Pacific Antarctic Cirumpolar Current strength at IODP Site 383-U1541@en

The data contain the ACC strength record at IODP Site U1541. The absolute ACC strength record was calculated from sortable silt data using a formula from the Scotia Sea by McCave et al. (2017). The sortable silt record was calculated from ln(Zr/Rb) using a regional calibration from discrete grain-size measurement . The ln(Zr(/Rb record was interpolated to 0.5 kyr and 9-point adjacent averaged.本数据集包含国际大洋发现计划（International Ocean Discovery Program，IODP）U1541站位的南极绕极流（Antarctic Circumpolar Current，ACC）强度记录。该绝对ACC强度记录由McCave等（2017）基于斯科舍海区域提出的公式，从可分选粉砂数据中计算得到。可分选粉砂记录则通过离散粒度测量得到的区域校准关系，由锆铷比自然对数（ln(Zr/Rb)）计算获得。原始ln(Zr/Rb)数据先被插值至0.5千年的时间分辨率，随后进行九点邻域平均处理。