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UP: Fachverband Umweltphysik
UP 1: Oceanography and Climate Modelling
UP 1.4: Vortrag
Donnerstag, 2. September 2021, 11:45–12:00, H3
A Virtual Field Campaign along the MOSAiC track — •Rajka Juhrbandt1, Suvarchal K. Cheedela1, Nikolay Koldunov1, 2, and Thomas Jung1, 3 — 1Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung (AWI), Bremerhaven, Germany — 2MARUM - Center for Marine Environmental Sciences, Bremen, Germany — 3Institute of Environmental Physics, University of Bremen, Bremen, Germany
The recently completed Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) can serve as reference to evaluate current and future ocean state of the Arctic Ocean. With this premise, we perform a virtual MOSAiC expedition in historical and ssp370-scenario experiments in data generated by CMIP6 models. Results for other paths are presented additionally.
The timespan covered ranges from preindustrial times (1851-1860) through present-day up to a 4K world (2091-2100). Preliminary results using AWI-CM model suggest that for scenario simulations a thinning of the colder surface layer and a warming of the layer between 200 and 1200 m along the MOSAiC path can be expected, while there is no significant change in temperature below this depth.
The Python-centric tool used for the analysis simplifies preprocessing of a pool of CMIP6 data and selecting data on space-time trajectory. It exposes an interface that is agnostic to underlying model or its grid type. The tool's ease of use is presented to demonstrate the potential for similar virtual field campaigns using past observations and arbitrary trajectories