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2019-12-22Zeitschriftenartikel DOI: 10.3390/w12010062
Impact of Bed Form Celerity on Oxygen Dynamics in the Hyporheic Zone
dc.contributor.authorWolke, Philipp
dc.contributor.authorTeitelbaum, Yoni
dc.contributor.authorDeng, Chao
dc.contributor.authorLewandowski, Jörg
dc.contributor.authorArnon, Shai
dc.date.accessioned2020-09-09T11:54:33Z
dc.date.available2020-09-09T11:54:33Z
dc.date.issued2019-12-22none
dc.date.updated2020-01-07T22:11:49Z
dc.identifier.urihttp://edoc.hu-berlin.de/18452/22606
dc.description.abstractOxygen distribution and uptake in the hyporheic zone regulate various redox-sensitive reactions and influence habitat conditions. Despite the fact that fine-grain sediments in streams and rivers are commonly in motion, most studies on biogeochemistry have focused on stagnant sediments. In order to evaluate the effect of bed form celerity on oxygen dynamics and uptake in sandy beds, we conducted experiments in a recirculating indoor flume. Oxygen distribution in the bed was measured under various celerities using 2D planar optodes. Bed morphodynamics were measured by a surface elevation sensor and time-lapse photography. Oxygenated zones in stationary beds had a conchoidal shape due to influx through the stoss side of the bed form, and upwelling anoxic water at the lee side. Increasing bed celerity resulted in the gradual disappearance of the upwelling anoxic zone and flattening of the interface between the oxic (moving fraction of the bed) and the anoxic zone (stationary fraction of the bed), as well as in a reduction of the volumetric oxygen uptake rates due shortened residence times in the hyporheic zone. These results suggest that including processes related to bed form migration are important for understanding the biogeochemistry of hyporheic zones.eng
dc.description.sponsorshipIsrael Science Foundation
dc.language.isoengnone
dc.publisherHumboldt-Universität zu Berlin
dc.rights(CC BY 4.0) Attribution 4.0 Internationalger
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjecthyporheic exchangeeng
dc.subjectbed form migrationeng
dc.subjectmoving streambedeng
dc.subjectrippleseng
dc.subjectplanar optodeseng
dc.subject.ddc690 Bau von Gebäudennone
dc.titleImpact of Bed Form Celerity on Oxygen Dynamics in the Hyporheic Zonenone
dc.typearticle
dc.identifier.urnurn:nbn:de:kobv:11-110-18452/22606-0
dc.identifier.doi10.3390/w12010062none
dc.identifier.doihttp://dx.doi.org/10.18452/21882
dc.type.versionpublishedVersionnone
local.edoc.container-titleWaternone
local.edoc.pages17none
local.edoc.type-nameZeitschriftenartikel
local.edoc.institutionMathematisch-Naturwissenschaftliche Fakultätnone
local.edoc.container-typeperiodical
local.edoc.container-type-nameZeitschrift
local.edoc.container-publisher-nameMDPInone
local.edoc.container-publisher-placeBaselnone
local.edoc.container-volume12none
local.edoc.container-issue1none
dc.description.versionPeer Reviewednone
local.edoc.container-articlenumber62none
dc.identifier.eissn2073-4441
local.edoc.affiliationWolke, Philipp; Department Ecohydrology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany, philipp.wolke@web.de Institute of Geological Sciences, Department of Earth Sciences, Freie Universität Berlin, Malteserstr. 74-100, 12249 Berlin, Germany, philipp.wolke@web.denone
local.edoc.affiliationTeitelbaum, Yoni; Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990 Midreshet Ben-Gurion, Israel, ytbaum@gmail.comnone
local.edoc.affiliationDeng, Chao; Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990 Midreshet Ben-Gurion, Israel, marschao@163.comnone
local.edoc.affiliationLewandowski, Jörg; Department Ecohydrology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany, lewe@igb-berlin.de Geography Department, Humboldt University Berlin, Rudower Chaussee 16, 12489 Berlin, Germany, lewe@igb-berlin.denone
local.edoc.affiliationArnon, Shai; Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990 Midreshet Ben-Gurion, Israel, sarnon@bgu.ac.ilnone

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