#TITLE_ALTERNATIVE#

• Main Author: SURYA (NIM: 12909019); pembimbing: Dr. Susanna, S.Si., MT., OKY
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/19107
• Institution: Institut Teknologi Bandung

Carbon dioxide concentration in the atmosphere were increased time after especially after the beginning of industrial whereas carbon dioxide concentration not in their stability. Ocean and atmosphere have a stability sistem over carbon dioxie exchange. In this study, methods that used to calculated carbon flux between ocean and atmosphere was using empiric equation which is derived from sea surface temperature, sea surface salinity, and wind speed with assumption that atmospheric CO2 partial pressure value in the entire Indonesia waters was same. From the calculation results, this study obtained that the highest ocean exhaust CO2 was found in May with magnitude 0,0041 mol/m2 day and the highest ocean uptake CO2 was found in August with magnitude 0,0014 mol/m2 day. Influence of the gas transfer rate and ΔpCO2 between ocean and atmosphere were more dominant in the calculation of sea-air CO2 fluxes compared to the gas solubility. ΔpCO2 between the ocean and the atmosphere itself is strongly influenced by sea surface temperature. Gas transfer rate was strongly influenced by wind speed. While the value of gas solubility is inversely proportional to sea surface temperature and influenced by salinity with an average correlation value 0.28. Monthly CO2 flux variation in deep seas like Arafura Sea and Indian Ocean were higher than monthly CO2 flux variation in shallow seas like Java Sea, Riau Islands Waters, and Makassar Strait