D01: Large-scale dynamical mechanisms of Arctic amplification
PIs: Christoph Jacobi, Johannes Quaas , Dörthe Handorf (former PI: Markus Rex)
Arctic amplification does not depend on local feedback processes in the Arctic only, but is also largely a function of remote large–scale atmospheric dynamical mechanisms. The related horizontal atmospheric energy transports into the Arctic change over time due to internally generated and externally forced changes in large–scale atmospheric and oceanic variability patterns. In D01 we will study, whether the horizontal moist static energy (MSE) transports in the atmosphere are impacted by (a) the oceanatmosphere variability and background state, (b) the changing geographical patterns of climate radiative forcing, and (c) the stratospheric variability, which is largely determined by planetary and gravity wave (GW) driven dynamics and the feedback processes between stratospheric dynamics and chemistry. To investigate the relative role of the processes (a), (b), and (c) we will perform a series of ICOsahedra Non-hydrostatic model (ICON) model experiments with (i) prescribed idealised sea ice and oceanic boundary conditions, (ii) idealised changes in mid-latitude radiative forcing patterns, and (iii) modifications of stratospheric GW patterns. To study the impact of the interactive stratospheric ozone chemistry, we complement our simulations with ICON runs including the fast interactive ozone module SWIFT (Semi-empirical Weighted Iterative Fit Technique), which enables mutual interactions between the ozone layer and climate in the global model ICON. Our model results, together with reanalyses and CMIP6 results, will be analysed with respect to (i) MSE transport patterns and large–scale circulation regimes using advanced cluster analyses (e.g., selforganising maps, SOM) to determine current and future trends and changes of atmospheric transport and circulation patterns, and (ii) dynamical mechanisms of Arctic–mid–latitude linkages impacting the detected changes in MSE transport patterns. Special emphasis will be put on the effects of troposphere-stratosphere coupling and low–latitude GW hotspots on the polar vortex dynamics. The modelling results will be compared to observations from the HALO-(AC)³ campaign and satellite retrievals.
Hypothesis:
Atmospheric energy transports critically depend on the ocean-atmosphere background state, changing patterns of climate forcing and stratospheric variability
Specifically we want to answer the following questions:
- How much are the changes in horizontal MSE transports impacted by the ocean-atmosphere background state, changing patterns of climate forcing and stratopheric variability?
- What are the dynamical mechanisms of Arctic-mid-latitude linkages underlying the trends and changes of the horizontal MSE transports?
Achievements phase I
D01 has analysed the horizontal transports of moist static energy into the Arctic using an innovative, self-organising maps algorithm (Mewes and Jacobi, 2019). The impact of Arctic sea-ice decline on the large-scale atmospheric circulation has been analysed in reanalysis data and climate model simulations (Romanowsky et al., 2019). A tropospheric pathway mainly occurs in autumn to early winter and results in more frequent occurrence of blockings over Scandinavia and northern Eurasia. This initiates a stratospheric pathway with enhanced upward propagation of energy to weaken the stratospheric polar vortex. The subsequent downward propagation of these stratospheric circulation anomalies in late winter (Jaiser et al., 2016) contributes to persistent negative North Atlantic Oscillation (NAO) anomalies. An improvement of modelled stratospheric pathway for Arctic-mid-latitude linkages by including interactive stratospheric ozone chemistry into general circulation models was achieved (Romanowsky et al., 2019).
Role within (AC)³
Members
Sina Mehrdad
PhD
University of Leipzig
Leipzig Institute for Meteorology (LIM)
Stephanstr. 3
04103 Leipzig
Prof. Dr. Johannes Quaas
Principal Investigator
University of Leipzig
Leipzig Institute for Meteorology (LIM)
Stephanstr. 3
04103 Leipzig
Dr. Daniel Kreyling
PostDoc
Alfred Wegener Institute
Telegrafenberg A45-N
14473 Potsdam
Prof. Dr. Christoph Jacobi
Principal Investigator
University of Leipzig
Leipzig Institute for Meteorology (LIM)
Stephanstr. 3
04103 Leipzig
Ines Höschel
PhD
Alfred Wegener Institute
Telegrafenberg A45
14473 Potsdam
Dr. Dörthe Handorf
Principal Investigator
Alfred Wegener Institute
Telegrafenberg A45
14473 Potsdam
Former Members
Dr. Markus Rex
Principal Investigator
Alfred-Wegener-Institute Helmholtz Center for Polar and Marine Research
Telegrafenberg A45
14473 Potsdam
Dr. Daniel Mewes
PhD (in phase I)
University of Leipzig
Leipzig Institute for Meteorology (LIM)
Stephanstr. 3
04103 Leipzig
Publications
2023
Karami, K., S. Borchert, R. Eichinger, Ch. Jacobi, A. Kuchar, S. Mehrdad, P. Pisoft, and P. Sacha, 2023: The climatology of elevated stratopause events in the UA-ICON model and the contribution of gravity waves, J. Geophys. Res.: Atmos., 128, e2022JD037907. https://doi.org/10.1029/2022JD037907.
