Basic and other measurements of radiation at station Gobabeb (2014-09)@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）。两组仪器的测量差值将用于质量控制流程，该流程通过人工核查两组仪器及其差值的半日尺度日变化曲线图表完成。由于每日例行清洁作业，多数不合格测量值会在上午被剔除。导致测量差值偏大的其他诱因还包括观测站附近的鸟类、昆虫活动及人员往来。该区域每年会出现频次随季节变化的规律性雾天事件，通常雾天后半夜形成，并于日出数小时后消散。长波辐射计（pyrgeometer）的机壳温度几乎不会低于露点，但仪器防护罩可能出现水汽凝结现象。