“…Here, the mean diff F O 2 ,c , diff F O 2 ,T and diff F O 2 ,v were -0.53 ± 0.04, -1.98 ± 0.20 and -0.47 ± 0.24 μmol m -2 s -1 , respectively. By applying the three-heights flux-gradient method after Faassen et al (2022), diff F O 2 for the daytime hour had a similar magnitude for diff F O 2 ,c with -0.13 μmol m -2 s -1 and for diff F O 2 ,v with -4.31 μmol m -2 s -1 , and was larger for diff F O 2 ,T with 4.72 μmol m -2 s -1 . The corresponding nighttime diff F O 2 ,c , diff F O 2 ,T and diff F O 2 ,v derived from the three-heights flux-gradient method were -0.50, -2.41 and -0.66 μmol m -2 s -1 , indicating the similar diff F O 2 ,c and diff F O 2 ,v , but a larger magnitude of diff F O 2 ,T than with two-heights flux-gradient method.…”