15 Sep 2021

15 Sep 2021

Review status: this preprint is currently under review for the journal ESSD.

A new local meteoric water line for Inuvik (NT, Canada)

Michael Fritz1, Sebastian Wetterich1, Joel McAlister2, and Hanno Meyer3 Michael Fritz et al.
  • 1Permafrost Research, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, Germany
  • 2Aurora Research Institute, Aurora College, Inuvik, NT, Canada
  • 3Polar Terrestrial Environmental Systems, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, Germany

Abstract. The paper presents a new local meteoric water line (LMWL) of precipitation stable oxygen and hydrogen isotopes from Inuvik in the Western Canadian Arctic. Data were obtained over 37 months between August 2015 and August 2018 resulting in 134 measurements of the isotopic composition of both types of precipitation, snow and rain. For 33 months of the sampling period each month is represented at least two times from different years. The new LMWL from Inuvik is characterized by a slope of 7.39 and an intercept of –6.70, and fills a data gap in the Western Arctic where isotopic composition data of precipitation are scarce and stem predominantly from before the year 1990. Regional studies of meteorology, hydrology, environmental geochemistry and paleoclimate will likely benefit from the new Inuvik LMWL.

Michael Fritz et al.

Status: open (until 10 Nov 2021)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2021-294', Trevor Porter, 08 Oct 2021 reply
  • RC2: 'Comment on essd-2021-294', István Fórizs, 15 Oct 2021 reply

Michael Fritz et al.

Data sets

Stable oxygen (δ18O) and hydrogen (δD) isotopes in precipitation from Inuvik in the western Canadian Arctic (2015-2018) Fritz, Michael; Wetterich, Sebastian; McAlister, Joel; Meyer, Hanno

Michael Fritz et al.


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Short summary
From 2015 to 2018 we have collected rain and snow samples in Inuvik, Canada. We have measured the stable water isotope composition of oxygen (δ18O) and hydrogen (δ2H) with a mass spectrometer. This data will be of interest for other scientists that work in the Arctic. They will be able to compare our modern data with their own isotope data in old ice, for example in glaciers, and in permafrost. This will help to correctly interpret the climate signals of the environmental history of the Earth.