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Rahmadani, Intan (2022) PENGARUH PERUBBAHAN IKLIM TERHADAP DEBIT INFLOW WADUK SELOREJO. Undergraduate (S1) thesis, Universitas Muhammadiyah Malang.


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The rotation of the hydrological cycle is where water will not stop the process which starts from evaporation to the atmosphere and then down to earth through the process of evaporation, transpiration, and precipitation in the hydrological process which can lead to climate change. Climate change occurs due to an increase in carbon dioxide and results in an increase in air temperature and rainfall characteristics which are a source of problems during the dry season, drought often occurs and during the rainy season often experiences flooding. To overcome this problem, a tank model is used to transfer the rain function to discharge with an approach method using a differential evolution algorithm to find the optimal tank parameter value. The tank model research shows that the rainwater catchment area can be replaced with tanks according to the soil structure. This research was conducted in the Konto watershed using secondary data, including rainfall data, climatological data, inflow discharge data, and watersheds. Rainfall, climatology and watershed data are used to calculate the discharge data that enters the soil and becomes river discharge data with an optimization process using a Differential Evolution Algorithm and the help with tool-box from Mat-Lab to find the optimal value of the Konto tank model parameter. Then the result of the analysis of the tank model discharge are close to the reservoir inflow observation discharge. From the calculation results, it is obtained that the magnitude of climate change can be viewed directly from a linear graph where it can be seen in the results of the data showing that there is an increase in temperature of 3% where the temperature affects the inflow discharge which also increased by 12% and obtained from the results of running on the Tank Model that the RMSE value of the training data is 0.1806 m3 while the results of the testing data obtained an RMSE value of 0.14156 m3 can be concluded that there has been a climate change.

Item Type: Thesis (Undergraduate (S1))
Student ID: 201710340311245
Thesis Advisors: Ernawan Setyono (0726016702), Sulianto (0711096702)
Keywords: Tank Model, Differential Evolution Algorithm, Selorejo Reservoir, Transformation Rainfall
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
L Education > LB Theory and practice of education
Q Science > QE Geology
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TC Hydraulic engineering. Ocean engineering
Divisions: Faculty of Engineering > Department of Civil Engineering (22201)
Depositing User: 201710340311245 tanintan1228
Date Deposited: 18 Apr 2022 01:16
Last Modified: 18 Apr 2022 01:16

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