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  • Munz, Matthias  (2)
  • Rudolph-Mohr, Nicole  (2)
  • Universidade Federal da Paraíba  (2)
  • Oswald, Sascha E.
  • 1
    Online-Ressource
    Online-Ressource
    Water flow and heat transport modelling at the interface between river and aquifer (2018)
    Potsdam
    Details
    UID:
    gbv_1014323061
    Umfang: 1 Online-Ressource (XIII, 123 Seiten, 7980 KB) , Illustrationen, Diagramme
    Inhalt: The functioning of the surface water-groundwater interface as buffer, filter and reactive zone is important for water quality, ecological health and resilience of streams and riparian ecosystems. Solute and heat exchange across this interface is driven by the advection of water. Characterizing the flow conditions in the streambed is challenging as flow patterns are often complex and multidimensional, driven by surface hydraulic gradients and groundwater discharge. This thesis presents the results of an integrated approach of studies, ranging from the acquisition of field data, the development of analytical and numerical approaches to analyse vertical temperature profiles to the detailed, fully-integrated 3D numerical modelling of water and heat flux at the reach scale. All techniques were applied in order to characterize exchange flux between stream and groundwater, hyporheic flow paths and temperature patterns. The study was conducted at a reach-scale section of the lowland Selke River, characterized by distinctive pool riffle…
    Anmerkung: kumulative Dissertation , Dissertation Universität Potsdam 2017
    Weitere Ausg.: Erscheint auch als Druck-Ausgabe Munz, Matthias Water flow and heat transport modelling at the interface between river and aquifer Potsdam, 2017
    Sprache: Englisch
    Schlagwort(e): Oberflächenwasser ; Grundwasser ; Hochschulschrift
    URN: urn:nbn:de:kobv:517-opus4-404319
    URL: Volltext
    URL: https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-404319
    URL: https://d-nb.info/1218601957/34
    URL: kostenfrei
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Online-Ressource
    Online Zugang
    UB Potsdam
  • 2
    Buch
    Buch
    Water flow and heat transport modelling at the interface between river and aquifer (2017)
    Potsdam
    Details
    UID:
    gbv_1014324343
    Umfang: XIII, 123 Seiten , Illustrationen, Diagramme
    Inhalt: The functioning of the surface water-groundwater interface as buffer, filter and reactive zone is important for water quality, ecological health and resilience of streams and riparian ecosystems. Solute and heat exchange across this interface is driven by the advection of water. Characterizing the flow conditions in the streambed is challenging as flow patterns are often complex and multidimensional, driven by surface hydraulic gradients and groundwater discharge. This thesis presents the results of an integrated approach of studies, ranging from the acquisition of field data, the development of analytical and numerical approaches to analyse vertical temperature profiles to the detailed, fully-integrated 3D numerical modelling of water and heat flux at the reach scale. All techniques were applied in order to characterize exchange flux between stream and groundwater, hyporheic flow paths and temperature patterns. The study was conducted at a reach-scale section of the lowland Selke River, characterized by distinctive pool riffle…
    Anmerkung: Enthält 3 Publikationen , kumulative Dissertation , Dissertation Universität Potsdam 2017
    Weitere Ausg.: Erscheint auch als Online-Ausgabe Munz, Matthias Water flow and heat transport modelling at the interface between river and aquifer Potsdam, 2018
    Sprache: Englisch
    Schlagwort(e): Oberflächenwasser ; Grundwasser ; Hochschulschrift
    URL: Inhaltsverzeichnis
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Buch
    UB Potsdam get availability status
  • 3
    Online-Ressource
    Online-Ressource
    Groundwater recharge in tropical wet regions via GIS-based methods and cosmic-ray neutron sensing (2020)
    Potsdam
    Details
    UID:
    gbv_1733683704
    Umfang: 1 Online-Ressource (XXVI, 175 Blätter, 28901 KB) , Illustrationen, Diagramme, Karten
    Inhalt: Studies on the unsustainable use of groundwater resources are still considered incipient since it is frequently a poorly understood and managed, devalued and inadequately protected natural resource. Groundwater Recharge (GWR) is one of the most challenging elements to estimate since it can rarely be measured directly and cannot easily be derived from existing data. To overcome these limitations, many hydro(geo)logists have combined different approaches to estimate large-scale GWR, namely: remote sensing products, such as IMERG product; Water Budget Equation, also in combination with hydrological models, and; Geographic Information System (GIS), using estimation formulas. For intermediary-scale GWR estimation, there exist: Non-invasive Cosmic-Ray Neutron Sensing (CRNS); wireless networks from local soil probes; and soil hydrological models, such as HYDRUS. Accordingly, this PhD thesis aims, on the one hand, to demonstrate a GIS-based model coupling for estimating the GWR distribution on a large scale in tropical wet basins. On the ...
