TY - JOUR AU - Delai, F AU - Kiss, Tímea AU - Nagy, Judit TI - Field-based estimates of floodplain roughness along the Tisza River (Hungary): The role of invasive Amorpha fruticosa JF - APPLIED GEOGRAPHY J2 - APPL GEOGR VL - 90 PY - 2018 SP - 96 EP - 105 PG - 10 SN - 0143-6228 DO - 10.1016/j.apgeog.2017.11.006 UR - https://m2.mtmt.hu/api/publication/3310128 ID - 3310128 N1 - Cited By :3 Export Date: 24 September 2019 Correspondence Address: Delai, F.; Department of Physical Geography and Geoinformatics, University of Szeged, Egyetem u. 2-6, Hungary; email: fabio.delai@yahoo.it Funding details: OTKA 119193 Funding text 1: This research was supported by Tempus Public Foundation (TPF) and the Hungarian Research Found (OTKA 119193 ). The authors would like to thank Ernő Kovács for the great help during the various phases of fieldwork. LA - English DB - MTMT ER - TY - CHAP AU - Szabó, Gergely AU - Bertalan, László AU - Barkóczi, Norbert AU - Kovács, Zoltán AU - Burai, Péter AU - Lénárt, Csaba ED - Gianluca, Casagrande ED - Sik, András ED - Szabó, Gergely TI - Zooming on Aerial Survey T2 - Small Flying Drones: Applications for Geographic Observation PB - Springer Netherlands CY - Zürich SN - 9783319665771 PY - 2018 SP - 91 EP - 126 PG - 36 DO - 10.1007/978-3-319-66577-1_4 UR - https://m2.mtmt.hu/api/publication/3289058 ID - 3289058 AB - The aim of this chapter is to provide a general overview about the main components of a developed UAS mapping system, the survey, and processing procedure. At frst (4.1), a brief introduction is given about basic operational elements and accessories of UAS. Then, recent camera/sensor technologies allowing various survey solutions are going to be discussed. Once these hardware components are presented, the detailed workflow of a basic UAV-based mapping procedure is described (4.2). A further discussion focuses not only on the analytical or planning phases but also on providing useful information on the operational and processing parts as well (4.3). Then, there comes image acquisition and project planning (4.4). The photogrammetry-based image processing requires detailed expertise and attention; Sect. 4.5 maybe helpful to avoid potential mistakes. The last section (4.6) summarizes some aspects of the use of LiDAR technologies in UAV-based surveys. LA - English DB - MTMT ER - TY - JOUR AU - Kis, Éva AU - Lóczy, Dénes TI - Természeti és antropogén tényezők szerepe az Alsó-Tisza menti partfal-instabilitások kialakulásában = Natural and Anthropogenic Factors Generating Riverbank Instabilities along the Lower Tisza River JF - FÖLDRAJZI KÖZLEMÉNYEK J2 - FÖLDRAJZI KÖZLEMÉNYEK VL - 142 PY - 2018 IS - 4 SP - 328 EP - 343 PG - 16 SN - 0015-5411 DO - 10.32643/fk.142.4.5 UR - https://m2.mtmt.hu/api/publication/30331410 ID - 30331410 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Bertalan, László AU - Novák, Tibor József AU - Németh, Zoltán AU - Jesús, Rodrigo-Comino AU - Kertész, Ádám AU - Szabó, Szilárd TI - Issues of Meander Development: Land Degradation or Ecological Value? The Example of the Sajó River, Hungary JF - WATER J2 - WATER-SUI VL - 10 PY - 2018 IS - 11 PG - 21 SN - 2073-4441 DO - 10.3390/w10111613 UR - https://m2.mtmt.hu/api/publication/30315457 ID - 30315457 N1 - Cited By :2 Export Date: 28 August 2019 Correspondence Address: Bertalan, L.; Department of Physical Geography and Geoinformatics, University of Debrecen, Egyetem tér 1, Hungary; email: bertalan@science.unideb.hu Cited By :8 Export Date: 26 October 2020 Correspondence Address: Bertalan, L.; Department of Physical Geography and Geoinformatics, University of Debrecen, Egyetem tér 1, Hungary; email: bertalan@science.unideb.hu AB - The extensive destruction of arable lands by the process of lateral bank erosion is a major issue for the alluvial meandering type of rivers all around the world. Nowadays, land managers, stakeholders, and scientists are discussing how this process affects the surrounding landscapes. Usually, due to a land mismanagement of agroforestry activities or urbanization plans, river regulations are designed to reduce anthropogenic impacts such as bank erosion, but many of these regulations resulted in a degradation of habitat diversity. Regardless, there is a lack of information about the possible positive effects of meandering from the ecological point of view. Therefore, the main aim of this study was to investigate a 2.12 km long meandering sub-reach of Sajo River, Hungary, in order to evaluate whether the process of meander development can be evaluated as a land degradation processes or whether it can enhance ecological