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Dataset to interpret the δ15N(NH4+) in a Mont Blanc ice core. The document includes high resolution measurements and decadal averages of the CDD16 ice core. High-resolution measurements are in depth (m) or age (a CE). Decadal averages are mass weighted means. The long term values also include the emission inventories inferred from Hoesly et al., 2018 and a calculated δ15N(NH3) of inventories.
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Lamothe et al. (2026) studied this question.
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