NCEO: Monthly global Particulate Organic Carbon (POC) (produced from the Ocean Colour Climate Change Initiative, Version 4.2 dataset)

The National Centre for Earth Observation (NCEO): Monthly global Particulate Organic Carbon (POC) dataset contains POC concentrations gridded on both sinusoidal (SIN) and geographic (GEO) grid projections at 4 km spatial resolution for 1997-2020. The POC dataset has been produced using the Ocean Colour Climate Change Initiative Remote Sensing Reflectance (Rrs) products, Version 4.2. The dataset includes the Rrs at 443 nm and 555 nm with pixel-by-pixel uncertainty estimates for each wavelength. For more details on the algorithm and its validation, please see papers by Stramski et al. (2008) and Evers-King et al. (2017). Please note that the validation of the POC algorithm is a continuing process. To increase the accuracy of POC algorithms, further in situ POC data need to be collected with high spatial and temporal resolution.

国家地球观测中心（National Centre for Earth Observation，NCEO）的月度全球颗粒有机碳（Particulate Organic Carbon，POC）数据集，涵盖1997年至2020年期间、空间分辨率为4千米的POC浓度数据，分别以正弦投影（SIN）和地理投影（GEO）两种网格投影方式完成网格化存储。本数据集基于海洋颜色气候变化倡议（Ocean Colour Climate Change Initiative）的遥感反射率（Remote Sensing Reflectance，Rrs）V4.2版本产品生成。数据集包含443纳米与555纳米波段的遥感反射率数据，且各波段均配有逐像素的不确定性估计值。如需了解算法原理与验证流程的详细细节，请参阅Stramski等人（2008）与Evers-King等人（2017）的相关研究论文。需注意，POC算法的验证工作仍在持续进行中。为进一步提升POC算法的精度，未来仍需收集更高时空分辨率的原位POC实测数据。