Atmospheric Radiation Measurement (ARM) Aerosol Observing Systems (AOS) for Surface-Based In Situ Atmospheric Aerosol and Trace Gas Measurements. - UIN, JANEK; AIKEN, ALLISON C.; DUBEY, MANVENDRA K.; CHONGAI KUANG; PEKOUR, MIKHAIL; SALWEN, CYNTHIA; SEDLACEK, ARTHUR J.; SENUM, GUNNAR; SMITH, SCOTT; WANG, JIAN; WATSON, THOMAS B.; SPRINGSTON, STEPHEN R. (Journal of Atmospheric & Oceanic Technology, 2019)