Nitrous oxide and methane in two tropical estuaries in a peat-dominated  region of northwestern Borneo

Müller, Denise; Bange, Hermann W.; Warneke, Thorsten; Rixen, Tim; Müller, Moritz; Mujahid, Aazani; Notholt, Justus

doi:https://doi.org/10.5194/bg-13-2415-2016

Articles | Volume 13, issue 8

https://doi.org/10.5194/bg-13-2415-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-13-2415-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 13, issue 8

Research article

|

26 Apr 2016

Research article |

| 26 Apr 2016

Nitrous oxide and methane in two tropical estuaries in a peat-dominated region of northwestern Borneo

Denise Müller, Hermann W. Bange, Thorsten Warneke, Tim Rixen, Moritz Müller, Aazani Mujahid, and Justus Notholt

Data sets

Measurements of dissolved N2O and CH4 during SO218 GEOMAR https://memento.geomar.de/

Atmospheric Methane Dry Air Mole Fractions from the NOAA ESRL Carbon Cycle Cooperative Global Air Sampling Network Dlugokencky, E. J., Lang, P. M., Crotwell, A. M., Masarie, K. A., and Crotwell, M. J. ftp://aftp.cmdl.noaa.gov/data/trace_gases/ch4/flask/surface/

Nitrous oxide data from the NOAA/ESRL halocarbons in situ program Dutton, G. S., Elkins, J. W., and Hall, B. D. ftp://aftp.cmdl.noaa.gov/data/hats/n2o/insituGCs/CATS/monthly/

Climate data worldwide Deutscher Wetterdienst (DWD) http://www.dwd.de/bvbw/appmanager/bvbw/

Short summary

Estuaries act as sources of the greenhouse gases nitrous oxide (N₂O) and methane (CH₄) to the atmosphere. We provide first measurements of N₂O and CH₄ in two estuaries in north-western Borneo, a region which is dominated by peatlands. We show that N₂O and CH₄ concentrations in these estuaries are moderate despite high organic carbon loads, that nutrient enhancement does not lead to enhanced N₂O emissions, and that the wet season dominates the variability of the emissions in these systems.