    Anmerkung: Volltext: PDF , Dissertation Universität Potsdam 2020
    Weitere Ausg.: Erscheint auch als Druck-Ausgabe Romero Barbosa, Luís Groundwater recharge in tropical wet regions via GIS-based methods and cosmic-ray neutron sensing Potsdam, 2020
    Sprache: Englisch
    Schlagwort(e): Paraíba ; Fernerkundung ; Grundwasserbildung ; Bodenwasserhaushalt ; Kosmische Strahlung ; Neutronenstrahlung ; Brasilien ; Tropen ; Grundwasserhaushalt ; Hochschulschrift
    DOI: 10.25932/publishup-46064
    URN: urn:nbn:de:kobv:517-opus4-460641
    URL: kostenfrei
    URL: kostenfrei
    URL: https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-460641
    URL: https://d-nb.info/1219578894/34
    URL: kostenfrei
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Online-Ressource
    Open Access Wunsch
    UB Potsdam
  • 4
    Buch
    Buch
    Groundwater recharge in tropical wet regions via GIS-based methods and cosmic-ray neutron sensing (2020)
    Potsdam
    Details
    UID:
    gbv_1733686606
    Umfang: XXVI, 175 Blätter , Illustrationen, Diagramme, Karten
    Inhalt: Studies on the unsustainable use of groundwater resources are still considered incipient since it is frequently a poorly understood and managed, devalued and inadequately protected natural resource. Groundwater Recharge (GWR) is one of the most challenging elements to estimate since it can rarely be measured directly and cannot easily be derived from existing data. To overcome these limitations, many hydro(geo)logists have combined different approaches to estimate large-scale GWR, namely: remote sensing products, such as IMERG product; Water Budget Equation, also in combination with hydrological models, and; Geographic Information System (GIS), using estimation formulas. For intermediary-scale GWR estimation, there exist: Non-invasive Cosmic-Ray Neutron Sensing (CRNS); wireless networks from local soil probes; and soil hydrological models, such as HYDRUS. Accordingly, this PhD thesis aims, on the one hand, to demonstrate a GIS-based model coupling for estimating the GWR distribution on a large scale in tropical wet basins. On the ...