conservation and sustainability. To achieve this goal, an archive of aerial imagery and UAV (Unmanned Aerial Vehicle)-surveys was used to provide a consistent database for a landscape metrics-based analysis to reveal changes in landscape ecological dynamics. Moreover, an ornithological survey was also carried out to assess the composition and diversity of the avifauna. The forest cover was developed in a remarkable pattern, finding a linear relationship between its rate and channel sinuosity. An increase in forest areas did not enhance the rate of landscape diversity since only its distribution became more compact. Eroding riverbanks provided important nesting sites for colonies of protected and regionally declining migratory bird species such as the sand martin. We revealed that almost 70 years were enough to gain a new habitat system along the river as the linear channel formed to a meandering and more natural state. LA - English DB - MTMT ER - TY - JOUR AU - Restás, Ágoston TI - Water Related Disaster Management Supported by Drone Applications JF - WORLD JOURNAL OF ENGINEERING AND TECHNOLOGY J2 - WORLD J ENG TECH VL - 6 PY - 2018 IS - 2 SP - 116 EP - 126 PG - 11 SN - 2331-4222 DO - 10.4236/wjet.2018.62B010 UR - https://m2.mtmt.hu/api/publication/3391744 ID - 3391744 LA - English DB - MTMT ER - TY - CHAP AU - Nagy, Bálint ED - Tesla, Jan TI - A creek's hydrological model's generates in HEC-RAS T2 - Student V4 Geoscience Conference and Scientific Meeting GISÁČEK PB - Institute of Geoinformatics, Technical University of Ostrava CY - Ostrava SN - 9788024840338 PY - 2017 SP - 81 EP - 87 PG - 7 UR - https://m2.mtmt.hu/api/publication/30434827 ID - 30434827 LA - English DB - MTMT ER - TY - CHAP AU - Nagy, Bálint ED - Balázs, Boglárka TI - Az árvízi védekezés támogatása hidrológiai modellezéssel egy kisvízfolyás példáján T2 - Az elmélet és a gyakorlat találkozása a térinformatikában VIII. = Theory meets practice in GIS PB - Debreceni Egyetemi Kiadó CY - Debrecen SN - 9789633186381 PY - 2017 SP - 245 EP - 252 PG - 8 UR - https://m2.mtmt.hu/api/publication/30434796 ID - 30434796 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Kohán, Balázs AU - Deák, Márton AU - Mészáros, János AU - Nagy, Balázs AU - Szabó, Judit Alexandra AU - Szalai, Zoltán ED - Balázs, Boglárka TI - Ártéri domborzatfelmérés és elöntésszimuláció: gyorsan, hatékonyan és pontosan – a helyi árvízi védekezés érdekében T2 - Az elmélet és a gyakorlat találkozása a térinformatikában VII. = Theory meets practice in GIS PB - Debreceni Egyetemi Kiadó CY - Debrecen SN - 9789633185704 PY - 2016 SP - 229 EP - 235 PG - 7 UR - https://m2.mtmt.hu/api/publication/3073698 ID - 3073698 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Bertalan, László AU - Túri, Zoltán AU - Szabó, Gergely TI - UAS photogrammetry and object-based image analysis (GEOBIA): erosion monitoring at the Kazár badland, Hungary JF - ACTA GEOGRAPHICA DEBRECINA LANDSCAPE AND ENVIRONMENT SERIES J2 - ACTA GEOGR DEBRECINA LANDSCAPE VL - 10 PY - 2016 IS - 3-4 SP - 169 EP - 178 PG - 10 SN - 1789-4921 DO - 10.21120/LE/10/3-4/10 UR - https://m2.mtmt.hu/api/publication/3125037 ID - 3125037 AB - A remarkable badland valley is situated near Kazár, NE- Hungary, where rhyolite tuff outcrops as greyish white cliffs and white barren patches. The landform is shaped by gully and rill erosion processes. We performed a preliminary state UAS survey and created a digital surface model and ortophotograph. The flight was operated with manual control in order to perform a more optimal coverage of the aerial images. The overhanging forests induced overexposed photographs due to the higher contrast with the bare tuff surface. The multiresolution segmentation method allowed us to classify the ortophotograph and separate the tuff surface and the vegetation. The applied methods and final datasets in combination with the subsequent surveys will be used for detecting the recent erosional processes of the Kazár badland. LA - English DB - MTMT ER - TY - CHAP AU - Pásztor, László AU - Pálfai, I AU - Bozán, Csaba AU - Körösparti, János Tamás AU - Szabó, József AU - Bakacsi, Zsófia AU - Kuti, L ED - Suárez, Juan ED - Márkus, Béla TI - Spatial stochastic modelling of inland inundation hazard T2 - 9th AGILE International Conference on Geographic Information Science: "Shaping the Future of Geographic Information Science in Europe", AGILE 2006 PB - Nyugat-magyarországi Egyetem Geoinformatikai Kar CY - Székesfehérvár SN - 963229422X PY - 2006 SP - 139 EP - 143 PG - 5 UR - https://m2.mtmt.hu/api/publication/1224595 ID - 1224595 LA - English DB - MTMT ER -