The fraction of water last ventilated in a given region in a time less than or equal to 160 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011

<p>Water mass fractions and ages calculated from hydrographic and tracer data using a maximum-entropy inversion technique.</p> <p>This dataset contains the fraction of water last ventilated in a given region in a time less than or equal to 160 years ago as well as the corresponding ensemble standard deviations.</p> <p>Data File Formats:<br /> For a .csv or .tsv format of these data, use the \"Get Data\" button at the top of the BCO-DMO metadata page.&nbsp;<br /> For a Matlab file containing all of the water mass fraction data from this project, see the \"Data Files\" section of the BCO-DMO metadata page.</p>本数据集基于水文数据与示踪剂数据，采用最大熵反演技术（maximum-entropy inversion technique）计算得到水团分数（water mass fractions）与水团年龄。 本数据集包含了在指定区域内末次通风时间不超过160年的水团占比，以及对应的集合标准差（ensemble standard deviations）。 数据文件格式： 若需获取.csv或.tsv格式的本数据集，请点击BCO-DMO元数据页面顶部的「Get Data」按钮。 若需获取包含本项目所有水团分数数据的Matlab文件，请查阅BCO-DMO元数据页面的「Data Files」板块。