Details zur Publikation
Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.jhydrol.2017.02.031
Titel (primär) How significant is the slope of the sea-side boundary for modelling seawater intrusion in coastal aquifers?
Autor Walther, M.; Graf, T.; Kolditz, O. ORCID logo ; Liedl, R.; Post, V.
Quelle Journal of Hydrology
Erscheinungsjahr 2017
Department ENVINF
Band/Volume 551
Seite von 648
Seite bis 659
Sprache englisch
Keywords Saltwater intrusion; Coastal aquifers; Numerical investigation; Sea-side boundary condition; Submarine groundwater discharge; Residence times; OpenGeoSys
UFZ Querschnittsthemen RU5;
Abstract Application of numerical models is a common method to assess groundwater resources. The versatility of these models allows consideration of different levels of complexity, but the accuracy of the outcomes hinges upon a proper description of the system behaviour. In seawater intrusion assessment, the implementation of the sea-side boundary condition is of particular importance. We evaluate the influence of the slope of the sea-side boundary on the simulation results of seawater intrusion in a freshwater aquifer by employing a series of slope variations together with a sensitivity analysis by varying additional sensitive parameters (freshwater inflow and longitudinal and transverse dispersivities). Model results reveal a multi-dimensional dependence of the investigated variables with an increasing relevance of the sea-side boundary slope for seawater intrusion (decrease of up to 32%), submarine groundwater discharge zone (reduction of up to 55%), and turnover times (increase of up to 730%) with increasing freshwater inflow or dispersivity values.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=18508
Walther, M., Graf, T., Kolditz, O., Liedl, R., Post, V. (2017):
How significant is the slope of the sea-side boundary for modelling seawater intrusion in coastal aquifers?
J. Hydrol. 551 , 648 - 659 10.1016/j.jhydrol.2017.02.031