PASS: A Portable Atmospheric Sampling System for Chemical Studies in the Marine Troposphere

Abstract

The measurement of many trace substances in the remote marine atmosphere requires that they be collected under controlled conditions and that meteorological and other data concerning these measurements be available to the experimenter. A Portable Atmospheric Sampling System (PASS), including an Automatic System for the Control and Logging of Atmospheric Sampling (ASCLAS), has been developed for use in remote marine regions. PASS includes a walkup sampling tower and several portable electronics and laboratory vans. ASCLAS controls atmospheric sampling by monitoring local atmospheric parameters and compares these to the desired user programmable conditions.