In: Journal of Hydrology and Hydromechanics, vol. 67, no. 1
Kerstin Hürkamp - Nadine Zentner - Anne Reckerth - Stefan Weishaupt - Karl-Friedrich Wetzel - Jochen Tschiersch - Christine Stumpp
Detaily:
Rok, strany: 2019, 49 - 58
Kľúčové slová:
Stable isotopes of oxygen and hydrogen in water; Snow profile; Snowmelt runoff; Isotope fractionation.
URL originálneho zdroja: http://www.ih.sav.sk/jhh
O článku:
High amounts of precipitation are temporarily stored in high-alpine snow covers and play an important role
for the hydrological balance. Stable isotopes of hydrogen (δ2H) and oxygen (δ18O) in water samples have been proven to
be useful for tracing transport processes in snow and meltwater since their isotopic ratio alters due to fractionation. In 18
snow profiles of two snowfall seasons, the temporal and spatial variation of isotopic composition was analysed on Mt.
Zugspitze. The δ18O and δ2H ranged between –26.7‰ to –9.3‰ and –193.4‰ to –62.5‰ in 2014/2015 and between
–26.5‰ to –10.5‰ and –205.0‰ to –68.0‰ in 2015/2016, respectively. Depth-integrated samples of entire 10 cm layers
and point measurements in the same layers showed comparable isotopic compositions. Isotopic composition of the
snowpack at the same sampling time in spatially distributed snow profiles was isotopically more similar than that analysed
at the same place at different times. Melting and refreezing were clearly identified as processes causing isotope
fractionation in surficial, initial base or refrozen snow layers. For the future, a higher sampling frequency with detailed
isotopic composition measurements during melt periods are recommended to improve the understanding of mass
transport associated with snowmelt.
Ako citovať:
ISO 690:
Hürkamp, K., Zentner, N., Reckerth, A., Weishaupt, S., Wetzel, K., Tschiersch, J., Stumpp, C. 2019. Spatial and temporal variability of snow isotopic composition
on Mt. Zugspitze, Bavarian Alps, Germany. In Journal of Hydrology and Hydromechanics, vol. 67, no.1, pp. 49-58. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2018-0019
APA:
Hürkamp, K., Zentner, N., Reckerth, A., Weishaupt, S., Wetzel, K., Tschiersch, J., Stumpp, C. (2019). Spatial and temporal variability of snow isotopic composition
on Mt. Zugspitze, Bavarian Alps, Germany. Journal of Hydrology and Hydromechanics, 67(1), 49-58. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2018-0019
O vydaní: