazury University in Olsztyn jointly with West Department of the IZMIRAN of the Rnssian Academy of the Sciences in Kaliningrad. GPS measurements from 100 European EPN/IGS permanent stations were used to monitor the ionospheric effects of geomagnetic storms. A series of ionosphere maps were produced to present the spatial distribution of TEC. The dense network of GPS stations in Europe allows to obtain high spatial and temporal resolution of TEC. Our estimation technique provided TEC maps with 15min interval and with a spatial resolution of 150-350 km. As the examples we analysed geomagnetic disturbances, which occurred during the months of September 1999 and March 2001. It was found that the storm essentially modified the ionosphere. During the storm the large and medium-seale irregularities were detected in the high-Iatitude ionosphere as well as at middle latitudes. The deep spatial TEC changes were caused by oceurrence of the main ionospheric trough, which during the storm moved in the direction of the Equator (to latitude of about 50 st. N).
EN
International concept of renovation of the old tumbledown astronomic observatory at the Mt. Pip-Ivan in Charnohora (Eastern Carpathians) and establishment in it the Ukrainian- Polish scientific station emerged seven years ago as a result of a bilateral initiative of the scientists-geodesists from the University "Lviv Polytechnic" and the Warsaw University of Technology. After that, during a whole series of Ukrainian-Polish discussions which included representatives of different scientific institutions, the project of creation of the Ukrainian-Polish geophysical observatory with the permanently working satellite. gravimetric tidal, seismic, magnetic, meteorologic al and eeologieal laboratories as well as with the recreation and tourist centre was developed. It is also envisaged to release in the future this rebuild observatory to the organisation of Central European Initiative (CEl) as the international training and educational centre. In January 2002 the Ukrainian-Polish Coordination Scientific Council was established under the chairmanship of a representative of the lvano-Frankivsk administration district. The deputy chairmen of this Council are: from the side of Ukraine - Dr. Kornelij Tretyak, and from Polish side - Prof. Dr. Janusz Śledziński. In summer 2002 the scientists from the Cracow Academy of Mining and Metallurgy and Lviv Polytechnic carried out successfully the GPS campaign that incorporated few the highest picks in Charnohora including the Mt. PipIvan to the geodynamic network of Eastern Carpathians. The creation of the Ukrainian-Polish geophysical observatory on the top of the highest part of the Eastern Carpathians is commonly recognised as a very nice example of the fruitful and effective cross-border cooperation between Ukraine and Poland. Lately this concept met with approval of the highest government authorities of both countries.
EN
The paper describes three experiments performed in Poland, Slovakia and Italy. The experiments concern navigation and positioning of a moving vehicle with the use of GPS satellite system and the corrections from EGNOS satellites. Tests were performed in cooperation of University of Warmia and Mazury in Olsztyn, Poland; University of Trieste, Italy and Air Force Academy in Kosice, Slovakia. Experiments were carried out in the August and September 2002. Different receivers were taking part in the experiments including Ashtech, NovAtel and Magellan receivers. The results of ESTB satellite positioning are compared with performance oC precise RTK - OTF method. Estimation of accuracy of ESTB satellite positioning is done. The results are presented and discussed.
13
Content available remote Gedynamics of Slovenian Karst and Istria
EN
The tectonic map of Slovenian Karst in Istria with the latest displacements determined is presented. On the base of this tectonic map and recent displacements determination in the framework of the CERGOP II, the project operating with GPS measurements on the line between permanent stations Pula - Vilach is presented. At faults with a narrow breaking zone there are foreseen also the classic measurements with the precise distancemeter Kern Mekometer ME 5000 and with a precise theodollite.
14
Content available remote Fixing the observable ship position with the usage of Danish damping function
EN
Fixing the sea object position is the essential task of maritime navigation. It is one of the elements of safe ship leading from one harbour to the other. The methods and the ways of fixing the sea ship position have been developed together with the technical development . New ways of fixing allow for quick and very precise fixing the sea object position. However, it may happen that some of the measurements contain some fatal errors. Such results are called trajectory observations. So far in the navigation practice the observed positions are left out in the process of navigation, according to the IMP ( International Maritime Organizations ) requirements. Nevertheless there are methods of equalling which allow for partial or full elimination of the influence of the trajectory observations on the final co-ordinates of the position of an observed sea object. Such methods are known in geodesy and are called resistant methods. The following article presents the possibility of using one of the methods of resistant equalling to fixing a single sea object position. Experimental damping function, known as Danish function is presented in the suggested method. The adjustment of the Danish method for the maritime navigation needs will be tested on a hypothetical navigational situation.
15
Content available remote DGPS with the use of two reference stations
EN
The paper presents Differential Global Positioning System (DGPS) post processing positioning with the use of two reference stations at the same time. The traditional DGPS is based on one reference/base station. The paper shows that when we use, simultaneously, two reference stations we can analyze distribution of pseudorange corrections over time and model them. Two reference stations used in DGPS positioning give redundant observations thanks to which we can estimate more realistic accuracy of positioning. The paper shows that the use of two reference stations improves DGPS accuracy.
16
Content available remote Determination of stable points in the deformation analysis
EN
The article aims at presenting the implementation of different deformation analysis approaches for determining - on the basis of geodetic observations and with the use of statistical methods-the three-dimensional displacements of a given object. On the test example of a simulated network the analysis of the Hannover, Asanin an Mihailovic approaches has been carried out. Additionally, a comparison regarding the efficiency of stable point identyfication according to the deformation analysis approaches has been made.
17
Content available remote Determination of accuracy and coverage of permanent reference station (DGPS/RTK)
EN
The paper describes the experiment performed in Gdynia in January - February 2003. Permanent reference station in Gdynia equipped with Ashtech Z-FX receiver and Satel 3 AS-Epic radiomodem was used. The corrections were transmitted in the RTCM format. In the project over 30 control points were chosen for testing of accuracy and coverage of DGPS/RTK corrections. The measurement sessions lasted about one hour for each of the control points. The internal memory card of the receiver stored raw observation data (B,E,S-files) as well as C-file with RTK positions (1 second interval). The comparisons between static and real time GPS positioning results as well as catalogue coordinates of control points derived with classical techniques were done. The obtained results were discussed and conclusions for real time satellite positioning using Gdynia DGPS/RTK permanent rererence station are presented.
EN
According to IALA recommendations and ITU-R approval, a new frequency plan for DGPS reference stations in The European Maritime Area was initiated on 19th of September 2001. Radio broadcasting systems of two Polish DGPS reference stations: Rozewie and Dziwnow has been returned to new assigned frequencies. In result it caused a necessity to modify their signal coverages based on former measuring campaigns followed after the transmitting antennas were modernized (Rozewie in 1998 and Dziwnow in 2001). The article presents some results of DGPS signal strength simulation and actual measurements, as well as resulted, common DGPS RS coverage of both stations. Presented calculations were done on a base of the specialization software. For signal attenuation determination, a South Baltic Sea vector chart of the conductivity data was used. In result, the new values for Effective Radiated Power and nominal ranges were established.
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