Measurements of N2O isotopologues in the stratosphere: Influence of transport on the apparent enrichment factors and the isotopologue fluxes to the troposphere

  title={Measurements of N2O isotopologues in the stratosphere: Influence of transport on the apparent enrichment factors and the isotopologue fluxes to the troposphere},
  author={Sunyoung Park and E. Atlas and K. Boering},
  journal={Journal of Geophysical Research},
[1] Stratospheric N2O is known to be enriched in the heavy isotopes 15N and 18O relative to tropospheric N2O, primarily because of the preferential photolysis of light isotopologues. We present measurements of δ15N, δ18O, and site-specific δ15N on N2O from 32 stratospheric whole air samples collected by the NASA ER-2 aircraft between 1997 and 2000 from 62°N to 89°N with N2O mixing ratios ranging from 51 to 313 ppbv. The relationships between the isotopic compositions and N2O mixing ratios show… Expand

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