Basic and other measurements of radiation at station Gobabeb (2014-07)@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.在纳米比亚戈巴布（Gobabeb）站点，短波段下行辐射（SWD）、长波段下行辐射（LWD）与直接太阳辐射（DIR）均采用两台同型号仪器进行冗余观测，该两台仪器未纳入本数据库。两台配对仪器的观测差值将用于数据质量控制环节，该质控环节通过人工检视配对仪器的半日逐日变化曲线及其差值曲线完成。受每日清晨的设备清洁操作影响，多数清晨时段的观测值会被剔除。导致观测差值偏大的其他诱因包括站点内的鸟类、昆虫活动及人员活动。该站点全年存在规律的雾天过程，其发生频率随季节变化。雾天通常于后半夜生成，并在日出数小时后消散。长波辐射计（pyrgeometer）的机壳温度几乎不会低于露点，但仪器的观测罩可能会出现水汽凝结。