The purpose of this study is to characterize the chemistry of the wintertime clouds observed in northern Taiwan. The experiment of cloud water collection on an hourly basis for each event was conducted at Bamboo Mt. (~1100 m MSL) during... more
The purpose of this study is to characterize the chemistry of the wintertime clouds observed in northern Taiwan. The experiment of cloud water collection on an hourly basis for each event was conducted at Bamboo Mt. (~1100 m MSL) during the winters of 1996-2010. In total, 130 events with 4589 samples were obtained. In general, there cloud events can be categorized into two cloud types associated with northeast monsoon flow and frontal passage. The average pH for all events ranged in 3.21-5.85, with a mean of 4.26 for all samples. On average, the dominant ions in collected cloud water were Na+, Cl-, SO42-, NO3-, and NH4+. The first two seasalt ions generally can account for more than 50% of total ion concentration. In addition to the statistic analysis, the parameters of Acidifying Potential (AP), Neutralizing Potential (NP and Seasalt Potential (SP) were also introduced to characterize the cloud water chemistry. Associated backward trajectories of airflows for corresponding events w...
