<div class="csl-bib-body">
<div class="csl-entry">Marjanovic, D., Parajka, J., Szeles, B., Ressl, C., Strauss, P., & Blöschl, G. (2024, September 17). <i>The connectivity of saturation area on an agricultural hillslope at the Hydrological Open Air Laboratory, Austria.</i> [Conference Presentation]. 19th Biennal Conference ERB 2024 Hydrological investigations in human and climate change-impacted small catchments, Inca, Malllorca, Spain.</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/205272
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dc.description.abstract
Surface runoff from agricultural hillslopes is one of the most important factors
controlling soil erosion, land degradation and stream water contamination.
The mechanisms of surface runoff generation are complex, depending on the
meteorological, soil, vegetation and land use characteristics. Understanding
the connectivity of flow paths and the different properties present in them is
necessary for a more complete understanding of system behaviour.
This contribution aims to present the estimation and evaluation of the
connectivity of saturated area on an agricultural hillslope using time-lapse
photography. The study is conducted on a 26.8 ha hillslope at the Hydrological
Open Air Laboratory (HOAL) experimental catchment in Austria. The connectivity
of saturated area is characterized by the structural connectivity scale index
proposed in Western et al., (2001) (https://doi.org/10.1029/2000WR900241)
using digital camera observations from the period 2014-2020. The temporal
dynamics of the connectivity are estimated from the time-lapse photography
of 15 significant surface runoff events, using approximately 830 images per
day of the event, combined with the runoff observations in the stream as well
as hydrological variables such as precipitation, soil moisture, and groundwater
levels.
Using the structural connectivity scale index, the results allow the identification
of two groups of connectivity types in the HOAL. The different connectivity types
exhibit hydrologically distinct behaviour, from which the conclusion follows
that the connectivity function is hydrologically significant. The classification
of the events per group is based on the value of the estimated connectivity
scale. Events with an estimated maximum connectivity scale below 10 m are
considered “disconnected” since the runoff pattern passing through the area
stays patchy or disconnected; conversely events with an estimated connectivity
scale above 10 m are considered “connected” since the runoff pattern passing through the observed area remains connected. The results show that the
maximum saturated area during an event varies between 10 and 230 m2. The
formation of the two discussed types of connectivity is mainly controlled by
initial soil moisture and rainfall characteristics
en
dc.language.iso
en
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dc.subject
connectivity
en
dc.subject
surface runoff
en
dc.subject
HOAL
en
dc.subject
time-lapse photography
en
dc.title
The connectivity of saturation area on an agricultural hillslope at the Hydrological Open Air Laboratory, Austria.
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.type.category
Conference Presentation
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tuw.researchTopic.id
M1
-
tuw.researchTopic.id
E4
-
tuw.researchTopic.id
C6
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tuw.researchTopic.name
Surfaces and Interfaces
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tuw.researchTopic.name
Environmental Monitoring and Climate Adaptation
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tuw.researchTopic.name
Modeling and Simulation
-
tuw.researchTopic.value
20
-
tuw.researchTopic.value
30
-
tuw.researchTopic.value
50
-
tuw.publication.orgunit
E222-02 - Forschungsbereich Ingenieurhydrologie
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tuw.author.orcid
0009-0006-3427-0254
-
tuw.author.orcid
0000-0002-3716-8961
-
tuw.author.orcid
0000-0002-8693-9304
-
tuw.event.name
19th Biennal Conference ERB 2024 Hydrological investigations in human and climate change-impacted small catchments
en
tuw.event.startdate
17-09-2024
-
tuw.event.enddate
20-09-2024
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Inca, Malllorca
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tuw.event.country
ES
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tuw.event.presenter
Marjanovic, Dusan
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tuw.event.presenter
Parajka, Juraj
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tuw.event.presenter
Szeles, Borbala
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tuw.event.presenter
Ressl, Camillo
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tuw.event.presenter
Strauss, Peter
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tuw.event.presenter
Blöschl, Günter
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wb.sciencebranch
Umwelttechnik
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wb.sciencebranch
Andere Agrarwissenschaften
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wb.sciencebranch
Hydrologie
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wb.sciencebranch.oefos
2071
-
wb.sciencebranch.oefos
4050
-
wb.sciencebranch.oefos
1053
-
wb.sciencebranch.value
40
-
wb.sciencebranch.value
10
-
wb.sciencebranch.value
50
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item.languageiso639-1
en
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item.openairetype
conference paper not in proceedings
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item.grantfulltext
none
-
item.fulltext
no Fulltext
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
-
crisitem.author.dept
E222-02 - Forschungsbereich Ingenieurhydrologie
-
crisitem.author.dept
E222-02 - Forschungsbereich Ingenieurhydrologie
-
crisitem.author.dept
E222-02 - Forschungsbereich Ingenieurhydrologie
-
crisitem.author.dept
E120-07 - Forschungsbereich Photogrammetrie
-
crisitem.author.dept
E226 - Institut für Wassergüte und Ressourcenmanagement
-
crisitem.author.dept
E222 - Institut für Wasserbau und Ingenieurhydrologie
-
crisitem.author.orcid
0009-0006-3427-0254
-
crisitem.author.orcid
0000-0002-3716-8961
-
crisitem.author.orcid
0000-0002-8693-9304
-
crisitem.author.orcid
0000-0003-2227-8225
-
crisitem.author.parentorg
E222 - Institut für Wasserbau und Ingenieurhydrologie
-
crisitem.author.parentorg
E222 - Institut für Wasserbau und Ingenieurhydrologie
-
crisitem.author.parentorg
E222 - Institut für Wasserbau und Ingenieurhydrologie
