Diurnal Variation of CO₂ Flux in an Urban Area of Tokyo

• DOI: 10.2151/sola.2015-024
• Publication Date: 2015-07-19T22:01:55Z
• Authors: Tatsuki Hirano; Hirofumi Sugawara; Shohei Murayama; Hiroaki Kondo
• Keywords: Diurnal temperature variation

From November 2012 to October 2013, we measured the eddy covariance flux of carbon dioxide (CO2) in middle Tokyo, Japan. The study area is characterized as having low-vegetated mid-rise residence with some arterial roads. Contribution human activities CO2 was evaluated by hourly inventory analysis.The serves a net source whose annual total +4300 gC m−2 yr−1. resulting diurnal has one peak morning and late evening. This amplitude larger winter also on weekday. An analysis for shows that arises from both traffic household gas use, whereas evening just gas. significant difference between weekday holiday should be attributed emission.