Keklik1 (entity_id = 185): The DCF is not known. However the method used for age-depth modelling is independent of the knowledge of the DCF and its secular variations.  All measured proxies (d18O, d13C and Sr/Ca) show no long term trend, indicating that the DCF is stationary and justifying this approach. The individual 14C ages were not necessary to calibrate to obtain a reasonable age depth relationship. Corr_age, corr_age_uncert_pos and corr_age_uncert_neg were not used for age-depth modeling. Do not use those values for any new remodelling of an age-depth relation. Age-depth modelling followed the procedure proposed in Lechleitner et al. (2016, QG, https://doi.org/10.1016/j.quageo.2016.05.006 ). The raw isotope values are thought to be largely influenced by in-cave fractionation effects.  In-cave fractionation corrected values are available at https://www.ncdc.noaa.gov/paleo-search/study/23083