Karami, K.; Garcia, R.; Jacobi, C.; Richter, J. H. & Tilmes, S., 2023: The Holton–Tan mechanism under stratospheric aerosol intervention, Atmos. Chem. Phys., 23, 3799-3818, https://doi.org/10.5194/acp-23-3799-2023
Jaiser, R.; Akperov, M.; Timazhev, A.; Romanowsky, E.; Handorf, D. & Mokhov, I., 2023: Linkages between Arctic and Mid-Latitude Weather and Climate: Unraveling the Impact of Changing Sea Ice and Sea Surface Temperatures during Winter, Meteorol. Z., Schweizerbart Science Publishers, http://doi.org/10.1127/metz/2023/1154
Kirbus, B.; Tiedeck, S.; Camplani, A.; Chylik, J.; Crewell, S.; Dahlke, S.; Ebell, K.; Gorodetskaya, I.; Griesche, H.; Handorf, D.; Höschel, I.; Lauer, M.; Neggers, R.; Rückert, J.; Shupe, M. D.; Spreen, G.; Walbröl, A.; Wendisch, M. & Rinke, A., 2023: Surface impacts and associated mechanisms of a moisture intrusion into the Arctic observed in mid-April 2020 during MOSAiC, Front. Earth Sci., 11, https://doi.org/10.3389/feart.2023.1147848
Wendisch, M.; Brückner, M.; Crewell, S.; Ehrlich, A.; Notholt, J.; Lüpkes, C.; Macke, A.; Burrows, J. P.; Rinke, A.; Quaas, J.; Maturilli, M.; Schemann, V.; Shupe, M. D.; Akansu, E. F.; Barrientos-Velasco, C.; Bärfuss, K.; Blechschmidt, A.-M.; Block, K.; Bougoudis, I.; Bozem, H.; Böckmann, C.; Bracher, A.; Bresson, H.; Bretschneider, L.; Buschmann, M.; Chechin, D. G.; Chylik, J.; Dahlke, S.; Deneke, H.; Dethloff, K.; Donth, T.; Dorn, W.; Dupuy, R.; Ebell, K.; Egerer, U.; Engelmann, R.; Eppers, O.; Gerdes, R.; Gierens, R.; Gorodetskaya, I. V.; Gottschalk, M.; Griesche, H.; Gryanik, V. M.; Handorf, D.; Harm-Altstädter, B.; Hartmann, J.; Hartmann, M.; Heinold, B.; Herber, A.; Herrmann, H.; Heygster, G.; Höschel, I.; Hofmann, Z.; Hölemann, J.; Hünerbein, A.; Jafariserajehlou, S.; Jäkel, E.; Jacobi, C.; Janout, M.; Jansen, F.; Jourdan, O.; Jurányi, Z.; Kalesse-Los, H.; Kanzow, T.; Käthner, R.; Kliesch, L. L.; Klingebiel, M.; Knudsen, E. M.; Kovács, T.; Körtke, W.; Krampe, D.; Kretzschmar, J.; Kreyling, D.; Kulla, B.; Kunkel, D.; Lampert, A.; Lauer, M.; Lelli, L.; von Lerber, A.; Linke, O.; Löhnert, U.; Lonardi, M.; Losa, S. N.; Losch, M.; Maahn, M.; Mech, M.; Mei, L.; Mertes, S.; Metzner, E.; Mewes, D.; Michaelis, J.; Mioche, G.; Moser, M.; Nakoudi, K.; Neggers, R.; Neuber, R.; Nomokonova, T.; Oelker, J.; Papakonstantinou-Presvelou, I.; Pätzold, F.; Pefanis, V.; Pohl, C.; van Pinxteren, M.; Radovan, A.; Rhein, M.; Rex, M.; Richter, A.; Risse, N.; Ritter, C.; Rostosky, P.; Rozanov, V. V.; Donoso, E. R.; Saavedra-Garfias, P.; Salzmann, M.; Schacht, J.; Schäfer, M.; Schneider, J.; Schnierstein, N.; Seifert, P.; Seo, S.; Siebert, H.; Soppa, M. A.; Spreen, G.; Stachlewska, I. S.; Stapf, J.; Stratmann, F.; Tegen, I.; Viceto, C.; Voigt, C.; Vountas, M.; Walbröl, A.; Walter, M.; Wehner, B.; Wex, H.; Willmes, S.; Zanatta, M. & Zeppenfeld, S., 2023: Atmospheric and Surface Processes, and Feedback Mechanisms Determining Arctic Amplification: A Review of First Results and Prospects of the (AC)³ Project, Bull. Am. Meteorol. Soc., American Meteorological Society, 104, E208–E242, https://doi.org/10.1175/bams-d-21-0218.1
