Episodic construction of the Tatra granitoid intrusion (Central Western Carpathians,Poland/Slovakia): consequences for the geodynamics of Variscan collision and Rheic Ocean closure     

Aleksandra Gawęda  Jolanta Burda  Urs Klötzli  Jan Golonka  Krzysztof Szopa 《International Journal of Earth Sciences》2016,105(4):1153-1174

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Erratum to: Impact of the arc length on GNSS analysis results     

Simon Lutz  Michael Meindl  Peter Steigenberger  Gerhard Beutler  Krzysztof Sośnica  Stefan Schaer  Rolf Dach  Daniel Arnold  Daniela Thaller  Adrian Jäggi 《Journal of Geodesy》2016,90(5):501-501

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The inter-annual variations and the long-term trends of monthly air temperatures in Iraq over the period 1941–2013     

Muslih  Khamis Daham  Błażejczyk  Krzysztof 《Theoretical and Applied Climatology》2017,130(1-2):583-596

Theoretical and Applied Climatology - Mean annual and monthly averages of mean (Tmean), maximum (Tmax) and minimum (Tmin) air temperature from seven stations in Iraq were analysed to detect the...  相似文献   

Normalization algorithms of Hamiltonian near an equilibrium point     

Andrzej J. Maciejewski  Krzysztof Goździewski 《Astrophysics and Space Science》1991,179(1):1-11

Algorithms of linear and nonlinear normalization of a Hamiltonian system near an equilibrium point are described. They were applied to determination of stability libration point in photogravitational restricted problem and to refinement of periodic orbits in the restricted three body problem.  相似文献   

Book review     

Stuart R. Malin  S. J. Gibowicz  Bogusław Domański  Zbigniew Fajklewicz  J. A. Majorowicz  Scott King  Maciej Sadowski  Krzysztof E. Haman 《Pure and Applied Geophysics》1990,132(4):811-824

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“Laser Discoverers” – Web‐based User‐generated Content in Heritage Detection in Poland          下载免费PDF全文

Krzysztof Stereńczak  Rafal Zapłata  Maciej Sztampke  Radomir Bałazy 《Transactions in GIS》2017,21(2):300-316

This article presents the results and potential of using volunteered geographic information (VGI) in heritage detection. Research was completed under the project entitled “Laser Discoverers – non‐invasive examination and documentation of archeological and historical objects in the ?wi?tokrzyskie Voivodeship”, carried out as a part of the Ministry of Science and Higher Education program entitled “The Paths of Copernicus”. Within the project, strong emphasis was placed on promotional and awareness‐raising activities, to involve as many voluntary users as possible. Project participants had at their disposal a web application, which provided access to a digital terrain model (DTM) where they identified possible heritage objects. All samples of data were additionally available in eight variants of sunshine, based on the simulation of sunlight from eight directions and at a constant angle. In total, 5,989 elementary areas with dimensions of 100 × 100 m were used for the project. After conducting a field inventory, Internet users together with specialists were able to recognize several thousands of potential archaeological and historic objects. During the project, approximately 10% of those features were verified through non‐invasive (field survey) work, with 75% success.  相似文献   

Validation of Galileo orbits using SLR with a focus on satellites launched into incorrect orbital planes     

Krzysztof Sośnica  Lars Prange  Kamil Kaźmierski  Grzegorz Bury  Mateusz Drożdżewski  Radosław Zajdel  Tomasz Hadas 《Journal of Geodesy》2018,92(2):131-148

The space segment of the European Global Navigation Satellite System (GNSS) Galileo consists of In-Orbit Validation (IOV) and Full Operational Capability (FOC) spacecraft. The first pair of FOC satellites was launched into an incorrect, highly eccentric orbital plane with a lower than nominal inclination angle. All Galileo satellites are equipped with satellite laser ranging (SLR) retroreflectors which allow, for example, for the assessment of the orbit quality or for the SLR–GNSS co-location in space. The number of SLR observations to Galileo satellites has been continuously increasing thanks to a series of intensive campaigns devoted to SLR tracking of GNSS satellites initiated by the International Laser Ranging Service. This paper assesses systematic effects and quality of Galileo orbits using SLR data with a main focus on Galileo satellites launched into incorrect orbits. We compare the SLR observations with respect to microwave-based Galileo orbits generated by the Center for Orbit Determination in Europe (CODE) in the framework of the International GNSS Service Multi-GNSS Experiment for the period 2014.0–2016.5. We analyze the SLR signature effect, which is characterized by the dependency of SLR residuals with respect to various incidence angles of laser beams for stations equipped with single-photon and multi-photon detectors. Surprisingly, the CODE orbit quality of satellites in the incorrect orbital planes is not worse than that of nominal FOC and IOV orbits. The RMS of SLR residuals is even lower by 5.0 and 1.5 mm for satellites in the incorrect orbital planes than for FOC and IOV satellites, respectively. The mean SLR offsets equal \(-44.9, -35.0\), and \(-22.4\) mm for IOV, FOC, and satellites in the incorrect orbital plane. Finally, we found that the empirical orbit models, which were originally designed for precise orbit determination of GNSS satellites in circular orbits, provide fully appropriate results also for highly eccentric orbits with variable linear and angular velocities.  相似文献   

