We present net emission estimates of CH4 and N2O of The Netherlands based on measurements conducted during the period of May 2006 to April 2009 at station Lutjewad, The Netherlands (6°21' E, 53°24' N, 1 m a.s.l.). 222Radon mixing ratios were applied as an indicator for vertical mixing and long-range air mass transport and used to calculate the net surface fluxes from atmospheric mixing ratios of CH4 and N 2O. Our study shows that our measurement site Lutjewad is well-suited to measure emissions from The Netherlands and validation of the national inventories using the 222Radon flux method. Since this study is purely observation-based it is independent from inventories or atmospheric models. Our results are compared to the national inventories as reported to the UNFCCC. We found net emissions of: (15.2±5.3) t km &-2a-1 for CH4 and (0.9±0.3) t km-2a-1 for N2O. These values are lower than the inventory-based emissions (2006-2008 averages) of (18.3±3.3) t km-2a-1 for CH4, and (1.3±0.6) t km &-2a-1 for N2O, but the differences are insignificant.
CITATION STYLE
Van Der Laan, S., Neubert, R. E. M., & Meijer, H. A. J. (2009). Methane and nitrous oxide emissions in The Netherlands: Ambient measurements support the national inventories. Atmospheric Chemistry and Physics, 9(24), 9369–9379. https://doi.org/10.5194/acp-9-9369-2009
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