To assist atmospheric monitoring at high-alpine sites. a statistical approach for distinguishing between the dominant air masses was developed. This approach was based on a principal component analysis using five gas-phase and two meteorological variables. The analysis focused on the Schneefernerhaus site at Zugspitze Mountain. https://www.ealisboa.com/special-offer-Refurbished-Nautilus-XPLOAD-Plate-Loaded-Lat-Pulldown-hot-buy/