Studying floodplain roughness in an Upper Tisza study area

A tétel rövid nézete
dc.contributor.authorVass, Róbert
dc.contributor.authorTúri, Zoltán
dc.date.issued2021-07-14
dc.description.abstractFloods slowing down due to the significant decrease of the gradient have considerable sediment accumulation capacity in the floodplain. The grade of accumulation is further increased if the width of the floodplain is not uniform as water flowing out of the narrow sections diverge and its speed is decreased. Surface roughness in a study area of 492 hectares in the Upper Tisza region was analysed based on CIR (color-infrared) orthophotos from 2007. An NDVI index layer was created first on which object-based image segmentation and threshold-based image classification were performed. The study area is dominated by land cover / land use types (grassland-shrubs, forest) with high roughness values. It was concluded that vegetation activity based analyses on their own are not enough for determining floodplain roughness.en
dc.formatapplication/pdf
dc.identifier.citationActa Geographica Debrecina Landscape & Environment series, Vol. 15 No. 1 (2021) , 85-90
dc.identifier.doihttps://doi.org/10.21120/LE/15/1/11
dc.identifier.eissn1789-7556
dc.identifier.issn1789-4921
dc.identifier.issue1
dc.identifier.jatitleLandsc. environ.
dc.identifier.jtitleActa Geographica Debrecina Landscape & Environment series
dc.identifier.urihttps://hdl.handle.net/2437/320655en
dc.identifier.volume15
dc.languageen
dc.relationhttps://ojs.lib.unideb.hu/landsenv/article/view/9784
dc.rights.accessOpen Access
dc.rights.ownerLandscape & Environment
dc.subjectroughnessen
dc.subjectfloodplainen
dc.subjectUpper Tisza regionen
dc.subjectNDVIen
dc.subjectorthophotoen
dc.subjectland use/land coveren
dc.subjectobject-based image segmentationen
dc.subjectimage classificationen
dc.titleStudying floodplain roughness in an Upper Tisza study areaen
dc.typefolyóiratcikkhu
dc.typearticleen
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Acta Geographica Debrecina Landscape & Environment (DE-journals)