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Kalinangan Refereed Journal

Volume no. 28 | 2020/12
Issue no. 2


Title
HYDROLOGICAL SYSTEM ANALYSIS AND GROUNDWATER MODELING OF THE CALUMPANG WATERSHED USING GEOSPATIAL TOOLS
Author
Siddartha B. Valle, RCE; Jake Maramot, RCE; and Renz John Atienza, RCE
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Downloads: 8
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Abstract
Urbanization and climate change necessitate the evaluation of water conservation and management strategies. Modeling the response of hydrological systems to variation in climactic patterns will aid in understanding its effect on inconstant recharge rates on the flow regime. This study implemented a three-dimensional conceptual model of the Calumpang watershed by integrating geospatial tools: ArcGIS for analyzing geo-referenced data, HECHMS for hydrological analysis, and GMS for groundwater modeling. The results revealed that lithology of the soil strata, comprising of subsurface horizons of clay and adobe significantly reduces the rate of percolation into the groundwater. Besides, groundwater recharge is impeded by the expansion of impervious covers. To improve watershed storage, the researchers recommend the development of more forested patches.
Keywords
Batangas City, Calumpang watershed, groundwater modeling, GIS, HEC-HMS, GMS, Hydrological assessment
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