Aspect Study On Carbon Dioxide (CO2) Flux In The Global Ocean Using Satellite

Abstract

Background: The increase of atmospheric CO₂ and the potentially resulting global warming has been a great concern for human society. As it extremly dificult to perform observations of CO₂ flux between air-sea. Ocean contains more than fifty times carbon in the atmosphere and can be taken as buffer limiting the concentration of CO₂ in atmosphere. Carbon dioxide flux between air and ocean is CO₂ concentration in ocean is controlled by physical, chemical and biological processes. It can be determined from air-sea CO₂ concentration differences and carbon dioxide (CO₂) exchange between air-sea, in these rich in nutrients. Method: Data from WOCE ship is analysis with linier regresion, Y = ax – b, get R2 determint coeffisien, calculated with math lab, Net sea-air CO2 Flux Calculated with Flux = K ΔPCO2. Objective: The objective of the present study is as the followings: to detect carbon dioxide flux relations with global warming and to detect partial pressure CO₂ (pCO₂) relations with climate change. Result: The pCO₂ in surface waters of the global oceans varies seasonally over a wide range above and below the current atmospheric pCO₂. The effect of biological utilization of CO₂ is diferentiate from that of seasonal temperature changes using seasonal temperature data.  The seasonal amplitude of surface water pCO₂ in high latitude waters locate pole ward of about 40^o latitude and in the equaturiol zone is dominate by the biology effect, whereas that in the temperate gyre regions is dominated by the temperature effect. These effects are about 6 months out of phase. Accordingly, along the boundaries between these two regimes, they tend to cancel each other, forming a zone of small pCO₂ amplitude. Within satellite data the high pCO₂ cause of decrease of coefficient air-sea of gas exchange and resulting the increasing of TCO₂, SST high cause to decrease TCO₂ but in the equtorial zone TCO₂ high that cause by vertical mixing and up welling. Conclusion: Beside the biological process as respiration and photosynthesis to lessen CO₂ in nature so that do not as source of disaster hence we have to execute, lessening the source of disaster for example; deforestation, combustion of forest, usage of fossil fuel so that do not bother biodiversity as food resilience supporter and balanced of nature.