A decade of CO₂ flux measured by the eddy covariance method including the COVID-19 pandemic period in an urban center in Sakai, Japan.

ABSTRACT: Cities constitute an important source of greenhouse gases, but few results originating from long-term, direct CO₂ emission monitoring efforts have been reported. In this study, CO₂ emissions were quasi-continuously measured in an urban center in Sakai, Osaka, Japan by the eddy covariance method from 2010 to 2021. Long-term CO₂ emissions reached 22.2 ± 2.0 kg CO₂ m^-2 yr^-1 from 2010 to 2019 (± denotes the standard deviation) in the western sector from the tower representing the densely built-up area. Throughout the decade, the annual CO₂ emissions remained stable. According to an emission inventory, traffic emissions represented the major source of CO₂ emissions within the flux footprint. The interannual

SUBMITTER: Ueyama M 

PROVIDER: S-EPMC8958160 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature