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Toward a conceptual framework of hyporheic exchange across spatial scales

Title data

Magliozzi, Chiara ; Grabowski, Robert ; Packman, Aaron ; Krause, Stefan:
Toward a conceptual framework of hyporheic exchange across spatial scales.
In: Hydrology and Earth System Sciences. Vol. 22 (2018) Issue 12 . - pp. 6163-6185.
ISSN 1607-7938
DOI: https://doi.org/10.5194/hess-2018-268

Abstract in another language

Rivers are not isolated systems but interact continuously with groundwater from their confined headwaters to their wide lowland floodplains. In the last few decades, research on the hyporheic zone (HZ) has increased appreciation of the hydrological importance and ecological significance of connected river and groundwater systems. While recent studies have investigated hydrological, biogeochemical and ecohydrological processes in the HZ at bedform and reach scales, a comprehensive understanding of process-based interactions between factors operating at different spatial and temporal scales driving hyporheic exchange flows (HEF) at large and reach scale is still missing. Therefore, this review summarizes the factors and processes at catchment, valley and reach scales that interact and control spatial and temporal variations in hyporheic exchange flows. By using a multi-scale perspective, this review connects field observations and modelling studies to identify process driving patterns and dynamics of HEF. Finally, the influence of process interactions over multiple spatial scales is illustrated in a case study, supported by new GIS analyses, which highlights the importance of valley scale factors to the expression of HEF at the reach scale. This conceptual framework will aid the development of approaches to interpret hyporheic exchange across scales, infer scaling relationships, and inform catchment management decisions.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER148796
Institutions of the University: Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Result of work at the UBT: No
DDC Subjects: 500 Science
Date Deposited: 02 May 2019 10:11
Last Modified: 02 May 2019 10:11
URI: https://eref.uni-bayreuth.de/id/eprint/48211