E02: Ny-Ålesund column thermodynamic structure, clouds, aerosols, trace gases and radiative effects
The overarching goal of this project is to investigate the thermodynamic structure, clouds, aerosols, trace gases and radiative effects in the atmospheric column over Ny–Ålesund, Svalbard, located in the North Atlantic atmospheric transport gateway to the Arctic. As found in the first phase, the synoptic low towards Ny–Ålesund respresents typical Arctic climate during the summer months, while during the winter period large scale advection from lower latitudes is dominating in recent decades, resulting in a more maritime climate. The contribution of this North Atlantic Arctic regime to the overall Arctic amplification by the advection of warm and moist air masses, trace gases, aerosols, and the corresponding effects of clouds and radiation are the main topic in phase II. Building on the implemented cloud observing capabilities by cloud radar and the improved and extended ability to retrieve trace gases, water vapour and cloud information by Fourier Transform Infrared (FTIR) spectroscopy and microwave (MW) radiometry, the focus of the second phase will be the comprehensive long-term analysis of the various operational data sets of the Ny–Ålesund column with respect to the surrounding Arctic environment on different spatial scales. Emphasis will be put on the modification of the radiative properties of the atmospheric column by sea ice, ocean, and land surface characteristics, but also due to changes in circulation patterns and atmospheric pathways. Reaching out from the local to the regional and pan-Arctic scale by including the MOSAiC (central Arctic) and COMBLE (Andenes and Bear Island, Norway) campaign sites as well as other observational supersites, e.g. Barrow (Alaska), Summit (Greenland), and Eureka (Canada), we will address the advective connection between the North Atlantic and the central Arctic and the variability of clouds across Arctic supersites. Within (AC)³ the Ny–Ålesund atmospheric column provides a cornerstone linking campaign activities, satellite observations, process studies, and modelling efforts to long-term ground-based observations. E02 coordinates the (AC)³ crosscutting activity (CCA2)
Ny–Ålesund, located in the warmest part of the Arctic, exhibits distinct dynamic and radiative effects that are indicative for the transition from polar to maritime climate.
In order to test the hypothesis, we will address the following central questions:
- How is the Ny–Ålesund atmospheric column affected by sea ice, ocean and other environmental parameters?
- How do circulation patterns and atmospheric transport pathways modify the radiative properties of the atmospheric column on various temporal and spatial scales?
Achievements phase I
E02 achieved an update of retrieval software for high resolution Fourier Transfrom Infrared (FTIR) spectrometer measurements (new and extended spectroscopy, trace gases and clouds in emission), in particular improving the retrieval of H2O and isotopes of water vapour. Improved retrievals of temperature, humidity, and Liquid Water Path (LWP) were also performed. Cloud macrophysical and microphysical retrievals for Ny–Ålesund data, based on new cloud radar observations at the AWIPEV atmospheric observatory, were analysed (Nomokonova et al., 2019b; Maturilli and Ebell, 2018). Furthermore, a detailed analysis of a one-year data set of vertically resolved cloud properties was performed, and the retrievals of aerosol microphysical properties were used to estimate the radiative impact of a biomass burning event (Ritter et al., 2018). Also, a first assessment of the cloud radiative efect at Ny-Ålesund in combination with a broadband radiative transfer model, and a quantification of atmospheric advective contribution to warming in the North Atlantic region of the Arctic were achieved (Dahlke and Maturilli, 2017).
Role within (AC)³
Dr. Marion Maturilli
Alfred-Wegener-Institute Helmholtz Center for Polar and Marine Research (AWI)
Dr. Kerstin Ebell
University of Cologne
Institute for Geophysics and Meteorology (IGM)
Prof. Dr. Justus Notholt
University of Bremen
Institute of Environmental Physics (IUP)
Nomokonova, T., Ebell, K., Löhnert, U., Maturilli, M., and Ritter, C., 2020: The influence of water vapor anomalies on clouds and their radiative effect at Ny-Ålesund, Atmos. Chem. Phys., 20, 5157–5173, https://doi.org/10.5194/acp-20-5157-2020.
