Comparação de dados de xCO2 estimados pelo satélite OCO-2 com dados medidos por navios sobre o Oceano Atlântico tropical e por estações terrestres

Abstract

Since the 18th century, with the beginning of the Industrial Revolution, there has been an increase in the emission into the atmosphere of carbon dioxide, the main driver of climate change, mainly due to population growth. The comparison of atmospheric carbon dioxide (CO2) data estimated by the Orbiting Carbon Observatory - 2 (OCO-2) with data measured by ships over the tropical Atlantic Ocean and by land stations contributes to research and decision-making on the effect of climate change through estimates of the increase in CO2. The main goal of the study is to verify and compare the satellite estimates using data from in situ observations near the Tropical Atlantic Ocean through statistical and observational analyses. The results showed that most of the comparisons coincided with the days of peak concentrations. Although some differences in the data, the OCO-2 presented itself as an efficient tool for measuring xCO2 over the tropical Atlantic Ocean, which allows collaboration with studies to understand better this increase and thus intensify the search to reverse the current situation of the planet's atmosphere, influenced by anthropic impacts.