Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/j.jhydrol.2017.02.031 |
| Title (Primary) | How significant is the slope of the sea-side boundary for modelling seawater intrusion in coastal aquifers? |
| Author | Walther, M.; Graf, T.; Kolditz, O.
; Liedl, R.; Post, V. |
| Source Titel | Journal of Hydrology |
| Year | 2017 |
| Department | ENVINF |
| Volume | 551 |
| Page From | 648 |
| Page To | 659 |
| Language | englisch |
| Keywords | Saltwater intrusion; Coastal aquifers; Numerical investigation; Sea-side boundary condition; Submarine groundwater discharge; Residence times; OpenGeoSys |
| UFZ wide themes | 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. |
| Persistent UFZ Identifier | 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 |
|