14 research outputs found
Jelenkori folyĂłvizi felszĂnformálĂł tevĂ©kenysĂ©g Ă©s a szabályozások hatásainak vizsgálata a Tiszán Ă©s a Maroson = Fluvial processes and the effects of river regulation works on the Tisza and Maros Rivers
A kutatás cĂ©lja a meder Ă©s a hullámterek fejlĹ‘dĂ©sĂ©nek vizsgálata. Terveink szerint a mĂ©rĂ©seket a Tiszán Ă©s a Maroson vĂ©geztĂĽk volna, de kĂ©sĹ‘bb kiterjesztettĂĽk a Hernádra Ă©s a Drávára is. A mederfejlĹ‘dĂ©st a meder morfometriai paramĂ©tereinek hosszĂştávĂş alakulása alapján mĂ©rtĂĽk, Ă©s vizsgáltuk befolyásolĂł tĂ©nyezĹ‘it is (vĂzállás-tartĂłsság, vĂzjárás változás, partfal-állĂ©konyság, növĂ©nyzet, tektonizmus Ă©s emberi lĂ©tesĂtmĂ©nyek). A kanyarulatfejlĹ‘dĂ©st rĂ©szletesebben vizsgáltuk, ugyanis a Tiszán egyre szűkebb Ă©s kisebb kanyarulatok alakultak ki, rontva a meder vĂzszállĂtĂł kĂ©pessĂ©gĂ©t. A mederszelvĂ©ny Ă©s a vĂzsebessĂ©g profilok alakulását árvizekkor Ă©s egy hidrolĂłgiai Ă©v során vizsgáltuk, megállapĂtva, hogy a meder a legmĂ©lyebb az áradĂł idĹ‘szak vĂ©gĂ©n, mĂg tetĹ‘zĂ©skor megkezdĹ‘dik az akkumuláciĂł, amit az izotachok fel- Ă©s leszállása is alátámaszt. A hullámterek változásainak vizsgálatakor az akkumuláciĂł mĂ©rtĂ©kĂ©nek meghatározására illetve az ezt befolyásolĂł tĂ©nyezĹ‘k vizsgálatára koncentráltunk. MegállapĂtottuk, hogy minden árhullám egyedi mĂłdon viselkedik, igen eltĂ©rĹ‘ mennyisĂ©gű ĂĽledĂ©ket halmoz fel, bár a felhalmozott ĂĽledĂ©k mintázata Ă©s szemcseösszetĂ©tele hasonlĂł. HosszĂştávĂş akkumuláciĂłt az ĂĽledĂ©k vizsgálatával Ă©s DDM segĂtsĂ©gĂ©vel mĂ©rtĂĽnk. Az akkumuláciĂłt befolyásolĂł növĂ©nyzeti Ă©rdessĂ©g alakulását a 2006-os árvĂz során sebessĂ©gprofilok felvĂ©telĂ©vel Ă©s hosszĂş távon is vizsgáltuk, megállapĂtva, hogy ez az egyik olyan kulcsfontosságĂş tĂ©nyezĹ‘, ami az árterek vĂzvezetĹ‘ kĂ©pessĂ©gĂ©t rontja. | The aim of the research was to measure the rate of active fluvial processes. Measurements were carried out on the Tisza, Maros, Hernád and Dráva Rivers. The long-term channel development was studied by morphometric parameters and its influencing factors were also evaluated (i.e. stage frequency, regime alterations, bank stability, vegetation, tectonism and human activity). Meander development was studied in details, as the bends of the Tisza tend to be narrower and smaller decreasing the water transport capacity of the channel. The cross-sectional changes and velocity profiles were evaluated during floods and within a hydrological year. Scour and velocity is the greatest in the end of the rising stage of a flood, but during the peak-flood period accumulation is dominant as the velocity profile shifts upwards. During the analysis of floodplain development the process of aggradation and its influencing factors were studied in details. Each flood is unique, as the amount of deposited sediment varied within great scale, however, the pattern and grain-size distribution of the sedimentation was similar. Long-term floodplain accumulation was measured using sediment profiles and DTM. Vegetational roughness as an influencing factor was evaluated by velocity measurements during the 2006 flood and by patch analysis. We concluded that vegetational roughness is the most important factor in decreasing the flood conductivity of the floodplains
Application of GIS for a Climate Change Prepared Disaster Management in Csongrád County, Hungary
The work of disaster management can only properly be supported by data stored in certified databases, since correct decisions can be made on the base of such data. Nowadays these data can be found in databases managed by several organisations, or only a part of the necessary data is available through GIS services. The tasks of disaster management include prevention, i.e. the preparation for potential incidents and the elaboration of related scenarios and plans taking into consideration the altering risk landscape caused by climate change. The development of modelling processes and applications based on GIS databases and the integration of the results in work processes gain ground more and more in this work phase. Geoinformatics is able to provide support for decision-making in two ways: in strategic planning and in the operative task solution. The present study demonstrates a multi-hazard multi-scale GIS tool development in Csongrád County (Hungary) in accordance with the aims of the Sendai Framework. This geoinformatic tool is applicable to support the decision-making not only of the management board but the deployed rescue units in case of an evacuation through the optimized locations of the gathering places
A 2005. tavaszi árvĂz által okozott ártĂ©rfeltöltĹ‘dĂ©s a Maros Ă©s a KözĂ©p-Tisza egy rövid szakasza mentĂ©n = Floodplain aggradation caused by the spring flood of 2005, along short sections of Maros and Middle-Tisza rivers
Compared to earlier ones the spring flood of 2005 was not unique nor hydrologically nor in terms of accumulation. The amount of aggradation decreased exponentially from the river bed. The greatest accumulation was measured along point bars and levees, further, it dropped radically. Far from the channel the morphology of the floodplain determines the aggradation, as it increased along the ox-bows. As the sediment discharge of the Maros is far more than of the Tisza, the amount of accumulated sediment was the same, though, the flood lasted twice longer on the Tisza
Csomagológépek cseréje a Legero Kft.-nél 2020-ban
INST: Szakdolgozatok (Közgazdaságtudományi IntĂ©zet)A Legero Kft. az egy nagy hálĂłzat rĂ©sze. Osztrák cĂ©grĹ‘l van szĂł, viszont az egĂ©sz világon jelen vannak. A Körmendi Központi Raktárban, ahol a szakdolgozatom kĂ©szĂĽlt, a cipĹ‘k raktározásával, cĂmkĂ©zĂ©sĂ©vel, valamint elszállĂtásával foglalkoznak. A cipĹ‘k raktározása több folyamatot ölel fel. Ezeknek a gĂ©peknek a cserĂ©jĂ©t mutatja be a szakdolgozat. Az ötlettĹ‘l kezdve az Ăşjonnan beszerelt, használatra kĂ©sz gĂ©pig