Flexible paleoclimate age-depth models using an autoregressive gamma process

Hydroclimatic shifts in northeast Thailand during the last two millennia – the record of Lake Pa Kho

“…The age-model was constructed using Bacon, a Bayesian statisticsbased routine that models accumulation rates by dividing a sequence into many thin segments and estimating the (linear) accumulation rate for each segment based on the (calibrated) 14 C dates, together with assumptions about accumulation rate and its variability between neighboring segments (Blaauw and Christen, 2011). Prior to selecting the present age models (CP3_82, CP3_82_hiatus) ( Figure 2B and C), multiple model runs were performed using different assumptions and parameters.…”

Sea-level changes in Iceland and the influence of the North Atlantic Oscillation during the last half millennium

“…3) using the Bacon package in R (Blaauw and Christen, 2011). Bacon requires as input a prior mean accumulation rate which we calculated using the depth of the AD 1226-7 pumice tephra at 58 cm (Gehrels et al, 2006;Haflidason et al, 1992;Sigurgeirsson 1992).…”

Constraints on regional drivers of relative sea-level change around Cordova, Alaska

“…We construct age--depth models for both lakes using the program Bacon 2.2 in R (Blaauw and Christen, 2011), incorporating the radiocarbon (Table 1) and artificial radionuclide fallout data. Bacon uses a Bayesian approach to construct age--depth relations through the calibrated--age probability distributions of radiocarbon dates, or other age information.…”