Comprehensive semestral report at National Irrigation Administration - upper Pampanga river integrated irrigation system (NIA-UPRIIS) Division IV
Date
2019
Authors
Janeth J. Socorro
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Abstract
The two-month field practice program was fulfilled, conducted and completed at the NIA-UPRIIS Division IV, Bayanihan, Gapan City, Nueva Ecija. The activity for field practice focused on calibrating and creating stage-discharge ratings of the irrigation canals under NIA-UPRIIS Division IV. The irrigation canals (Penris Main Canals, Lateral G2, Lateral D, Lateral D (acg), Lateral D (bcg), and Guinandusan Creek) are located in Gapan City, PeƱaranda and San Miguel. The water depth, canal width and water velocity were used to determine the cross-sectional and water discharge of each irrigation canal. the calibration of canals within areas of NIA-UPRIIS Division IV were done to update the needed water discharge of the irrigation canal. The determined value of discharge was used to generate rating curve and rating table. The rating curves of the canals (Penris Main Canal, Lateral G2, Lateral D, Lateral D (acg), Lateral D (bcg) and Guinandusan Creek) were created using the gauge height and observed discharge. The rating tables were created using the gauge heights, observed discharges, computed discharges and percent differences of the canals. Results revealed that the actual flow rate of penris Main Canal, Lateral G2,Lateral D, Lateral D (acg), Lateral D (bcg) and Guinandusan Creek under NIA-UPRIIS Division IV was higher than the water discharge. The rating curve of Penris Main Canal, Lateral G2, Lateral D, Lateral D (acg), Lateral D (bcg) and Guinandusan Creek shows that as the gauhe height increases, the actual discharge also increases. The rating table of Penris Main Canal, Lateral G2, Lateral D, Lateral D (acg), Lateral D (bcg) and Guinandusan Creek shows that as the gauge height increases, the corresponding discharge also increases.