Figure 11

Daily mean curves of surface methane concentration and air temperature at study areas R-1 and R-2. (a) Daily mean curve of surface methane concentration and air temperature at R-1 in 2016, (b) Daily mean curve of surface methane concentration and air temperature at R-1 in 2017, (c) Daily mean curve of surface methane concentration and air temperature at R-1 in 2018, (d) Daily mean curve of surface methane concentration and air temperature at R-1 and R-2 in 2019.