Flow patterns and morphological changes in a sandy meander bend during a flood-spatially and temporally intensive ADCP measurement approach

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Kasvi, Elina
dc.contributor.author Laamanen, Leena
dc.contributor.author Lotsari, Eliisa
dc.contributor.author Alho, Petteri
dc.date.accessioned 2017-03-23T11:16:56Z
dc.date.available 2017-03-23T11:16:56Z
dc.date.issued 2017
dc.identifier.citation Kasvi , E , Laamanen , L , Lotsari , E & Alho , P 2017 , ' Flow patterns and morphological changes in a sandy meander bend during a flood-spatially and temporally intensive ADCP measurement approach ' WATER , vol 9 , no. 2 , 106 . DOI: 10.3390/w9020106 en
dc.identifier.issn 2073-4441
dc.identifier.other PURE UUID: 7e44b929-bc12-4c34-aeba-c8787e4e8201
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/flow-patterns-and-morphological-changes-in-a-sandy-meander-bend-during-a-floodspatially-and-temporally-intensive-adcp-measurement-approach(7e44b929-bc12-4c34-aeba-c8787e4e8201).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85013836514&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/11247264/water_09_00106_alho_laamanen_kasvi_lotsari.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/24906
dc.description.abstract The fluvio-geomorphological processes in meander bends are spatially uneven in distribution. Typically, higher velocities and erosion take place near the outer bank beyond the bend apex, while the inner bend point bar grows laterally towards the outer bank, increasing the bend amplitude. These dynamics maintain the meander evolution. Even though this development is found in meandering rivers independent of soil or environmental characteristics, each river still seems to behave unpredictably. The special mechanisms that determine the rate and occasion of morphological changes remain unclear. The aim of this study is to offer new insights regarding flow-induced morphological changes in meander using a novel study approach. We focused on short-term and small-spatial-scale changes by conducting a spatially and temporally (daily) intensive survey during a flood (a period of nine days) with an ADCP attached to a remotely controlled mini-boat. Based on our analysis, the flood duration and the rate of discharge increase and decrease seems to play key roles in determining channel changes by controlling the flow velocities and depth and the backwater effect may have notable influence on the morphological processes. We discuss themes such as the interaction of inner and outer bend processes and the longer-term development of meander bends. en
dc.format.extent 20
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries WATER en
dc.relation.ispartofseries Volume 9, issue 2 en
dc.rights openAccess en
dc.subject.other Geography, Planning and Development en
dc.subject.other Biochemistry en
dc.subject.other Aquatic Science en
dc.subject.other Water Science and Technology en
dc.subject.other 1171 Geosciences en
dc.title Flow patterns and morphological changes in a sandy meander bend during a flood-spatially and temporally intensive ADCP measurement approach en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Real Estate, Planning and Geoinformatics
dc.contributor.department University of Eastern Finland
dc.contributor.department Department of Built Environment
dc.subject.keyword ADCP
dc.subject.keyword Flow measurement
dc.subject.keyword Fluvial geomorphology
dc.subject.keyword Fluvial processes
dc.subject.keyword Meandering river
dc.subject.keyword River
dc.subject.keyword Geography, Planning and Development
dc.subject.keyword Biochemistry
dc.subject.keyword Aquatic Science
dc.subject.keyword Water Science and Technology
dc.subject.keyword 1171 Geosciences
dc.identifier.urn URN:NBN:fi:aalto-201703233149
dc.identifier.doi 10.3390/w9020106
dc.type.version publishedVersion


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