# Dataset Connections The file "Dating_Models_Reservoir_Sediment_Records.xlsx" is the data utilized for the manuscript "A Comparison of Dating Models for Reservoir Sediment Records using Mass Accumulation, Radioisotopes, and Bayesian Statistics." Authors Benjamin Webster (corresponding author), Oak Ridge Associated Universities & USDA National Sedimentation Laboratory, benjamin.webster@usda.gov Joseph M. Smoak, University of South Florida, smoak@usf.edu Richard Vachula, Auburn University, rsv0005@auburn.edu Matthew Waters, Auburn University, mwaters@auburn.edu Stephen Golladay, GA Water Planning and Policy Center, sgolladay@h2opolicycenter.org ## About the dataset As described in the manuscript "A Comparison of Dating Models for Reservoir Sediment Records using Mass Accumulation, Radioisotopes, and Bayesian Statistics." Three sediment cores were collected from three reservoirs in the Southeastern United States. These cores were processed and used to develop multiple age profiles and their corresponding sedimentation rates. Within the manuscript, theses profiles are compared. ### Description of the data AgeModel_Data tab: Core = Sediment record/core identifier HA23 = Lake Harding, BL05 = Lake Blackshear, LSF = Lake Seminole Depth = Sample middle depth in the sediment core ; cm BulkD = Bulk density of sample ; g·cm⁻3 MAR = Mass Accumulation Rate age ; yr MAR_SedR = Mass Accumulation Rate sedimentation rate ; g·cm⁻2·yr⁻1 MAR_Age = Mass Accumulation Rate age sense date of dam completion ; yr CRS = Constant Rate of Supply age ; yr CRS_ERR = Constant Rate of Supply age error ; yr CRS_SedR = Constant Rate of Supply sedimentation rate ; g·cm⁻2·yr⁻1 CRS_Age = Constant Rate of Supply age sense date of dam completion ; yr Bacon = Bacon model age ; yr Bacon_MIN = Bacon lower age range at 2.5% ; yr Bacon_MAX = Bacon upper age rang at 97.5% ; yr Bacon_ERR = Difference between Bacon_MIN and _MAX ; yr Bacon_SedR = Bacon sedimentation rate ; g·cm⁻2·yr⁻1 Bacon_Age = Bacon age sense date of dam completion ; yr Plum = Plum model age ; yr Plum_MIN = Plum lower age range at 2.5% ; yr Plum_MAX = Plum upper age rang at 97.5% ; yr Plum_ERR = Difference between Plum_MIN and _MAX ; yr Plum_SedR = Plum sedimentation rate ; g·cm⁻2·yr⁻1 Plum_Age = Plum Pigments_Data tab: Core = Sediment record/core identifier HA23 = Lake Harding, BL05 = Lake Blackshear, LSF = Lake Seminole Depth = Sample max depth in the sediment core ; cm OM = Organic matter from Loss-On-Ignition : % BulkD = Bulk density of sample ; g·cm⁻3 fuco = Fucoxanthin photosynthetic pigment ; nmol·g⁻1 organic matter allo = Alloxanthin photosynthetic pigment ; nmol·g⁻1 organic matter diato = Diatoxanthin photosynthetic pigment ; nmol·g⁻1 organic matter lut_zea = Lutein Zeaxanthin photosynthetic pigment ; nmol·g⁻1 organic matter chl_b = Chlorophyll b photosynthetic pigment ; nmol·g⁻1 organic matter chl_a = Chlorophyll a photosynthetic pigment ; nmol·g⁻1 organic matter pheo_a = Pheophytin a photosynthetic pigment ; nmol·g⁻1 organic matter pyro = Pyropheophorbide photosynthetic pigment ; nmol·g⁻1 organic matter canth = Canthaxanthin photosynthetic pigment ; nmol·g⁻1 organic matter b_car = Beta Caratini photosynthetic pigment ; nmol·g⁻1 organic matter total_flor = Total Florescence of photosynthetic pigments ; nmol·g⁻1 organic matter Isotope_Data tab: Sediment record/core identifier HA23 = Lake Harding, BL05 = Lake Blackshear, LSF = Lake Seminole Depth = Sample max depth in the sediment core ; cm Pb210 = 210Pb decay ; Bq·⁻kg Pb210_sd = 210Pb decay standard error ; Bq·⁻kg Pb210_Activ = 210Pb activity ; dpm·⁻g Ra226 = 226Ra decay ; Bq·⁻kg Ra226_sd = 226Ra decay standard error  ; Bq·⁻kg Cs137 = 137Cs decay ; dpm·⁻g Cs137_sd = 137Cs decay standard error ; dpm·⁻g