Quantification of Groundwater Vertical Flow from Temperature Profiles: Application to Agua Amarga Coastal Aquifer (SE Spain) Submitted to Artificial Recharge

The Agua Amarga coastal aquifer has experienced different anthropic interventions over the last 100 years. Since 2008, groundwater abstractions along the coastline to supply the Alicante I and II desalination plants have been combined with artificial recharge. This measure, consisting of seawater ir...

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Main Authors: José Antonio Jiménez-Valera, Iván Alhama, Emilio Trigueros
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/15/6/1093
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author José Antonio Jiménez-Valera
Iván Alhama
Emilio Trigueros
author_facet José Antonio Jiménez-Valera
Iván Alhama
Emilio Trigueros
author_sort José Antonio Jiménez-Valera
collection DOAJ
description The Agua Amarga coastal aquifer has experienced different anthropic interventions over the last 100 years. Since 2008, groundwater abstractions along the coastline to supply the Alicante I and II desalination plants have been combined with artificial recharge. This measure, consisting of seawater irrigation over the salt marsh, has reduced the impact on the piezometry and surface ecosystems. The study of the effect of this measure on groundwater flow is addressed by applying an inverse problem protocol to temperature profiles monitored in a piezometer located inside the recharge area. Information on monthly seawater irrigation volumes, rainfall, and average air and seawater temperatures have also been gathered as input data to quantify vertical flow. An upward flow component for the period 2010–2022 that varies between 2 × 10<sup>−9</sup> and 7.5 × 10<sup>−7</sup> m/s has been found. These values decrease near the surface, where the flow is mainly horizontal.
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spelling doaj.art-1ec0bdfabc4e41e1b86fbaa08e63610f2023-11-17T14:26:20ZengMDPI AGWater2073-44412023-03-01156109310.3390/w15061093Quantification of Groundwater Vertical Flow from Temperature Profiles: Application to Agua Amarga Coastal Aquifer (SE Spain) Submitted to Artificial RechargeJosé Antonio Jiménez-Valera0Iván Alhama1Emilio Trigueros2Mining and Civil Engineering Department, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 52, 30203 Cartagena, SpainMining and Civil Engineering Department, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 52, 30203 Cartagena, SpainMining and Civil Engineering Department, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 52, 30203 Cartagena, SpainThe Agua Amarga coastal aquifer has experienced different anthropic interventions over the last 100 years. Since 2008, groundwater abstractions along the coastline to supply the Alicante I and II desalination plants have been combined with artificial recharge. This measure, consisting of seawater irrigation over the salt marsh, has reduced the impact on the piezometry and surface ecosystems. The study of the effect of this measure on groundwater flow is addressed by applying an inverse problem protocol to temperature profiles monitored in a piezometer located inside the recharge area. Information on monthly seawater irrigation volumes, rainfall, and average air and seawater temperatures have also been gathered as input data to quantify vertical flow. An upward flow component for the period 2010–2022 that varies between 2 × 10<sup>−9</sup> and 7.5 × 10<sup>−7</sup> m/s has been found. These values decrease near the surface, where the flow is mainly horizontal.https://www.mdpi.com/2073-4441/15/6/1093groundwater flownumerical simulationsartificial rechargeinverse problemtemperature–depth profile time series (TDPTS)
spellingShingle José Antonio Jiménez-Valera
Iván Alhama
Emilio Trigueros
Quantification of Groundwater Vertical Flow from Temperature Profiles: Application to Agua Amarga Coastal Aquifer (SE Spain) Submitted to Artificial Recharge
Water
groundwater flow
numerical simulations
artificial recharge
inverse problem
temperature–depth profile time series (TDPTS)
title Quantification of Groundwater Vertical Flow from Temperature Profiles: Application to Agua Amarga Coastal Aquifer (SE Spain) Submitted to Artificial Recharge
title_full Quantification of Groundwater Vertical Flow from Temperature Profiles: Application to Agua Amarga Coastal Aquifer (SE Spain) Submitted to Artificial Recharge
title_fullStr Quantification of Groundwater Vertical Flow from Temperature Profiles: Application to Agua Amarga Coastal Aquifer (SE Spain) Submitted to Artificial Recharge
title_full_unstemmed Quantification of Groundwater Vertical Flow from Temperature Profiles: Application to Agua Amarga Coastal Aquifer (SE Spain) Submitted to Artificial Recharge
title_short Quantification of Groundwater Vertical Flow from Temperature Profiles: Application to Agua Amarga Coastal Aquifer (SE Spain) Submitted to Artificial Recharge
title_sort quantification of groundwater vertical flow from temperature profiles application to agua amarga coastal aquifer se spain submitted to artificial recharge
topic groundwater flow
numerical simulations
artificial recharge
inverse problem
temperature–depth profile time series (TDPTS)
url https://www.mdpi.com/2073-4441/15/6/1093
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