    Anmerkung: Dissertation Universität Potsdam 2020 , Dissertation Federal University of Paraíba (UFPB, Brazil) 2020
    Weitere Ausg.: Erscheint auch als Online-Ausgabe Romero Barbosa, Luís Groundwater recharge in tropical wet regions via GIS-based methods and cosmic-ray neutron sensing Potsdam, 2020
    Sprache: Englisch
    Schlagwort(e): Paraíba ; Fernerkundung ; Grundwasserbildung ; Bodenwasserhaushalt ; Kosmische Strahlung ; Neutronenstrahlung ; Brasilien ; Tropen ; Grundwasserhaushalt ; Hochschulschrift
    URL: Inhaltsverzeichnis
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Buch
    UB Potsdam get availability status
  • 5
    Online-Ressource
    Online-Ressource
    A novel non-invasive optical method for quantitative visualization of pH and oxygen dynamics in soils (2013)
    Details
    UID:
    gbv_769315410
    Umfang: Online-Ressource (PDF-Datei: V, 114 S., 4918 KB)
    Inhalt: In soils and sediments there is a strong coupling between local biogeochemical processes and the distribution of water, electron acceptors, acids and nutrients. Both sides are closely related and affect each other from small scale to larger scales. Soil structures such as aggregates, roots, layers or macropores enhance the patchiness of these distributions. At the same time it is difficult to access the spatial distribution and temporal dynamics of these parameter. Noninvasive imaging techniques with high spatial and temporal resolution overcome these limitations. And new non-invasive techniques are needed to study the dynamic interaction of plant roots with the surrounding soil, but also the complex physical and chemical processes in structured soils. In this study we developed an efficient non-destructive in-situ method to determine biogeochemical parameters relevant to plant roots growing in soil. This is a quantitative fluorescence imaging method suitable for visualizing the spatial and temporal pH changes around roots. We adapted the fluorescence imaging set-up and coupled it with neutron radiography to study simultaneously root growth, oxygen depletion by respiration activity and root water uptake. The combined set up was subsequently applied to a structured soil system to map the patchy structure of oxic and anoxic zones induced by a chemical oxygen consumption reaction for spatially varying water contents. Moreover, results from a similar fluorescence imaging technique for nitrate detection were complemented by a numerical modeling study where we used imaging data, aiming to simulate biodegradation under anaerobic, nitrate reducing conditions.
    Anmerkung: Potsdam, Universität Potsdam, Diss., 2013
    Weitere Ausg.: Erscheint auch als Druck-Ausgabe Rudolph-Mohr, Nicole, 1980 - A novel non-invasive optical method for quantitative visualization of pH and oxygen dynamics in soils 2013
    Sprache: Englisch
    Schlagwort(e): Hochschulschrift
    URN: urn:nbn:de:kobv:517-opus-66993
    URL: Volltext
    URL: Volltext
    URL: Volltext  (kostenfrei)
    Mehr zum Autor: Rudolph-Mohr, Nicole 1980-
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Online-Ressource
    Volltext
    UB Potsdam
  • 6
    Buch
    Buch
    A novel non-invasive optical method for quantitative visualization of pH and oxygen dynamics in soils (2013)
    Details
    UID:
    gbv_770761119
    Umfang: V, 114 S. , graph. Darst.
    Inhalt: In soils and sediments there is a strong coupling between local biogeochemical processes and the distribution of water, electron acceptors, acids and nutrients. Both sides are closely related and affect each other from small scale to larger scales. Soil structures such as aggregates, roots, layers or macropores enhance the patchiness of these distributions. At the same time it is difficult to access the spatial distribution and temporal dynamics of these parameter. Noninvasive imaging techniques with high spatial and temporal resolution overcome these limitations. And new non-invasive techniques are needed to study the dynamic interaction of plant roots with the surrounding soil, but also the complex physical and chemical processes in structured soils. In this study we developed an efficient non-destructive in-situ method to determine biogeochemical parameters relevant to plant roots growing in soil. This is a quantitative fluorescence imaging method suitable for visualizing the spatial and temporal pH changes around roots. We adapted the fluorescence imaging set-up and coupled it with neutron radiography to study simultaneously root growth, oxygen depletion by respiration activity and root water uptake. The combined set up was subsequently applied to a structured soil system to map the patchy structure of oxic and anoxic zones induced by a chemical oxygen consumption reaction for spatially varying water contents. Moreover, results from a similar fluorescence imaging technique for nitrate detection were complemented by a numerical modeling study where we used imaging data, aiming to simulate biodegradation under anaerobic, nitrate reducing conditions.
    Anmerkung: Potsdam, Univ., Diss., 2013
    Weitere Ausg.: Erscheint auch als Online-Ausgabe Rudolph-Mohr, Nicole, 1980 - A novel non-invasive optical method for quantitative visualization of pH and oxygen dynamics in soils 2013
    Sprache: Englisch
    Schlagwort(e): Hochschulschrift
    Mehr zum Autor: Rudolph-Mohr, Nicole 1980-
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Buch
    UB Potsdam get availability status
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