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The stable water isotope composition (δ18O, δD, d excess) of wedge ice is commonly interpreted as wintertime climate proxy. Paleoclimate studies based on ice-wedge data cover different timescales and periods of the late Quaternary. In the long-term scale the temporal resolution is rather low and corresponds to Pleistocene and the Holocene stratigraphic units. Recent progress has been made in developing centennial Late Glacial and Holocene time series of ice-wedge stable isotopes by applying radiocarbon dating of organic remains in ice samples.