Erratum to: A consistent combination of GNSS and SLR with minimum constraints     

Susanne Glaser  Mathias Fritsche  Krzysztof Sośnica  Carlos Javier Rodríguez-Solano  Kan Wang  Rolf Dach  Urs Hugentobler  Markus Rothacher  Reinhard Dietrich 《Journal of Geodesy》2015,89(12):1181-1182

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A multiyear analysis of aerosol optical thickness over Europe and Central Poland using NAAPS model simulation     

Aneta E. Maciszewska  Krzysztof M. Markowicz  Marcin L. Witek 《Acta Geophysica》2010,58(6):1147-1163

This study contains a comparative analysis of aerosol optical thickness (AOT) between numerical calculations obtained from the Navy Aerosol Analysis and Prediction System (NAAPS) model and direct observations from the AERONET robotic network and the Saharan Aerosol over WArsaw (SAWA) field campaign. AOT was calculated for 500 nm wavelength. The comparison shows underestimation of the total aerosol optical thickness simulated by NAAPS. The correlation coefficients between model and observation oscillates between 0.57 and 0.72. Results of seven-year (1998–2004) NAAPS simulation of aerosol components (sea salt, mineral dust, sulphate, and smoke) show large temporal and spatial variability of the aerosol optical thickness over Europe. The least polluted region is the Iberian Peninsula, while the highest aerosol burdens occurred in Central Europe, mostly due to anthropogenic sulphate particles. Finally, the analysis of mineral dust transport shows frequent episodes of Saharan dust inflow over Central Europe. There are about 20 days a year (4 days in May) when instantaneous AOT associated with mineral dust aerosol increases over 0.1.  相似文献   

Changes in the Probability of Heavy Precipitation: Important Indicators of Climatic Change   总被引：40，自引：0，他引：40  

Pavel Ya. Groisman  Thomas R. Karl  David R. Easterling  Richard W. Knight  Paul F. Jamason  Kevin J. Hennessy  Ramasamy Suppiah  Cher M. Page  Joanna Wibig  Krzysztof Fortuniak  Vyacheslav N. Razuvaev  Arthur Douglas  Eirik Førland  Pan-Mao Zhai 《Climatic change》1999,42(1):243-283

A simple statistical model of daily precipitation based on the gamma distribution is applied to summer (JJA in Northern Hemisphere, DJF in Southern Hemisphere) data from eight countries: Canada, the United States, Mexico, the former Soviet Union, China, Australia, Norway, and Poland. These constitute more than 40% of the global land mass, and more than 80% of the extratropical land area. It is shown that the shape parameter of this distribution remains relatively stable, while the scale parameter is most variable spatially and temporally. This implies that the changes in mean monthly precipitation totals tend to have the most influence on the heavy precipitation rates in these countries. Observations show that in each country under consideration (except China), mean summer precipitation has increased by at least 5% in the past century. In the USA, Norway, and Australia the frequency of summer precipitation events has also increased, but there is little evidence of such increases in any of the countries considered during the past fifty years. A scenario is considered, whereby mean summer precipitation increases by 5% with no change in the number of days with precipitation or the shape parameter. When applied in the statistical model, the probability of daily precipitation exceeding 25.4 mm (1 inch) in northern countries (Canada, Norway, Russia, and Poland) or 50.8 mm (2 inches) in mid-latitude countries (the USA, Mexico, China, and Australia) increases by about 20% (nearly four times the increase in mean). The contribution of heavy rains (above these thresholds) to the total 5% increase of precipitation is disproportionally high (up to 50%), while heavy rain usually constitutes a significantly smaller fraction of the precipitation events and totals in extratropical regions (but up to 40% in the tropics, e.g., in southern Mexico). Scenarios with moderate changes in the number of days with precipitation coupled with changes in the scale parameter were also investigated and found to produce smaller increases in heavy rainfall but still support the above conclusions. These scenarios give changes in heavy rainfall which are comparable to those observed and are consistent with the greenhouse-gas-induced increases in heavy precipitation simulated by some climate models for the next century. In regions with adequate data coverage such as the eastern two-thirds of contiguous United States, Norway, eastern Australia, and the European part of the former USSR, the statistical model helps to explain the disproportionate high changes in heavy precipitation which have been observed.  相似文献