The hydrological Model used in this research was this model use finite elements that Vflo, can simulate streamflow based on geospatial data to simulate interior locations in the drainage network and determine channel flow and overland flow, it was fundamental a physical configuration of the watershed to be studied, such as a Digital Elevation Model (DEM), the topography digitalized, soils map, Land use map and information about the basin. Some hydrologic and hydraulic studies have been conducted by Sepulveda et al., [1996]; [2012]. Rojas Table 33. Drainage area peak discharge relationship [FEMA, 2012]. Drainage Peak Discharge (cms) Station Name Area (sq km) 10% 2 % 1 % 0.2 % Rio Grande Añasco 467.73 1,809 3,797 5,130 10,542 at Rio Grande Añasco Near 347.33 1,390 3,031 4,078 8,329 San Sebastian Rio Grande Añasco 385.26 upstream confluence Rio 1,527 3,289 4,432 9,070 Casey Rio Grande Añasco 414.88 downstream confluence 1,631 3,481 4,695 9,624 Rio Casey Rio Yaguez 35.4 292 595 770 1,289 at Mouth Rio Guanajibo 329.65 1,352 3,896 5,745 14,294 at Mouth Rio Guanajibo 310.53 1,215 3,637 5,343 13,196 Near Hormigueros Rio Guanajibo at Hwy 119 91.39 604 1,325 1,713 2,991 at San German Rio Guanajibo 303.04 downstream confluence 1,206 3,507 5,137 12,620 Rio Rosario
The hydrological Model used in this research was Vflo, this model use finite elements that can simulate streamflow based on geospatial data to simulate interior locations in the drainage network and determine channel flow and overland flow, it was fundamental a physical configuration of the watershed to be studied, such as a Digital Elevation Model (DEM), the topography digitalized, soils map, Land use map and information about the basin. Some hydrologic and hydraulic studies have been conducted by Sepulveda et al., [1996]; Rojas [2012]. Table 33. Drainage area peak discharge relationship [FEMA, 2012]. Drainage Area (sq km) Station Name Peak Discharge (cms) 10% 2 % 1 % 0.2 % 467.73 Rio Grande Añasco at 1,809 3,797 5,130 10,542 347.33 Rio Grande Añasco Near San Sebastian 1,390 3,031 4,078 8,329 385.26 Rio Grande Añasco upstream confluence Rio Casey 1,527 3,289 4,432 9,070 414.88 Rio Grande Añasco downstream confluence Rio Casey 1,631 3,481 4,695 9,624 35.4 Rio Yaguez at Mouth 292 595 770 1,289 329.65 Rio Guanajibo at Mouth 1,352 3,896 5,745 14,294 310.53 Rio Guanajibo Near Hormigueros 1,215 3,637 5,343 13,196 91.39 Rio Guanajibo at Hwy 119 at San German 604 1,325 1,713 2,991 303.04 Rio Guanajibo downstream confluence Rio Rosario 1,206 3,507 5,137 12,620
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