Articles | Volume 21, issue 13
Atmos. Chem. Phys., 21, 10159–10177, 2021
https://doi.org/10.5194/acp-21-10159-2021
Atmos. Chem. Phys., 21, 10159–10177, 2021
https://doi.org/10.5194/acp-21-10159-2021

Measurement report 07 Jul 2021

Measurement report | 07 Jul 2021

Measurement report: Spatial variability of northern Iberian rainfall stable isotope values – investigating atmospheric controls on daily and monthly timescales

Ana Moreno et al.

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Cited articles

AEMET and Instituto de Meteorologia de Portugal: Atlas climático Ibérico, Temperatura del aire y precipitación (1971–2000), Lisboa u.a., 2011. 
Aemisegger, F., Spiegel, J. K., Pfahl, S., Sodemann, H., Eugster, W., and Wernli, H.: Isotope meteorology of cold front passages: A case study combining observations and modeling, Geophys. Res. Lett., 42, 5652–5660, https://doi.org/10.1002/2015GL063988, 2015. 
Aggarwal, P. K., Alduchov, O. A., Froehlich, K. O., Araguas-Araguas, L. J., Sturchio, N. C., and Kurita, N.: Stable isotopes in global precipitation: A unified interpretation based on atmospheric moisture residence time, Geophys. Res. Lett., 39, L11705, https://doi.org/10.1029/2012GL051937, 2012. 
Aggarwal, P. K., Romatschke, U., Araguas-Araguas, L., Belachew, D., Longstaffe, F. J., Berg, P., Schumacher, C., and Funk, A.: Proportions of convective and stratiform precipitation revealed in water isotope ratios, Nat. Geosci., 9, 624–629, https://doi.org/10.1038/ngeo2739, 2016. 
Ambach, W., Dansgaard, W., Eisner, H., and Møller, J.: The altitude effect on the isotopic composition of precipitation and glacier ice in the Alps, Tellus, 20, 595–600, https://doi.org/10.3402/tellusa.v20i4.10040, 1968. 
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Short summary
We present a large and unique dataset of the rainfall isotopic composition at seven sites from northern Iberia to characterize their variability at daily and monthly timescales and to assess the role of climate and geographic factors in the modulation of δ18O values. We found that the origin, moisture uptake along the trajectory and type of precipitation play a key role. These results will help to improve the interpretation of δ18O paleorecords from lacustrine carbonates or speleothems.
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