Mapping cumulative carbon dioxide concentrations at two meters above the ground for greenspace assessment in surabaya

This paper presented the cumulative concentration of carbon dioxide in ambient air of Surabaya to assess the presence of greenspace. Time series within 24 hours data of carbon dioxide concentration was applied to measure the results of CO₂ emission and uptake. A total 137 sites were set to take air samples for the each season, dry and rainy. The cumulative concentration was negative for CO₂ uptake of more than emission, which occured in the greenspace and coastal area. Negative and positive values also differ over the season and landuse. As for the results of the whole city there were negative and positive values, which differ by the season and landuse. There was about 33-37% of the city area that absorbed CO₂ from the air for a year.