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During the Synoptic Arctic Survey cruise in the summer of 2021 a variety of different transient tracers were measured. On a continues basis measurements of CFC-12 and SF6 in water samples were caried out. In addition to that water samples for other tracers were collected at 6, so called transient tracer super stations. These other tracers were 39Ar, 14C, noble gases, 129I, 236U and Medusa tracers (HCFC-22. HCFC-141b, HCFC-142b, HFC-134a, HFC-125, PFC-14)
Sampling was conducted on IB Oden during the Synoptic Arctic Survey from July-September 2021 for microbial interactions and organic matter export. Sea ice, meltponds and the water column were sampled for fungal DNA/RNA, fungal lipids, Transparent Exopolymer Particles, gypsum and microscopy of fungi.