Basic and other measurements of radiation at station Gobabeb (2013-03)@en

In Gobabeb, Namibia SWD, LWD and DIR are each measured redundant with two instruments of the same make (not in this data base). The differences between the pairs are used in the quality control. This is done manually by inspecting plots of half-day diurnal courses of the pairs and their differences. Values are removed mostly in the morning due to daily cleaning. Other reasons for larger differences are birds, insects, or people at the station. There are regular fog events varying in frequency over the year. Usually, the fog appears in the second half of the night and disappears a few hours after sunrise. The case temperatures of pyrgeometers practically never drop below dewpoint but there can be water deposition of the dome.在纳米比亚戈巴比斯（Gobabeb）区域，下行短波辐射（SWD）、下行长波辐射（LWD）与直接太阳辐射（DIR）均采用两台同型号仪器开展冗余测量（该配对仪器未纳入本数据集）。仪器配对测量的差值被用于质量控制流程：质控工作通过人工核查配对仪器的半天日变化曲线及其差值序列完成。因每日晨间清洁操作，多数晨间时段的测量值会被剔除；站点周边的鸟类、昆虫或人员活动也可能导致测量差值偏大。该区域存在年度发生频率各异的常规雾天事件，雾通常于下半夜生成，并在日出数小时后消散。长波辐射计（pyrgeometer）的机壳温度几乎不会低于露点，但仪器的观测穹顶仍可能出现结露现象。