The Upper Silesian Coal Basin in Poland is one of the major European hotspots of CH₄ release. Until now, no data concerning short-term CH₄ emissions from coal mines have been accessible worldwide. They are available only on a yearly timescale. No values are provided on a higher temporal scale, that’s why the measurements presented here are of great importance. This paper discusses short-term CH₄ emissions from ventilation shafts of three mining fronts (Mf) divided into two periods. The concentrations of CH₄ in shafts varied from 0.05 to 0.4 %. The highest levels occurred in Shaft IV (Mf I) and Shaft VI (Mf II): from 0.15 to 0.38 % (Period 1). These values correspond to emission levels ranging from 27 to 75 m³/min (Shaft IV) and from 18 to 40 m³/min (Shaft VI). In Period 2, the highest concentrations of CH₄ occurred in Shaft VI (Mf II and III): from 0.2 to 0.4 %. The most significant CH₄ emissions were recorded for Shaft VI (Mf II) and ranged from 29 to 54 m³/min. Presented data have been used to validate the measurements obtained in the CoMet campaign, which aimed at verifying the sensitivity of the test equipment operating from aircraft. During the test flights of HALO in 2015, the CoMet team achieved a remarkable consistency of measurements conducted with airborne equipment (26 ± 3m³/min) and the emission data (24.34 m³/min), for Shaft VI (Mf II). The analysed short-term data for individual shafts are more reliable and can improve CH₄ flux estimates during the CoMet campaign in 2018.

波兰的上西里西亚煤盆地是欧洲CH ₄释放的主要热点之一。迄今为止，全世界尚未获得有关煤矿短期CH ₄排放的数据。它们仅在每年的时间范围内可用。没有在更高的时间尺度上提供任何值，这就是为什么此处显示的测量非常重要的原因。本文讨论了分成两个时期的三个采矿前沿（Mf）通风井的短期CH ₄排放。竖井中CH ₄的浓度从0.05％到0.4％不等。最高水平发生在第四竖井（Mf I）和第六竖井（Mf II）中：从0.15％到0.38％（时期1）。这些值对应于27至75 m ^3的排放水平/ min（IV轴）和18至40 m ³ / min（VI轴）。在时期2中，六号竖井（Mf II和III）中CH _4的浓度最高：从0.2％到0.4％。竖井VI（Mf II）记录到的最大CH ₄排放量为29至54 m ³ / min。呈现的数据已用于验证在CoMet活动中获得的测量结果，该活动旨在验证从飞机操作的测试设备的灵敏度。在2015年HALO的试飞期间，CoMet团队使用机载设备（26±3m ³ / min）和排放数据（24.34 m ³/ min），用于轴VI（Mf II）。在2018年CoMet活动期间，所分析的单个轴的短期数据更加可靠，并且可以改善CH ₄流量估算值。