Project: NSF BEAR-oNS_Data: Terpenoids Measured from North Slope Alaska at DOE ARM and NEON sites during summer 2022 and 2023

In this project we investigated the transition of vegetation zones in the Alaskan Arctic along a transect across the North Slope of Alaska (NSA), from Toolik to Prudhoe Bay, and at Utqiaġvik (i.e., Barrow), to conclusively demonstrate to what extent biogenic emissions from tundra impact organic aerosol in the Alaskan Arctic. This project was a collaborative effort between multiple institutions, led by Principal Investigator (PI) Dr. Rebecca Sheesley at Baylor University. Our contribution was the measurement of ambient volatile organic compounds (VOCs), with a focus on biogenic sources, using two-dimensional mass spectrometry with time-of-flight mass spectrometry. Ambient measurements allow evaluation of emissions models and elucidation of relevant chemistry in this region. This dataset reports mass concentrations (µg/m³, micrograms per cubic meter) and mixing ratios (ppt, parts per trillion) for terpenoids (terpenes and oxygenated terpenes, typically of biogenic origin) measured on the North Slope of Alaska during the summers of 2022 and 2023. The samples were collected at two locations (DOE ARM [U.S. Department of Energy Atmospheric Radiation Measurement user facility] and NEON [National Ecological Observatory Network]) with lat and lon (latitude and longitude) reported in the metadata. Samples were collected onto dual sorbent bed (100 mg [milligram] Tenax TA 35/60 and 200 mg Carbograph 1 TD 60/80 in series) cartridges and then analyzed using automated thermal desorption (ATD) system coupled to a Pegasus 4D GC/GC-TOF-MS.