This dataset collection provides observation-constrained reconstructions of Arctic Ocean hydrography and diagnostic geostrophic circulation for the period 2011–2021. The datasets were generated using a
VIKING20X-JRA-short (Biastoch et al., 2021) is part of a series of VIKING20X simulations under JRA55-do atmospheric forcing. It is based on a restart from a pre-spun experiment in 1980 (VIKING20X-CORE;