Dahlke, S., Hughes, N.E., Wagner, P.M., Gerland, S., Wawrzyniak, T., Ivanov, B., Maturilli, M., 2020. The observed recent surface air temperature development across Svalbard and concurring footprints in local sea ice cover. Int J Climatol, 1–20. https://doi.org/10.1002/joc.6517
Schemann, V. and K. Ebell, 2020: Simulations of mixed-phase clouds with the ICON-LEM in the complex Arctic environment around Ny–Ålesund, Atmos. Chem. Phys., 20, 475–485, https://doi.org/10.5194/acp-20-475-2020
Ebell, K., T. Nomokonova, M. Maturilli, C. Ritter, 2020: Radiative effect of clouds at Ny-Ålesund, Svalbard, as inferred from ground-based remote sensing observations, J. Appl. Meteorol. Climatol., 59, 3-22, doi:10.1175/JAMC-D-19-0080.1
Wendisch, M., A. Macke, A. Ehrlich, C. Lüpkes, M. Mech, D. Chechin, K. Dethloff, C. Barrientos, H. Bozem, M. Brückner, H.-C. Clemen, S. Crewell, T. Donth, R. Dupuy, C. Dusny, K. Ebell, U. Egerer, R. Engelmann, C. Engler, O. Eppers, M. Gehrmann, X. Gong, M. Gottschalk, C. Gourbeyre, H. Griesche, J. Hartmann, M. Hartmann, B. Heinold, A. Herber, H. Herrmann, G. Heygster, P. Hoor, S. Jafariserajehlou, E. Jäkel, E. Järvinen, O. Jourdan, U. Kästner, S. Kecorius, E.M. Knudsen, F. Köllner, J. Kretzschmar, L. Lelli, D. Leroy, M. Maturilli, L. Mei, S. Mertes, G. Mioche, R. Neuber, M. Nicolaus, T. Nomokonova, J. Notholt, M. Palm, M. van Pinxteren, J. Quaas, P. Richter, E. Ruiz-Donoso, M. Schäfer, K. Schmieder, M. Schnaiter, J. Schneider, A. Schwarzenböck, P. Seifert, M.D. Shupe, H. Siebert, G. Spreen, J. Stapf, F. Stratmann, T. Vogl, A. Welti, H. Wex, A. Wiedensohler, M. Zanatta, S. Zeppenfeld, 2019: The Arctic Cloud Puzzle: Using ACLOUD/PASCAL Multi-Platform Observations to Unravel the Role of Clouds and Aerosol Particles in Arctic Amplification, Bull. Amer. Meteor. Soc., 100 (5), 841–871, doi:10.1175/BAMS-D-18-0072.1
Dahlke, S., 2019: Rapid climate changes in the arctic region of Svalbard, PhD Thesis, University of Potsdam, https://publishup.uni-potsdam.de/frontdoor/index/index/docId/44554
M. Vassel, L. Ickes, M. Maturilli, and C. Hoose, 2019: Classification of Arctic multilayer clouds using radiosonde and radar data in Svalbard, Atmos. Chem. Phys., 19, 5111–5126, doi:10.5194/acp-19-5111-2019
Nomokonova, T., K. Ebell, U. Löhnert, M. Maturilli, C. Ritter, and E. O’Connor, 2019: Statistics on clouds and their relation to thermodynamic conditions at Ny-Ålesund using ground-based sensor synergy, Atmos. Chem. Phys., 19, 4105-4126, doi:10.5194/acp-19-4105-2019
Kulla, B. S., 2018: Die Strahlungsbilanz in der Polarnacht: Einflussfaktoren auf die langwellige Netto-Strahlung bei klarer Atmosphäre, Master Thesis, Institut für Geographie, Universität Augsburg
Knudsen, E.M., B. Heinold, S. Dahlke, H. Bozem, S. Crewell, I. V. Gorodetskaya, G. Heygster, D. Kunkel, M. Maturilli, M. Mech, C. Viceto, A. Rinke, H. Schmithüsen, A. Ehrlich, A. Macke, C. Lüpkes, M. Wendisch, 2018: Meteorological conditions during the ACLOUD/PASCAL field campaign near Svalbard in early summer 2017, Atmos. Chem. Phys., 18, 17995-18022, doi:10.5194/acp-18-17995-2018
Ritter, C., M. Angeles Burgos, C. Böckmann, D. Mateos, J. Lisok, K.M. Markowicz, B. Moroni, D. Cappelletti, R. Udisti, M. Maturilli, and R. Neuber, 2018: Microphysical properties and radiative impact of an intense biomass burning aerosol event measured over Ny-Ålesund, Spitsbergen in July 2015, Tellus B, 70:1, 1-24, doi:10.1080/16000889.2018.1539618
Jentzsch, K., 2018: Strahlungseffekt von Wolken in Ny Ålesund anhand von Fallstudien, Bachelor Thesis, Institut für Geophysik und Meteorologie der Universität zu Köln.
