Basic and other measurements of radiation at station Gobabeb (2013-11)

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.

纳米比亚戈巴比斯地区的下行短波辐射（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（本数据库未收录该两台仪器的相关数据）。仪器对的测量差值被用于质量控制流程，该流程通过人工检视仪器对及其差值的半日昼夜变化曲线完成。由于每日仪器清洁作业，多数晨间的观测值会被剔除。导致观测差值偏大的其他原因包括站点周边的鸟类、昆虫活动及人员到访。该区域全年雾天发生频率存在周期性变化，雾通常于后半夜生成，并在日出数小时后消散。长波辐射计（pyrgeometer）的壳体温度几乎不会低于露点，但仪器的观测穹顶可能出现水汽凝结。