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| Created: | Feb 08, 2023 at 5:18 a.m. | |
| Last updated: | Feb 08, 2023 at 5:19 a.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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Abstract
The hydrology of coastal catchments is influenced by both sea level and climate. Hence, a comprehensive assessment of the impact of climate change on coastal catchments is a challenging task. In the present study, a coupled groundwater-surface water model is forced by dynamically downscaled results from a general circulation model. The effects on water quantity and quality of a relatively large lake used for water supply are analyzed. Although stream inflow to the lake is predicted to decrease during summer, the storage capacity of the lake is found to provide a sufficient buffer to support sustainable water abstraction in the future. On the other hand, seawater intrusion into the stream is found to be a significant threat to the water quality of the lake, possibly limiting its use for water supply and impacting the aquatic environment. Additionally, the results indicate that the nutrient load to the lake and adjacent coastal waters is likely to increase significantly, which will increase eutrophication and have negative effects on the surface water ecology. The hydrological impact assessment is based on only one climate change projection; nevertheless, the range of changes generated by other climate models indicates that the predicted results are a plausible realization of climate change impacts. The problems identified here are expected to be relevant for many coastal regimes, where the hydrology is determined by the interaction between saline and fresh groundwater and surface water systems.
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Additional Metadata
| Name | Value |
|---|---|
| DOI | 10.1007/s10584-011-0367-3 |
| Depth | 45 |
| Scale | 101 - 1 000 km² |
| Layers | 10 |
| Purpose | Groundwater resources |
| GroMoPo_ID | 236 |
| IsVerified | True |
| Model Code | MIKE SHE |
| Model Link | https://doi.org/10.1007/s10584-011-0367-3 |
| Model Time | 1991 - 2008 |
| Model Year | 2012 |
| Model Authors | Sonnenborg, TO; Hinsby, K; van Roosmalen, L; Stisen, S |
| Model Country | Denmark |
| Data Available | Report/paper only |
| Developer Email | tso@geus.dk |
| Dominant Geology | Unconsolidated sediments |
| Developer Country | Denmark; Australia |
| Publication Title | Assessment of climate change impacts on the quantity and quality of a coastal catchment using a coupled groundwater-surface water model |
| Original Developer | No |
| Additional Information | In the present study, a coupled groundwater–surface water model is forced by dynamically downscaled results from a general circulation model. The effects on water quantity and quality of a relatively large lake used for water supply are analyzed |
| Integration or Coupling | Water management |
| Evaluation or Calibration | Dynamic water levels |
| Geologic Data Availability | Yes |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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