Annual total fog amount at Gobabeb, Namibia@en

Based on literature-derived dataset, public-available meteorological observations, and our measurement recordse, we comprehensively compiled a six-decade-long dataset of the monthly and annual fog amount from 1966 to 2023 at Gobabeb, Namibia. Between 1966 and 2002, the daily amount of fog water was recorded at the Gobabeb − Namib Research Institute using a Grunow cylindrical wire mesh screen fog collector (10 cm diameter, 22 cm height, 691.15 cm² area) mounted above a rain gauge (Henschel et al., 1998; Henschel and Seely (2008, doi: 10.1016/j.atmosres.2007.11.015)). Afterward, from 1997 to 2002, Standard Fog Collectors (SFCs), consisting of a 1 m² vertical polyethylene mesh screen (10,000 cm² area) positioned above a 1 m long horizontal funnel, were employed to quantify daily amount of fog water (i.e., event-based fog amount) (Henschel et al., 1998; Henschel and Seely (2008, doi: 10.1016/j.atmosres.2007.11.015)). To maintain data consistency, Henschel et al. (1998) established a linear regression correlation between the daily Grunow-type fog amount and daily SFC-type fog amount (R2 = 0.62), which was utilized to correct and convert Grunow-type fog amount data to SFC units. The corrected monthly Grunow-type fog amount dataset (1966-1996) using the regression line can be obtained from Henschel et al. (1998), and the raw monthly SFC fog amount dataset (1997-2002) is available at Henschel et al. (1998) and Henschel and Seely (2008, doi: 10.1016/j.atmosres.2007.11.015). The raw monthly Grunow-type fog amount dataset (1966-1996) and the mentioned regression line were not shown in Henschel et al. (1998). The event-based SFC-type fog amount dataset from October 2006 to December 2015 was recorded at the Gobabeb − Namib Research Institute. Additionally, we opportunistically recorded event-based fog amount data using the 1 m² SFC as a backup between October 2014 and December 2022. Since October 2014, the hourly amount of fog water was recorded by installing a cylindrical Juvik-type louvered screen fog collector (12.5 cm diameter, 40.6 cm height, 1,594.36 cm² area) on a Young Model 52202 tipping-bucket rain gauge. The Southern African Science Service Centre for Climate Change and Adaptive Land Management (SASSCAL) provides access to this hourly Juvik-type fog amount data via https://sasscalweathernet.org/w_datarequest_we.php?MIsoCode=NA&MMCS=0#StationAnchor. […]本数据集基于文献衍生数据集、公开可用的气象观测数据以及我们的实测记录，全面汇编了1966年至2023年纳米比亚戈巴布（Gobabeb）地区长达六十年的月际与年际雾量数据集。1966年至2002年间，研究人员在纳米比亚戈巴布沙漠研究所（Gobabeb − Namib Research Institute）采用格鲁诺圆柱丝网雾收集器（Grunow cylindrical wire mesh screen fog collector，直径10 cm，高度22 cm，面积691.15 cm²）安装在雨量计上方，记录每日雾水量（Henschel等，1998；Henschel与Seely，2008，doi: 10.1016/j.atmosres.2007.11.015）。1997年至2002年，研究团队采用标准雾收集器（Standard Fog Collectors, SFC）量化每日雾水量，即基于事件的雾量：该设备由面积1 m²的垂直聚乙烯网筛（面积10,000 cm²）与安装于其下方的1米长水平漏斗组成（Henschel等，1998；Henschel与Seely，2008，doi: 10.1016/j.atmosres.2007.11.015）。为保障数据一致性，Henschel等（1998）建立了每日格鲁诺型雾量与每日SFC型雾量的线性回归关联（决定系数R²=0.62），并以此将格鲁诺型雾量数据校正并转换为SFC单位。通过该回归方程校正后的1966-1996年月度格鲁诺型雾量数据集可从Henschel等（1998）获取；1997-2002年的原始月度SFC雾量数据集可从Henschel等（1998）与Henschel与Seely（2008，doi: 10.1016/j.atmosres.2007.11.015）获取。而1966-1996年的原始月度格鲁诺型雾量数据集与上述回归方程并未在Henschel等（1998）中公开。2006年10月至2015年12月的基于事件的SFC型雾量数据集由纳米比亚戈巴布沙漠研究所记录。此外，2014年10月至2022年12月期间，研究团队采用1 m²标准雾收集器作为备份设备，机会性记录了基于事件的雾量数据。自2014年10月起，研究人员在Young Model 52202型翻斗雨量计上安装了圆柱形朱维克百叶窗丝网雾收集器（Juvik-type louvered screen fog collector，直径12.5 cm，高度40.6 cm，面积1594.36 cm²），以记录逐时雾水量。南部非洲气候变化与适应性土地管理科学服务中心（Southern African Science Service Centre for Climate Change and Adaptive Land Management, SASSCAL）通过以下网址提供该逐时朱维克型雾量数据的获取渠道：https://sasscalweathernet.org/w_datarequest_we.php?MIsoCode=NA&MMCS=0#StationAnchor。[…]