Geomatics and Environmental Engineering
Loading...
ISSN 1898-1135
e-ISSN: 2300-7095
Issue Date
2011
Volume
Vol. 5
Number
No. 2
Description
Journal Volume
Geomatics and Environmental Engineering
Vol. 5 (2011)
Projects
Pages
Articles
Theoretical basis for geodesic clusters
(2011) Dąbrowski, Janusz
Surveying like many other areas of economic life is subject to constant change and transformation. In recent years we can observe increased technological development which is noticeable by a progress in surveying equipment and software. This situation causes the continuing need to purchase newer and newer surveying equipment and the need for continuous further training. In addition, we see devastating market competition among small companies. Moreover, the inability to participate in large, long term projects by small businesses can lead to distortion of their financial stability and ultimately lead to bankruptcy. The author of the article shows the way against the possible adverse changes that have occurred in recent years, which may contribute to the strengthening of small and medium surveying companies.
The content of heavy metals in the alluvial formations of mountain torrent
(2011) Florencka, Natalia
This article presents the content of chosen heavy metals agglomerated in the sediment of bed sand-bank of the mountain torrent, taking into account the fraction volume (amount). Material was taken from several surveying points on the 1.1 km of stream length. Analyzed sediment was characterized by changeability of granulation and abundance of heavy metals. The highest content of chromium, copper, cadmium, nickel, lead and zinc was denoted in the finest fractions ( 0.025 mm), whereas the lowest amount of zinc, chromium and copper was stated in the deposit with diameter 0.5 [formula] 0.25 mm. High nickel concentration was stated in investigated alluvial material (III class of contamination), significantly higher than geological background of the sediments in Poland.
Analysis of circulation of information in local surveying documentation centre
(2011) Hanus, Paweł
In the paper an analysis of circulation of information in local (district) surveying documentation centre, with special attention to problem of period of time of performing the following activities. Analysis includes selected surveying works and course of following procedures of documentation centre connected with accepting documents delivered to the local centre as a result of performed works. A quantity analysis of works, taking into account their kinds, there also has been made. Analyses have been done on the basis of data taken from one of local centre, located in Małopolska region, from 2009.
Small and low-cost mobile mapping systems
(2011) Kolecki, Jakub
Nowadays acquisition of large amount of data for various mapping applications like creation of a terrain, building or a building part models is performed mainly using laser scanners or photogrammetric methods. From early nineties we observe more intensive development of a mobile mapping systems integrating various types of cameras not only with positioning systems like GPS, but also with inertial measurements units (IMU) and other geo-referencing sensors. Such mobile mapping devices have obviously very high prices, are large-sized and have usually very high weight. There are however some lightweight constructions basing on alternative solutions other then those met in expensive commercial systems. The researches conducted among many institutions in the world show that such systems may be in fact constructed using relatively inexpensive devices, available on the market. The accuracy demands could be satisfied for a bulk of mapping applications. This paper addresses the topic of low-cost mobile mapping systems. First of all a few examples of such systems will be presented, and then more detailed overview of geo-referencing technologies will be given.
Analysis and interpretation of relative displacements on the Intra-Sudetic Fault
(2011) Mendela, Małgorzata
Geodynamic investigations conducted in the Sudety Mts. and the Fore-Sudetic Block indicate tectonic mobility of the local geological structures in the form of i.a. dispacement deformations. The researches of the Mid-Sudetic Fault mobility conducted in the third segment of the measurement and control system allow to determine values of the relative displacements, registered i.a. by TM-71 crack gauges. The analysis and interpretation of relative displacements on the Mid-Sudetic Fault are based on data obtained from the TM-7 crack gauge placed in Janowice Wielkie (former uraniom galery). In this paper there are done linear trend analysis of relative displacements (Least Squares and robust M-estimation method), periodicity analysis (Fast Fourier Transform), detection of and analysis of episodic data disturbances to evaluate the Mid-Sudetic Fault mobility (displacement deformations of rock blocks).