Data are collected during the summer months (typically from the start of June to near the end of September) to avoid instrument riming, which presents a hazard to the equipment and to people servicing the equipment. From 2001 to 2006, samples were collected at hourly intervals (whenever the right meteorological conditions were encountered). To cut costs, 3 hourly sampling began in 2007-2013, which was then reduced to 12 hourly (diurnal) sampling in 2014, which has continued to the present day. The diurnal sampling is scheduled so as to obtain one sample during the nighttime hours (7PM to 7AM local time) and another sample during the daytime hours (7AM to 7PM).


Interactive Cloud Water Chemistry Visualization Tool:


Recent Data:

Historical Data from the Adirondack Lake Survey Corporation:

Historical Data from the Mountain Acid Deposition Program (MADPro):