Photosynthetically active radiation below water surface (DP1.20261.001)

Photosynthetically active radiation below water is measured at 1 Hz at lake littoral sensor sets and twice per minute on buoys at lake and river sites. It is reported as 1-minute mean measurements and 30-minute mean values. Latency: Data collected in any given month are published during the second full week of the following month.水下光合有效辐射（Photosynthetically Active Radiation, PAR）的采集遵循差异化频率规范：在湖泊沿岸带传感器组中以1赫兹的频率进行测量，在湖泊与河流站点的浮标上则以每分钟两次的频率采集数据。该数据集以1分钟平均值与30分钟平均值的形式对外发布。数据发布延迟规则如下：当月采集的全部数据将于次月的第二个完整周内予以公布。