E02: Ny-Ålesund column thermodynamic structure, clouds, aerosols, radiative effects

PIs: Kerstin Ebell, Marion Maturilli, Justus Notholt

The overarching goal of this project is to characterize the thermodynamic structure, clouds, aerosols, trace gases and radiative effects in the atmospheric column on a long–term basis at the German/Frenchresearch site in Ny–Ålesund/Svalbard, exploiting the synergy of various remote sensing instruments (CONCORD: Continuous characterization of the Ny–Ålesund column and radiative effects from ground–based remote sensing). Thereby, the Ny–Ålesund column will become a valuable piece of the puzzle in the determination of Arctic climatologies from ground–based observations. The data will be used in various ways: for model evaluation and improvement (D01, D02, E01, E03, E04, B05), as a reference for satellite and airborne retrieval algorithms (B01, B02, B03, C01), and to complement in–situ experiments (A02, B03, B06). In order to achieve the long–term column characterization, we will make use of the established routine observations at the research station in Ny–Ålesund as well as from new observation methods and instrumentation that will be installed within (AC)³. Quality and consistency checks will be applied to the measurements in order to provide a comprehensive data set of the various instruments and their uncertainties. On the basis of this high–quality observational data, vertical profiles of the thermodynamic state, clouds, aerosols and trace gas concentrations will be retrieved using integrated profiling approaches. The comprehensive characterization of the Ny–Ålesund column allows then for the analysis of the radiative impact of clouds, aerosols, trace gases (including water vapour and ozone), as well as its variability and accuracy, which is limited by the accuracy of the retrieved atmospheric properties. Finally, the long–term column characteristics at Ny–Ålesund and its variability will be connected to the large–scale and local meteorology. In the context of observations at other Arctic sites (supersites, ship–based and airborne campaigns; A01, B03, B06), the representativeness of the Ny–Ålesund site will be analysed: Climatologically, Ny–Ålesund is located in the warmest part of the Arctic where relatively high tropospheric temperatures are maintained by diabatic heating from the warm ocean.

Hypothesis: Ny—Ålesund, located in the warmest part of the Arctic, exhibits distinct radiative effects by clouds and aerosols and complements the information from other Arctic supersites.

In order to test the hypothesis, we will address the following central questions:

  • To what extent and with which accuracy can we gain insight into the thermodynamic, trace gas, aerosol and cloud macro– and microphysical properties at Ny–Ålesund?
  • What is their impact on the radiation and energy budget throughout the vertical extent from the surface to the lower mesosphere?
  • How representative are the Ny–Ålesund observations across other Arctic sites?

Role within (AC)³

CONCORD obeservations and retrievals

  • as reference and validation data set for satellite and airborne retrieval algorithms (B01, B02, B03, B06)
  • as complement and tie campaign experiments (A01, A02, B03, B06)
matrix_E02

Members

Rumia Basu

PhD

University of Bremen
Institute of Environmental Physics (IUP)
Otto-Hahn-Allee 1
28359 Bremen

phone:

++49 (0) 421 218 62177

e-mail:

rumia_b[at]iup.physik.uni-bremen.de

Dr. Marion Maturilli

Principal Investigator

Alfred-Wegener-Institute Helmholtz Center for Polar and Marine Research (AWI)
Telegrafenberg A43
14473 Potsdam

phone:

++49 (0) 331 288 2109

e-mail:

Marion.Maturilli[at]awi.de

Dr. Kerstin Ebell

Principal Investigator

University of Cologne
Institute for Geophysics and Meteorology (IGM)
Pohligstr. 3
50969 Cologne

phone:

++49 (0) 221 470 6236

e-mail:

Tatiana Nomokonova

PhD

University of Cologne
Institute for Geophysics and Meteorology (IGM)
Pohligstr. 3
50969 Cologne

phone:

++49 (0) 221 470 4859

e-mail:

Dr. Christoph Ritter

Postdoc

Alfred-Wegener-Institute Helmholtz Center for Polar and Marine Research (AWI)
Telegrafenberg A43
14473 Potsdam

phone:

++49 (0) 331 288 2166

e-mail:

Christoph.Ritter[at]awi.de

Sandro Dahlke

PhD

Alfred-Wegener-Institute Helmholtz Center for Polar and Marine Research (AWI)
Telegrafenberg A43
14473 Potsdam

phone:

++49 (0) 331 288 2153

e-mail:

sandro.dahlke[at]awi.de

Dr. Mathias Palm

Postdoc

University of Bremen
Institute of Environmental Physics (IUP)
Otto-Hahn-Allee 1
28334 Bremen

phone:

++49 (0) 421 2186 62179

e-mail:

mathias[at]iup.physik.uni-bremen.de

Prof. Dr. Justus Notholt

Principal Investigator

University of Bremen
Institute of Environmental Physics (IUP)
Otto-Hahn-Allee 1
28334 Bremen

phone:

++49 (0) 421 218 62190

e-mail:

jnotholt[at]iup.physik.uni-bremen.de

Publications

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, 1-19, doi:10.1002/2016JD02089.

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

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., doi:10.1088/1748-9326/aa7def

Barthlott, S., Schneider, M., Hase, F., Blumenstock, T., Kiel, M., Dubravica, D., García, O. E., Sepúlveda, E., Mengistu Tsidu, G., Takele Kenea, S., Grutter, M., Plaza-Medina, E. F., Stremme, W., Strong, K., Weaver, D., Palm, M., Warneke, T., Notholt, J., Mahieu, E., Servais, C., Jones, N., Griffith, D. W. T., Smale, D., and Robinson, J., 2017: Tropospheric water vapour isotopologue data (H216O, H218O, and HD16O) as obtained from NDACC/FTIR solar absorption spectra, Earth Syst. Sci. Data, 9, 15-29, doi:10.5194/essd-9-15-2017.

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, doi:10.1002/2016JD025945.

Project Poster