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Victor Parra
Centro Fondap CRHIAM, Concepción 4070411, Chile

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Journal article
Published: 07 November 2019 in Water
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Groundwater storage and discharge are important processes that have not yet been sufficiently studied in some parts of Chile. Additionally, in watersheds without snow cover or glaciers, groundwater storage and release are the main sources of minimum flow generation; therefore, improvements are required to characterize this process. This study aimed to use recession flow analysis to link groundwater storage depletion to the predominant geological characteristics of each watershed in order to improve our understanding of the groundwater storage-release process in 24 watersheds in south-central Chile. The results allowed different groundwater storage behaviors associated with different geological characteristics to be identified, making recession flow analysis a valuable tool for improving the representation and conceptualization of this process in order to advance toward better minimum flow predictions.

ACS Style

Víctor Parra; José Luis Arumí; Enrique Muñoz; Jerónimo Paredes. Characterization of the Groundwater Storage Systems of South-Central Chile: An Approach Based on Recession Flow Analysis. Water 2019, 11, 2324 .

AMA Style

Víctor Parra, José Luis Arumí, Enrique Muñoz, Jerónimo Paredes. Characterization of the Groundwater Storage Systems of South-Central Chile: An Approach Based on Recession Flow Analysis. Water. 2019; 11 (11):2324.

Chicago/Turabian Style

Víctor Parra; José Luis Arumí; Enrique Muñoz; Jerónimo Paredes. 2019. "Characterization of the Groundwater Storage Systems of South-Central Chile: An Approach Based on Recession Flow Analysis." Water 11, no. 11: 2324.

Journal article
Published: 20 August 2019 in Water
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Due to population growth and expansion in the agricultural and industrial sectors, the demand for water has increased. However, water availability in some regions has decreased due to climate change trends and variability, necessitating innovative strategies and adaptation in water allocation to avoid conflicts among users in a hydrological system. This paper presents a resilience analysis and a conceptual hydrological modeling approach to evaluate the resilience capacity of a new water allocation rule in the Laja Lake basin in southern Chile. Resilience assessments included absorptive and adaptive capacities with four system states: resilient, susceptible, resistant, and vulnerable. A modeling approach was used considering the climate variability uncertainty and climate change trends of the Laja system. Characterization of adaptive and absorptive capacities showed that the Laja Lake basin moved from resistant to vulnerable. Hydrological modeling analyses showed that after a new water allocation agreement, the Laja Lake system is moving from vulnerable to susceptible, since the new rule has more adaptive alternatives to face climate variability. The new rule diminishes the possibilities of conflicts among users, ensuring the fulfillment of water needs for uses such as farming and ecosystem services such as landscaping, and allows for increased water allocation for energy in wet hydrological years.

ACS Style

Enrique Muñoz; Christian Guzmán; Yelena Medina; Jan Boll; Victor Parra; José Luis Arumí. An Adaptive Basin Management Rule to Improve Water Allocation Resilience under Climate Variability and Change—A Case Study in the Laja Lake Basin in Southern Chile. Water 2019, 11, 1733 .

AMA Style

Enrique Muñoz, Christian Guzmán, Yelena Medina, Jan Boll, Victor Parra, José Luis Arumí. An Adaptive Basin Management Rule to Improve Water Allocation Resilience under Climate Variability and Change—A Case Study in the Laja Lake Basin in Southern Chile. Water. 2019; 11 (8):1733.

Chicago/Turabian Style

Enrique Muñoz; Christian Guzmán; Yelena Medina; Jan Boll; Victor Parra; José Luis Arumí. 2019. "An Adaptive Basin Management Rule to Improve Water Allocation Resilience under Climate Variability and Change—A Case Study in the Laja Lake Basin in Southern Chile." Water 11, no. 8: 1733.

Journal article
Published: 20 July 2019 in Water
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Choosing a model that suitably represents the characteristics of a watershed to simulate low flows is crucial, especially in watersheds whose main source of baseflow generation depends on groundwater storage and release. The goal of this investigation is to study the performance and representativeness of storage-release process modeling, considering aspects such as the topography and geology of the modeled watershed through regional sensitivity analysis, in order to improve low-flow prediction. To this end, four groundwater storage-release structures in various watersheds with different geological (fractured and sedimentary rock) and topographic domains (steep and gentle slopes) were analyzed. The results suggest that the two-reservoir structure with three runoff responses is suitable (better) for simulating low flows in watersheds with fractured geological characteristics and rugged or steep topography. The results also indicate that a one-reservoir model can be adequate for predicting low flows in watersheds with a sedimentary influence or flat topography.

ACS Style

Víctor Parra; Jose Luis Arumí; Enrique Muñoz. Identifying a Suitable Model for Low-Flow Simulation in Watersheds of South-Central Chile: A Study Based on a Sensitivity Analysis. Water 2019, 11, 1506 .

AMA Style

Víctor Parra, Jose Luis Arumí, Enrique Muñoz. Identifying a Suitable Model for Low-Flow Simulation in Watersheds of South-Central Chile: A Study Based on a Sensitivity Analysis. Water. 2019; 11 (7):1506.

Chicago/Turabian Style

Víctor Parra; Jose Luis Arumí; Enrique Muñoz. 2019. "Identifying a Suitable Model for Low-Flow Simulation in Watersheds of South-Central Chile: A Study Based on a Sensitivity Analysis." Water 11, no. 7: 1506.