This book is unique as it is tailored specifically to the local researchers’ studies that manifest the use of geoinformation technologies in oceanography for Malaysian seas. Sharing seas with other Asian countries entails that Malaysia to strengthen research in oceanography for the benefits of regional community. Moreover, in the era of climate change, there is a critical demand for continous and real time ocean observation and monitoring. Hence, formulation of strategies and actions to adapt, monitor and mitigate impacts of climate change at international, regional and national levels are the focus of attention of many stakeholders. The advancements in geoinformation technologies including remote sensing, geomatics, Geographic Information Science (GIS) and big data infrastructure have pushed this boundary to allow scientists to accurately model and predict various phenomena. Data acquisition, management, analysis, modelling and forecasting related to ocean and seas at larger and local scales are now feasible without destructing the nature. The ten chapters in this book cover a wide range of topics from the recent satellite technologies for monitoring the ocean to spatial modelling of Malaysian seas and connecting oceanography data in big data infrastructure. This book will be beneficial for students, researchers as well as environmentalist.