Detlev Helmig is an Associate Research Professor at the Institute of Arctic Research at the University of Colorado. After receiving his university education and Ph.D. degree in Germany he held appointments at the Statewide Air Pollution Center, University of California, Riverside, and the National Center of Atmospheric Research, in Boulder, USA. His research focuses on development of atmospheric research instrumentation that is then applied to studies of atmospheric composition, transport, and chemistry. Particular focus areas are volatile organic compounds, biogenic emissions, and polar snow chemistry. His laboratory at the Institute of Arctic and Alpine Research at the University of Colorado operates the Global Atmospheric Volatile Organic Compounds Monitoring (http://instaar.colorado.edu/arl/Global_VOC.html), which is a center piece of the GAW VOC program. Prof. Helmig has served on several WMO-GAW expert groups, including those for reactive gases and for volatile organic compounds, and been a regular lecturer at the GAWTEC training schools. He has published more than 180 peer-reviewed publications in the field of Atmospheric Science and is the Editor in Chief of the Atmospheric Science Domain of the open access and non-profit journal Elementa, published by the University of California Press.