Dr I Putu Santikayasa is an Indonesian climate and water resources scientist who serves as Executive Secretary of the CCROM Research Center and Coordinator of the Master’s Program in Applied Climatology at IPB University. He holds a PhD from the Asian Institute of Technology (AIT), Thailand, with expertise in climatology, hydrology, climate change impact assessment, and water resources modeling. His work focuses on developing climate and hydrological models to evaluate water availability, agricultural sustainability, and climate adaptation strategies in Indonesia and Southeast Asia. Dr Santikayasa has collaborated with various international research institutions and development agencies, and has published extensively in peer-reviewed scientific journals.