Program: Collaborative Research for Common Regional Issues (CRC)
Field: Civil Engineering
Principal Investigator: Prof. Dr. ZULKIFLI BIN YUSOP
Sending University: Universiti Teknologi Malaysia (UTM)
Japanese Co-Investigator: Prof. Dr. Eichi NAKAKITA
Japanese University: Kyoto University
The study aimed at assessing the watershed level impact of climate and land use changes on water security. Specifically the study involved modelling of future flood and drought, and water quality. This study was headed by Universiti Teknologi Malaysia (UTM in Johor), Kyoto Universiti and Institut Teknologi Sepuloh Nobember, Surabaya. Future flood and drought in Sungai Johor river basin were modelled using historical and future predicted rainfall data from the National Hydraulics Research Institute Malaysia (NAHRIM) which was downscaled using the RegHCM-PM model generated from GCM-MRI. The future rainfall data underwent bias correction by comparing the historical observed against the historical predicted data. The flood model was calibrated using rainfall and flood data during the major floods in December 2006 and January 2007. The future drought for Sungai Johor River Basin was also predicted based on the Standardise Precipitation Index (SPI). Water quality trends were analysed along Sungai Johor and Brantas river in Java Indonesia. Water quality in both catchment is affected by high organic loading from residential and/or plantation activities. Stronger networking with researcher from Kyoto University, Institute Teknologi Sepuluh Nobember, Surabaya through field visit, training, meeting and discussion Training at Kyoto University in the field of statistical downscaling of climatic data. The collaboration is still going on.