Document Type
Thesis
Degree
Master of Science (MS)
Major/Program
Civil Engineering
First Advisor's Name
Arturo Leon
First Advisor's Committee Title
committee chair
Second Advisor's Name
Hector R. Fuentes
Second Advisor's Committee Title
committee member
Third Advisor's Name
Ali Ebrahimian
Third Advisor's Committee Title
committee member
Keywords
Hydrologic Response, SWAT, Climate Change, Land Change, Hydrologic Modelling
Date of Defense
6-30-2023
Abstract
This thesis assesses the impacts of climate and land use changes on hydrological responses in the Mayales Watershed by applying the Soil and Water Assessment Tool (SWAT) model for streamflow generation. Located in Nicaragua, the study watershed covers an extensive area of 894 km2, characterized predominantly by its main land use of Range Grasses. The model was calibrated and validated using monthly historical streamflow records from 1990 to 2008. Six future climate and land use scenarios were simulated using regional projections obtained from local agencies. The findings revealed that under Scenario #6 (precipitation decreasing, temperature rising, and land use change), the watershed system responded with a significant decrease in water yield, percolation, and surface runoff by about 62%, 48%, and 56%, respectively. Additionally, there was a rising in evapotranspiration of approximately 21%. The results will support the identification of appropriate adaptation strategies and sustainable water resource regulation.
Identifier
FIDC011212
ORCID
0000-0001-5615-7419
Recommended Citation
Mayorga, Hector Eliezer, "Hydrologic Response Using the SWAT (Soil and Water Assessment Tool) Model to Estimate the Effects of Climate and Land Use Change Scenarios in the Mayales Watershed" (2023). FIU Electronic Theses and Dissertations. 5354.
https://digitalcommons.fiu.edu/etd/5354
Included in
Environmental Engineering Commons, Hydraulic Engineering Commons, Other Civil and Environmental Engineering Commons
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