Dekhtyareva, A., K. Holmén, M. Maturilli, O. Hermansend and R. Graversen, 2018: Effect of seasonal mesoscale and microscale meteorological conditions in Ny-Ålesund on results of monitoring of long-range transported pollution, Polar Research, 37, 1508196, doi:10.1080/17518369.2018.1508196
Maturilli, M, and K. Ebell, 2018: Twenty-five years of cloud base height measurements by ceilometer in Ny-Ålesund, Svalbard, Earth Syst. Sci. Data, 10, 1451-1456, doi:10.5194/essd-10-1451-2018
Sato, K., J. Inoue, A. Yamazaki, J.-H. Kim, A. Makshtas, V. Kustov, M. Maturilli, and K. Dethloff , 2018: Impact on predictability of tropical and mid-latitude cyclones by extra Arctic observations, Nature Scientific Reports, 8, 12104, doi:10.1038/s41598-018-30594-4
Schranz, F., S. Fernandez, N. Kämpfer, and M. Palm, 2018: Diurnal variation in middle-atmospheric ozone observed by ground-based microwave radiometry at Ny-Ålesund over 1 year, Atmos. Chem. Phys., 18, 4113-4130, doi:10.5194/acp-18-4113-2018
Dahlke, S. and Maturilli, M., 2017: Contribution of Atmospheric Advection to the Amplified Winter Warming in the Arctic North Atlantic Region, Adv. Meteorol., 2017, ID 4928620, doi: 10.1155/2017/4928620
Kayser, M., Maturilli, M., Graham, R.M., Hudson, S.R., Rinke, A., Cohen, L., Kim, J.-H., Park, S.j., Moon, W., and Granskog, M.A., 2017: Vertical thermodynamic structure of the troposphere during the Norwegian young sea ICE expedition (N-ICE2015), J. Geophys. Res. Atmos., 122, 10855-10872, doi:10.1002/2016JD02089
Rinke, A., M. Maturilli, R.M. Graham, H. Matthes, D. Handorf, L. Cohen, S.R. Hudson, and J.C. Moore, 2017: Extreme cyclone events in the Arctic: Wintertime variability and trends, Envir. Res. Lett., 12, 094006, doi:10.1088/1748-9326/aa7def
Taquet, N., Meza Hernández, I. Stremme, W., Bezanilla, A., Grutter, M., Campoin, R., Palm, M., and Boulestreix, T., 2017: Contiunous measurements of SiF4 and So2 by thermal emissions spectroscopy: Insight from a 6-month survy at the Popocatépetl volcano, J. Volcanol. Geoth. Res., 341, 255-268, doi:10.1016/j.volgeores.2017.05.009
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
Ebell, K., U. Löhnert, E. Päschke, E. Orlandi, J. H. Schween, and S. Crewell, 2017: A 1-D variational retrieval of temperature, humidity, and liquid cloud properties: performance under idealized and real conditions, J. Geophys. Res. Atmos., 122, 1746-1766, doi:10.1002/2016JD025945