Linke, O.; Quaas, J.; Baumer, F.; Becker, S.; Chylik, J.; Dahlke, S.; Ehrlich, A.; Handorf, D.; Jacobi, C.; Kalesse-Los, H.; Lelli, L.; Mehrdad, S.; Neggers, R. A.; Riebold, J.; Garfias, P. S.; Schnierstein, N.; Shupe, M. D.; Smith, C.; Spreen, G.; Verneuil, B.; Vinjamuri, K. S.; Vountas, M. & Wendisch, M., 2023: Constraints on simulated past Arctic amplification and lapse-rate feedback from observations, Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2022-836, [preprint]
2022
Karami K., S. Mehrdad, and Ch. Jacobi, 2022: Response of the resolved planetary wave activity and amplitude to turned off gravity waves in the UA-ICON general circulation model, J. Atmos. Sol.-Terr. Phys., 241, 105967, https://doi.org/10.1016/j.jastp.2022.105967.
Riebold, J., Andy Richling, Uwe Ullbrich, Henning Rust, Tido Semmler, Handorf, D., 2022: On the linkage between future Arctic sea ice retreat, Euro-Atlantic circulation regimes and temperature extremes over Europe. EGUsphere , https://doi.org/10.5194/egusphere-2022-953, [preprint].
Schneider, T., C. Lüpkes, W. Dorn, D. Chechin, D. Handorf, S. Khosravi, V.M. Gryanik, I. Makhotina, and A. Rinke, 2022: Sensitivity to changes in the surface-layer turbulence parameterization for stable conditions in winter: A case study with a regional model over the Arctic, Atm. Sci. Lett., 23, e1066, https://doi.org/10.1002/asl.1066
2021
A. Rinke, J. J. Cassano, E. N. Cassano, R. Jaiser, D. Handorf, 2021; Meteorological conditions during the MOSAiC expedition: Normal or anomalous?. Elementa-Sci. Anthrop. 9 (1): 00023. doi: https://doi.org/10.1525/elementa.2021.00023
Kretzschmar, J., 2021: Improving the representation of Arctic clouds in atmospheric models across scales using observations, Dissertation, Universität Leipzig, https://nbn-resolving.org/urn:nbn:de:bsz:15-qucosa2-752400.
Köhler, R., D. Handorf, Ralf Jaiser, Klaus Dethloff, Günther Zängl, Detlev Majewski, Markus Rex, 2021: Improved Circulation in the Northern Hemisphere by Adjusting Gravity Wave Drag Parameterizations in Seasonal Experiments With ICON-NWP, Earth and Space Sci., 8, e2021EA001676, https://doi.org/10.1029/2021EA001676.
Mewes, D., 2021: Large-scale Horizontal Energy Fluxes into the Arctic Analyzed Using Self-organizing Maps, Dissertation, Universität Leipzig, https://nbn-resolving.org/urn:nbn:de:bsz:15-qucosa2-751794.
Wendisch, M., D. Handorf, I. Tegen, R. A. J. Neggers, and G. Spreen, 2021, Glimpsing the ins and outs of the Arctic atmospheric cauldron, Eos, 102, https://doi.org/10.1029/2021EO155959. Published on 16 March 2021.
