SCALE-WIN19 MLD and Euphotic Depth

The file includes the mixed layer depth (MLD; m) calculated as: 1. Depth at which density changes by 0.03 kg m^-3 from the value at 10m 2. Depth of the maximum Brunt-Vaissala Frequency The file includes the euphotic depth (m) calculated as the depth at which iPAR is 1% of surface iPAR. Please note that not all stations have a value due to either being sampled at night or the depth of the CTD cast was deeper then depth rating of the sensor (1500 m). Included is the diffuse attenuation coefficient (m^-1) calculated as the slope of the depth vs log(iPAR).本文件包含混合层深度（mixed layer depth, MLD；单位：m），其计算方式分为两种：1. 相较于10米层密度变化0.03 kg·m⁻³的水深；2. 布伦特-维萨拉频率（Brunt-Vaissala Frequency）最大值对应的水深。 本文件同时包含真光层深度（单位：m），其计算方式为瞬时光合有效辐射辐照度（iPAR）为表层iPAR的1%时的水深。 请注意，并非所有站位均存在有效数据，原因包括采样于夜间，或CTD投放深度超出传感器额定深度（1500 m）。 本文件还包含漫射衰减系数（单位：m⁻¹），其计算方式为水深与log(iPAR)的关系曲线的斜率。