Sediment Transport Modeling in the Pasig River, Philippines Post Taal Volcano Eruption

Following the eruption of the Taal Volcano in January 2020 and its continuous signs of unrest in the preceding years, this study delves into the investigation of sediment transport in the Pasig River, Philippines. The historical data of total suspended solids (TSS) and arsenic indicated a notable in...

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Main Authors: Joan Cecilia Casila, Howard Lee Andres, Soufiane Haddout, Katsuhide Yokoyama
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Geosciences
Subjects:
Online Access:https://www.mdpi.com/2076-3263/14/2/45
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author Joan Cecilia Casila
Howard Lee Andres
Soufiane Haddout
Katsuhide Yokoyama
author_facet Joan Cecilia Casila
Howard Lee Andres
Soufiane Haddout
Katsuhide Yokoyama
author_sort Joan Cecilia Casila
collection DOAJ
description Following the eruption of the Taal Volcano in January 2020 and its continuous signs of unrest in the preceding years, this study delves into the investigation of sediment transport in the Pasig River, Philippines. The historical data of total suspended solids (TSS) and arsenic indicated a notable increase starting from the year 2020. The field measurements were conducted in February and March of 2022, two years after the eruption. Due to the observed homogeneity in the river’s mixing, a refined 1D sediment transport model was developed. In this study, HEC-RAS modeling software was employed. The calibration process using the Laursen transport function yielded an impressive R<sup>2</sup> value of 0.9989 for the post-eruption model. This predictive accuracy underscores the robustness of the developed model. The study’s scope was further expanded by creating a model for February 2020, incorporating water quality data gathered by the Pasig River Coordinating and Management Office. The model simulation results showed peak TSS values of 120.63 mg/L and 225.15 mg/L in February 2022 and February 2020, respectively. The results of the study highlight the probable impact of geological events on sediment dynamics within the Pasig River, which could help manage and sustain ongoing river improvements.
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spelling doaj.art-ee349e86989941a99f720b030934838b2024-02-23T15:18:04ZengMDPI AGGeosciences2076-32632024-02-011424510.3390/geosciences14020045Sediment Transport Modeling in the Pasig River, Philippines Post Taal Volcano EruptionJoan Cecilia Casila0Howard Lee Andres1Soufiane Haddout2Katsuhide Yokoyama3Land and Water Resources Engineering Division, IABE, CEAT, University of the Philippines Los Baños, Laguna 4031, PhilippinesLand and Water Resources Engineering Division, IABE, CEAT, University of the Philippines Los Baños, Laguna 4031, PhilippinesDepartment of Physics, Faculty of Science, Ibn Tofail University, Kenitra 14000, MoroccoDepartment of Civil and Environmental Engineering, Tokyo Metropolitan University, Hachioji 192-0397, Tokyo, JapanFollowing the eruption of the Taal Volcano in January 2020 and its continuous signs of unrest in the preceding years, this study delves into the investigation of sediment transport in the Pasig River, Philippines. The historical data of total suspended solids (TSS) and arsenic indicated a notable increase starting from the year 2020. The field measurements were conducted in February and March of 2022, two years after the eruption. Due to the observed homogeneity in the river’s mixing, a refined 1D sediment transport model was developed. In this study, HEC-RAS modeling software was employed. The calibration process using the Laursen transport function yielded an impressive R<sup>2</sup> value of 0.9989 for the post-eruption model. This predictive accuracy underscores the robustness of the developed model. The study’s scope was further expanded by creating a model for February 2020, incorporating water quality data gathered by the Pasig River Coordinating and Management Office. The model simulation results showed peak TSS values of 120.63 mg/L and 225.15 mg/L in February 2022 and February 2020, respectively. The results of the study highlight the probable impact of geological events on sediment dynamics within the Pasig River, which could help manage and sustain ongoing river improvements.https://www.mdpi.com/2076-3263/14/2/45Pasig Riversediment transport modelingTaal Volcano EruptionHEC-RAS
spellingShingle Joan Cecilia Casila
Howard Lee Andres
Soufiane Haddout
Katsuhide Yokoyama
Sediment Transport Modeling in the Pasig River, Philippines Post Taal Volcano Eruption
Geosciences
Pasig River
sediment transport modeling
Taal Volcano Eruption
HEC-RAS
title Sediment Transport Modeling in the Pasig River, Philippines Post Taal Volcano Eruption
title_full Sediment Transport Modeling in the Pasig River, Philippines Post Taal Volcano Eruption
title_fullStr Sediment Transport Modeling in the Pasig River, Philippines Post Taal Volcano Eruption
title_full_unstemmed Sediment Transport Modeling in the Pasig River, Philippines Post Taal Volcano Eruption
title_short Sediment Transport Modeling in the Pasig River, Philippines Post Taal Volcano Eruption
title_sort sediment transport modeling in the pasig river philippines post taal volcano eruption
topic Pasig River
sediment transport modeling
Taal Volcano Eruption
HEC-RAS
url https://www.mdpi.com/2076-3263/14/2/45
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AT howardleeandres sedimenttransportmodelinginthepasigriverphilippinesposttaalvolcanoeruption
AT soufianehaddout sedimenttransportmodelinginthepasigriverphilippinesposttaalvolcanoeruption
AT katsuhideyokoyama sedimenttransportmodelinginthepasigriverphilippinesposttaalvolcanoeruption