AU-ECOS-North-SEA-DIN-2.0.ANA

Moving 6-year analysis and visualization of Water body chlorophyll-a in the North Sea. Four seasons (December-February, March-May, June-August, September-November). Data Sources: observational data from SeaDataNet/EMODnet Chemistry Data Network. Description of DIVA analysis: Geostatistical data analysis by DIVAnd (Data-Interpolating Variational Analysis) tool, version 2.7.9. results were subjected to the minfield option in DIVAnd to avoid negative/underestimated values in the interpolated results; error threshold masks L1 (0.3) and L2 (0.5) are included as well as the unmasked field. The depth dimension allows visualizing the gridded field at various depths.北海水体叶绿素-a为期6年的动态分析与可视化。本数据集涵盖四个季节时段：12月-2月、3月-5月、6月-8月、9月-11月。数据来源为SeaDataNet/EMODnet化学数据网络（SeaDataNet/EMODnet Chemistry Data Network）的观测数据。DIVA分析说明如下：采用版本为2.7.9的数据插值变分分析（Data-Interpolating Variational Analysis，简称DIVAnd）工具开展地统计算法分析。对分析结果应用了DIVAnd中的minfield选项，以避免插值结果出现负值或被低估的数值；本数据集同时纳入误差阈值掩膜L1（0.3）、L2（0.5）以及未掩膜场。通过深度维度可实现不同深度下网格化场的可视化。