[A-CG61] Carbon Cycle Observation and Analysis

[ACG61-P16] Urban Freshwater Systems as Persistent Sources of Atmospheric CO₂: Multiscale Evidence from the Han River Basin

*Geunjae Choi^1,2,3, Sujong Jeong^1,2,3 (1. Department of Environmental Management, Seoul National University, Seoul, Republic of Korea, 2. Institute for Sustainable Development (ISD), Seoul National University, Seoul, Republic of Korea, 3. Climate Tech Center, Seoul National University, Seoul, Republic of Korea)

Keywords:eddy covariance, Urban river CO2 efflux, Air–water gas exchange, Water-quality amplification & climate feedback