2020
D. Mewes and C. Jacobi, 2020: Horizontal Temperature Fluxes in the Arctic in CMIP5 Model Results Analyzed with Self-Organizing Maps, Atmosphere, vol. 11, no. 3, doi: 10.3390/atmos11030251.
J. Cohen, X. Zhang, J. Francis, T. Jung, R. Kwok, J. Overland, T. Ballinger, U.S. Bhatt, H. W. Chen, D. Coumou, S. Feldstein, D. Handorf, G. Henderson, M. Ionita, M. Kretschmer, F. Laliberte, S. Lee, H. W. Linderholm, W. Maslowski, Y. Peings, K. Pfeiffer, I. Rigor, T. Semmler, J. Stroeve, P.C. Taylor, S. Vavrus, T. Vihma, S. Wang, M. Wendisch, Y. Wu, J. Yoon, 2020: Divergent consensuses on Arctic amplification influence on midlatitude severe winter weather. Nat. Clim. Chang. 10, 20–29, doi:10.1038/s41558-019-0662-y. https://www.nature.com/articles/s41558-019-0662-y
2019
Dethloff, K., Handorf, D., Jaiser, R. and Rinke, A., 2019, Kältere Winter durch abnehmendes arktisches Meereis. Phys. Unserer Zeit, 50: 290-297. doi:10.1002/piuz.201901547
Vihma, T., R. Graversen, L. Chen, D. Handorf, N. Skific, J.A. Francis, N. Tyrrell, R. Hall, E. Hanna, P. Uotila, K. Dethloff, A.Y. Karpechko, H. Björnsson, J.E. Overland, 2019: Effects of the tropospheric large‐scale circulation on European winter temperatures during the period of amplified Arctic warming, accepted for publication in International Journal of Climatology, doi:10.1002/joc.6225
Rinke, A., E. Knudsen, D. Mewes, W. Dorn, D. Handorf, K. Dethloff, J.C. Moore, 2019: Arctic summer sea-ice melt and related atmospheric conditions in coupled regional climate model simulations, J. Geophys. Res., 124, doi:10.1029/2018JD030207
Romanowsky, E., D. Handorf, M. Rex, R. Jaiser, I. Wohltmann, W. Dorn, J. Ukita, J. Cohen, and K. Dethloff, 2019: The role of stratospheric ozone for Arctic-midlatitude linkages, Nature Scientific Reports, 9, Article 7962, doi:10.1038/s41598-019-43823-1
Mewes, D., and C. Jacobi, 2019: Heat Transport Pathways into the Arctic and their Connections to Surface Air Temperatures, Atmos. Chem. Phys., 19, 3927-3937, doi:10.5194/acp-19-3927-2019
Dethloff, K., D. Handorf, R. Jaiser, A. Rinke, P. Klinghammer, 2019: Dynamical mechanisms of Arctic amplification, Annals of New York Academy of Sciences, 1436, doi:10.1111/nyas.13698
2018
Kreyling, D., Wohltmann, I., Lehmann, R., and Rex, M., 2018: The Extrapolar SWIFT model (version 1.0): Fast stratospheric ozone chemistry for global climate models, Geosci. Model Dev., 11, 753-769, doi:10.5194/gmd-11-753-2018
Jacobi, Ch., T. Ermakova, D. Mewes, and A.I. Pogoreltsev, 2017: El Niño influence on the mesosphere/lower thermosphere circulation at midlatitudes as seen by a VHF meteor radar at Collm (51.3°N, 13°E), Adv. Radio Sci., 15, 199-206, doi:10.5194/ars-15-199-2017
Stober, G., Matthias V. , Jacobi Ch., Wilhelm S., Höffner J., Chau J.L., 2017: Exceptionally strong summer-like zonal wind reversal in the upper mesosphere during winter 2015/16, Ann. Geophys., 35, 711-720, doi:10.5194/angeo-35-711-201
Wendisch, M., M. Brückner, J. P. Burrows, S. Crewell, K. Dethloff, K. Ebell, Ch. Lüpkes, A. Macke, J. Notholt, J. Quaas, A. Rinke, and I. Tegen, 2017: Understanding causes and effects of rapid warming in the Arctic. Eos, 98, doi:10.1029/2017EO064803
Project Poster
Phase II Evaluation poster 2019
Phase I Evaluation poster 2015
