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Martos-Rosillo, S.
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Martos-Rosillo, S.
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- PublicationOpen AccessCorrelation of the seasonal isotopic amplitude of precipitation with annual evaporation and altitude in alpine regions(2016)
; ; ; ; ; ; ; ; ;Jódar, J. ;Custodio, E. ;Liotta, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia ;Lambán, L. J. ;Herrera, C. ;Martos-Rosillo, S. ;Sapriza, G. ;Rigo, T. ; ;; ; ; ; ;Abstract The time series of stable water isotope composition relative to IAEA-GNIP meteorological stations located in alpine zones are analyzed in order to study how the amplitude of the seasonal isotopic composition of precipitation (Aδ) varies along a vertical transect. A clear relationship between Aδ and local evaporation is obtained, with slopes of â 0.87 â °/100 mm/yr and â 7.3 â °/100 mm/yr for Aδ18O and Aδ2H, respectively. When all sampling points of the vertical transect receive the same moisture sources, then a linear relationship between Aδ and elevation is obtained, with vertical gradients of 0.16 â °/100 mm/yr and 1.46 â °/100 mm/yr for Aδ18O and Aδ2H, respectively.155 28