A closer look of Inner Indonesian Seas through float profilers deployment
S Prasetyo, S Adiprabowo, M A Rahman, M F Geonova, F Alfahmi, A Ramdhani, E Prasetyo

Indonesian Agency for Meteorology Climatology and Geophysics

Abstract

The marine weather information demand increases alongside the marine activities around Indonesian waters. Additionally, ocean observation supports the marine weather forecast operation by assimilating, validating, and improving data accuracy. Indonesia^s weather authority (BMKG) initiated the float profilers deployments to support the marine weather forecast operation through MMS - I (Maritime Meteorological Strengthening) Program. During the 2022 to 2024 period, this program deploys 48 floats around Indonesia^s prime and strategic waters, i.e., Natuna Sea, Karimata Strait, Java Sea, Makassar Strait, Flores Sea, Banda Sea, and the other future deployment spots. The ongoing deployments provide numerous ocean data. The visualized data provides a comprehensive view of the seasonal ocean dynamics in Indonesia. These dynamics are influenced by various factors, primarily the monsoon patterns and other natural forces. We gather crucial information about the ocean^s stratification and deep profile, including temperature and salinity. Furthermore, the continuous deployments of these profilers offer valuable insights into how the ocean^s behavior changes in response to the monsoon activity, particularly in regions such as the Natuna Sea, Karimata Strait, and the Java Sea. Further investigation and an extended data period are necessary to gain long-term variability of ocean dynamics in order to understand our changing ocean.

Keywords: operational oceanography, marine meteorology, ocean dynamics

Topic: Operational Oceanography