Modeling Dynamic Processes of Mondego Estuary and Óbidos Lagoon Using Delft3D
Estuarine systems currently face increasing pressure due to population growth, rapid economic development, and the effect of climate change, which threatens the deterioration of their water quality. This study uses an open-source model of high transferability (Delft3D), to investigate the physics an...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-01-01
|
| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/9/1/91 |
| _version_ | 1797411010014871552 |
|---|---|
| author | Joana Mendes Rui Ruela Ana Picado João Pedro Pinheiro Américo Soares Ribeiro Humberto Pereira João Miguel Dias |
| author_facet | Joana Mendes Rui Ruela Ana Picado João Pedro Pinheiro Américo Soares Ribeiro Humberto Pereira João Miguel Dias |
| author_sort | Joana Mendes |
| collection | DOAJ |
| description | Estuarine systems currently face increasing pressure due to population growth, rapid economic development, and the effect of climate change, which threatens the deterioration of their water quality. This study uses an open-source model of high transferability (Delft3D), to investigate the physics and water quality dynamics, spatial variability, and interrelation of two estuarine systems of the Portuguese west coast: Mondego Estuary and Óbidos Lagoon. In this context, the Delft3D was successfully implemented and validated for both systems through model-observation comparisons and further explored using realistically forced and process-oriented experiments. Model results show (1) high accuracy to predict the local hydrodynamics and fair accuracy to predict the transport and water quality of both systems; (2) the importance of the local geomorphology and estuary dimensions in the tidal propagation and asymmetry; (3) Mondego Estuary (except for the south arm) has a higher water volume exchange with the adjacent ocean when compared to Óbidos Lagoon, resulting from the highest fluvial discharge that contributes to a better water renewal; (4) the dissolved oxygen (DO) varies with water temperature and salinity differently for both systems. On the one hand, for Mondego Estuary during winter the DO levels mainly fluctuate with salinity. On the other hand, for Óbidos Lagoon, DO distribution is determined by both water temperature and salinity. During summer, the high residence time and water temperature limit the DO levels in both systems. The high transferability and superior stability of Delft3D make this model a foundation for realistic simulation and research of distinct estuarine systems, giving support to their maintenance and restoration. |
| first_indexed | 2024-03-09T04:38:48Z |
| format | Article |
| id | doaj.art-283b1b33256c4f2d9c4805562d7eb6f7 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T04:38:48Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-283b1b33256c4f2d9c4805562d7eb6f72023-12-03T13:23:57ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-01-01919110.3390/jmse9010091Modeling Dynamic Processes of Mondego Estuary and Óbidos Lagoon Using Delft3DJoana Mendes0Rui Ruela1Ana Picado2João Pedro Pinheiro3Américo Soares Ribeiro4Humberto Pereira5João Miguel Dias6Physics Department, CESAM–Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, PortugalPhysics Department, CESAM–Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, PortugalPhysics Department, CESAM–Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, PortugalPhysics Department, CESAM–Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, PortugalPhysics Department, CESAM–Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, PortugalPhysics Department, CESAM–Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, PortugalPhysics Department, CESAM–Centre for Environmental and Marine Studies, University of Aveiro, 3810-193 Aveiro, PortugalEstuarine systems currently face increasing pressure due to population growth, rapid economic development, and the effect of climate change, which threatens the deterioration of their water quality. This study uses an open-source model of high transferability (Delft3D), to investigate the physics and water quality dynamics, spatial variability, and interrelation of two estuarine systems of the Portuguese west coast: Mondego Estuary and Óbidos Lagoon. In this context, the Delft3D was successfully implemented and validated for both systems through model-observation comparisons and further explored using realistically forced and process-oriented experiments. Model results show (1) high accuracy to predict the local hydrodynamics and fair accuracy to predict the transport and water quality of both systems; (2) the importance of the local geomorphology and estuary dimensions in the tidal propagation and asymmetry; (3) Mondego Estuary (except for the south arm) has a higher water volume exchange with the adjacent ocean when compared to Óbidos Lagoon, resulting from the highest fluvial discharge that contributes to a better water renewal; (4) the dissolved oxygen (DO) varies with water temperature and salinity differently for both systems. On the one hand, for Mondego Estuary during winter the DO levels mainly fluctuate with salinity. On the other hand, for Óbidos Lagoon, DO distribution is determined by both water temperature and salinity. During summer, the high residence time and water temperature limit the DO levels in both systems. The high transferability and superior stability of Delft3D make this model a foundation for realistic simulation and research of distinct estuarine systems, giving support to their maintenance and restoration.https://www.mdpi.com/2077-1312/9/1/91Delft3Dhydrodynamic/water quality modelstidesalinitywater temperaturedissolved oxygen |
| spellingShingle | Joana Mendes Rui Ruela Ana Picado João Pedro Pinheiro Américo Soares Ribeiro Humberto Pereira João Miguel Dias Modeling Dynamic Processes of Mondego Estuary and Óbidos Lagoon Using Delft3D Journal of Marine Science and Engineering Delft3D hydrodynamic/water quality models tide salinity water temperature dissolved oxygen |
| title | Modeling Dynamic Processes of Mondego Estuary and Óbidos Lagoon Using Delft3D |
| title_full | Modeling Dynamic Processes of Mondego Estuary and Óbidos Lagoon Using Delft3D |
| title_fullStr | Modeling Dynamic Processes of Mondego Estuary and Óbidos Lagoon Using Delft3D |
| title_full_unstemmed | Modeling Dynamic Processes of Mondego Estuary and Óbidos Lagoon Using Delft3D |
| title_short | Modeling Dynamic Processes of Mondego Estuary and Óbidos Lagoon Using Delft3D |
| title_sort | modeling dynamic processes of mondego estuary and obidos lagoon using delft3d |
| topic | Delft3D hydrodynamic/water quality models tide salinity water temperature dissolved oxygen |
| url | https://www.mdpi.com/2077-1312/9/1/91 |
| work_keys_str_mv | AT joanamendes modelingdynamicprocessesofmondegoestuaryandobidoslagoonusingdelft3d AT ruiruela modelingdynamicprocessesofmondegoestuaryandobidoslagoonusingdelft3d AT anapicado modelingdynamicprocessesofmondegoestuaryandobidoslagoonusingdelft3d AT joaopedropinheiro modelingdynamicprocessesofmondegoestuaryandobidoslagoonusingdelft3d AT americosoaresribeiro modelingdynamicprocessesofmondegoestuaryandobidoslagoonusingdelft3d AT humbertopereira modelingdynamicprocessesofmondegoestuaryandobidoslagoonusingdelft3d AT joaomigueldias modelingdynamicprocessesofmondegoestuaryandobidoslagoonusingdelft3d |