REVIEW OF TRMM SATELLITE DATA TO CALCULATE MICROHYDRO POTENTIAL (CASE STUDY: SOUTHERN PART OF WEST JAVA)

• Main Author: JUMARTIN (NIM : 12807010); Pembimbing : Dra. Atika Lubis, MS ; Edi Riawan, S.Si, MT, FARID
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/18453
• Institution: Institut Teknologi Bandung

Micro hydro power plant can be used as a solution to address and reduce the electrification problem in the Southern part of West Java. The Soil and Water Assessment Tool (SWAT) model can be used to calculate the water balance in a watershed with rainfall as the input. The river discharge of SWAT simulation will be used to calculate the potential power. However, the main concern is that the rain station does not always update its rainfall data. The Tropical Rainfall Measuring Mission (TRMM) always has an updated version of rainfall calculation and can be downloaded freely and easily. Therefore the data from TRMM can be used as an alternative data as the primary input for SWAT models. However, since the rainfall data from TRMM has an average estimation lower than that of actual rainfall from observation, the TRMM data needs to be corrected first. In this study, the bias correction method is used in order to approach the value of TRMM rainfall observations. In comparison between the river’s discharge from SWAT simulation using TRMM and actual discharge at four stations, namely stations Cimandiri, Cisokan, Cangkuang and Citarik, the correlation obtained are: 0.77, 0.76, 0.81 and 0.80. The RMSE simulated discharge from the TRMM data compared to the actual discharge is 10.62, 5.18, 13.91 and 5.56. The correlation and RMSE does not differ much from the correlations generated by the discharge of a SWAT simulation using observed rainfall data.