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Summary
Daily simulations (12h spin-up) have been performed with a polar adapted COSMO-CLM (CCLM) 5.0 version [1, 2] for the winter seasons (Nov. to April) 1978-2012 for the Arctic, forced with AWI-CM CMIP6 data [3, 4]. AWI-CM data have a resolution of 100 km for the atmosphere and about 10 km for the sea ice and ocean. The horizontal resolution of CCLM is ca. 15km with 60 vertical model levels. Data are given on a rotated grid.
Core Data: 1-hourly data of most 2D variables include for example: temperature, wind, radiation, surface fluxes, humidity, cloud cover, pressure, precipitation, ...
3D data: 1-hourly data on model levels (pressure, temperature, wind, humidity, …)
Pressure Level data: 1-hourly data of temperature, wind and humidity for pressure levels (200, 300, 500, 700, 850, 925, 1000 hPa)
files names: note that the date in file names is shifted by one day as it indicates model start time.
reference (concerning model setup): https://doi.org/10.5194/gmd-13-1809-2020 This research was funded by the Federal Ministry of Education and Research (BMBF) under grant 03F0831C in the frame of German–Russian cooperation “WTZ RUS: Changing Arctic Transpolar System (CATS)”. The COSMO-CLM model was provided by the German Meteorological Service and the CLM community. This work used resources of the Deutsches Klimarechenzentrum (DKRZ) granted by its Scientific Steering Committee (WLA) under project IDs bb0474 and bb0958.
References
[1] Steger, C. and Bucchignani, E. (2020). Regional Climate Modelling with COSMO-CLM: History and Perspectives. Atmosphere, 11, https://doi.org/10.3390/atmos11111250 [2] Zentek, Rolf; Heinemann, Günther. (2020). Verification of the regional atmospheric model CCLM v5.0 with conventional data and lidar measurements in Antarctica. Geosci. Model Dev., 13, 1809–1825, https://doi.org/10.5194/gmd-13-1809-2020 [3] Semmler, T., Danilov, S., Gierz, P., Goessling, H. F., Hegewald, J., and Hinrichs, C. E. A. (2020). Simulations for CMIP6 With the AWI Climate Model AWI-CM-1-1, J. Adv. Model. Earth Syst., 12, 1–34, https://doi.org/10.1029/2019MS002009.
[4] Teske, V., Timmermann, R., Nissen, C., Zentek, R., Semmler, T., Heinemann, G., 2025: Simulated density reorganization on the Weddell Sea continental shelf sensitive to atmospheric forcing. Ocean Sci., 21, 1205–1221. https://doi.org/10.5194/os-21-1205-2025.