Articles | Volume 17, issue 7
Atmos. Chem. Phys., 17, 4627–4639, 2017
https://doi.org/10.5194/acp-17-4627-2017
Atmos. Chem. Phys., 17, 4627–4639, 2017
https://doi.org/10.5194/acp-17-4627-2017

Research article 07 Apr 2017

Research article | 07 Apr 2017

Annual variation in event-scale precipitation δ2H at Barrow, AK, reflects vapor source region

Annie L. Putman et al.

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Latest update: 13 Apr 2021
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Short summary
Water vapor source and transport are linked to the stable isotopes of precipitation of 70 storms at Barrow, AK, USA. Barrow's vapor came from the North Pacific in winter and the Arctic Ocean in summer. Half the isotopic variability was explained by the size of the temperature drop from the vapor source to Barrow, the evaporation conditions, and whether the vapor traveled over mountains. Because isotopes reflect the regional meteorology they may be early indicators of Arctic hydroclimatic change.
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