全球海洋叶绿素浓度8天平均遥感数据集（2018年）

本产品面向于海洋叶绿素浓度长时间序列变化趋势分析，将多星遥感叶绿素数据（SeaWiFS、MODIS-Aqua、MERIS、VIIRS-SNPP、OLCI-Sentinel3A）进行的融合，提升了全球长时间序列叶绿素变化趋势和速率估算的准确性；此外，为了增加时间跨度，该数据集还包括了1978-1986年CZCS的叶绿素浓度数据（未参与融合处理)。产品时间跨度为1978-1986(CZCS)、1998-2020(多星融合)，空间分辨率4km，时间分辨率8天平均。

This product is developed for long-term trend analysis of ocean chlorophyll concentration time series. By fusing multi-satellite remote sensing chlorophyll datasets including SeaWiFS, MODIS-Aqua, MERIS, VIIRS-SNPP and OLCI-Sentinel3A, it improves the accuracy of estimating global long-term chlorophyll concentration trends and their change rates. Furthermore, to extend the overall temporal coverage, this dataset also includes chlorophyll concentration data from the CZCS sensor during 1978–1986, which was not used in the fusion process. The product has a temporal coverage of 1978–1986 (CZCS) and 1998–2020 (multi-satellite fused), with a spatial resolution of 4 km and a temporal resolution of 8-day averaged composites.