Raw data, model outputs and plotting scripts resulting from NERC Grant NE/L011050/2: Rethinking carbonate diagenesis: clues to past carbon cycling from an overlooked carbon sink
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Supplemental files (plotting scripts, tables) in support of Greene et al., 2019. Early Cenozoic Decoupling of Climate and Carbonate Compensation Depth Trends. PP2019.Greeneetal.SupplementaryTables.xlsx Tables S1-S3. Raw data for CCD time-slice reconstruction for NP8, NP10-11, and NP12-13, respectively. Raw data for each CCD time-slice reconstruction (program, site number, current and paleo- latitude/longitude, underlying basement age, current water depth, sediment cover, reconstructed paleodepth (see Methods), wt% CaCO3 mean, and individual wt% CaCO3 measurements. Tables S4-S18. Model output: time series of pCO2 and Ca2+ weathering flux for each ensemble #1 experiment. Tables S19-S22. Final year model output for each experiment in each ensembles 1-4. Final year model output for each experiment ensembles 1-4 (outgassing rate modification factor relative to x3 pre-industrial pCO2, pCO2, mean ocean [DIC], mean ocean [ALK], POC export, Ca2+ weathering flux, mean ocean temperature, mean land surface air temperature, overturning stream function min/max, and final year CSH and CCD (following Goodwin and Ridgwell [2010]). For ensembles 2-4 bolded columns indicate model variables roughly fixed across all experiments within the ensemble. PP2019_Greeneetal_Subsidence.m Matlab script for calculating paleodepth from current water depth and seafloor age. This script plots a subsidence curve for a single location and displays the paleodepth for that location at a user-specified point in the past using the subsidence equations from Cramer et al., 2009 'Ocean overturning since the Late Cretaceous: Inferences from a new benthic foraminiferal isotope compliation', Paleoceanography 24(4), PA4216 with a simplified sediment unloading term. PP2019_Greeneetal_plot_CCDcontour.m Matlab script for contouring depth/wt% carbonate data into contoured CCD snapshot. In support of Published Paper: Greene, S.E., Ridgwell, A., Kirtland Turner, S., Schmidt, D.N., Pälike, H., Thomas, E., Greene, L.K. and Hoogakker, B.A.A. (2019), Early Cenozoic Decoupling of Climate and Carbonate Compensation Depth Trends. Paleoceanography and Paleoclimatology, 34: 930-945. https://doi.org/10.1029/2019PA003601
本补充文件配套于Greene等人2019年发表的论文《早新生代气候与碳酸盐补偿深度趋势解耦》，包含绘图脚本与表格文件。 PP2019.Greeneetal.SupplementaryTables.xlsx： 表S1-S3：分别对应NP8、NP10-11与NP12-13的碳酸盐补偿深度（Carbonate Compensation Depth, CCD）时间切片重建原始数据。各CCD时间切片重建的原始数据包括：程序编号、站位编号、当前与古纬度/经度、基底年代、当前水深、沉积物覆盖层厚度、重建古水深（详见方法部分）、碳酸钙（CaCO₃）重量百分比均值，以及单一样品的碳酸钙重量百分比测量值。 表S4-S18：模型输出结果，即集合试验#1中各实验的二氧化碳分压（pCO₂）与钙离子（Ca²⁺）风化通量时间序列。 表S19-S22：集合1-4中各实验的最终年份模型输出结果，具体包括：相对于工业革命前pCO₂的3倍的脱气速率修正系数、pCO₂、海洋平均溶解无机碳（Dissolved Inorganic Carbon, DIC）浓度、海洋平均总碱度（Alkalinity, ALK）、颗粒有机碳（Particulate Organic Carbon, POC）输出通量、Ca²⁺风化通量、海洋平均温度、陆地表面平均气温、翻转环流流函数的极值，以及最终年份的方解石饱和层（Calcite Saturation Horizon, CSH）与CCD（遵循Goodwin与Ridgwell 2010年的研究方法）。对于集合2-4，加粗列代表该集合内所有实验中大致固定的模型变量。 PP2019_Greeneetal_Subsidence.m：用于根据当前水深与海底年龄计算古水深的Matlab脚本。该脚本可绘制单点沉降曲线，并基于Cramer等人2009年发表于《Paleoceanography》第24卷第4期的论文《晚白垩世以来的海洋翻转环流：基于新的底栖有孔虫同位素数据集的推断》（PA4216）中的沉降方程，结合简化的沉积物卸载项，输出用户指定过去时间点的该点位古水深。 PP2019_Greeneetal_plot_CCDcontour.m：用于将水深/碳酸钙重量百分比数据绘制成等值线形式的CCD快照的Matlab脚本。 本文件配套的已发表论文：Greene, S.E., Ridgwell, A., Kirtland Turner, S., Schmidt, D.N., Pälike, H., Thomas, E., Greene, L.K. 与 Hoogakker, B.A.A. (2019)，《早新生代气候与碳酸盐补偿深度趋势解耦》，《古海洋学与古气候学》，34卷：930-945。https://doi.org/10.1029/2019PA003601
