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Working Group: Atmosphere, Ice and Ocean

[Objectives] [Overview] [Meetings] [Documents] [Publications[Members] [Mailing List]

Coordinator

Jennifer Brauch

Wikis AIO and NEMO-Europe

Overall Objective

The main general aim is to improve the representation of the regional ocean and its interaction with the atmosphere in the COSMO-CLM.

State of the art, scientific developments

Regional climate models (RCMs) are tools for dynamical downscaling coarse results from global climate circulation models (CGCMs), which are nowadays mainly coupled atmosphere-ocean models (AOGCMs). Ideally RCMs should be able to determine the regional climate without influence of the CGCMs, except at the lateral boundaries. However, presently this is not the case for COSMO-CLM, since the lower boundary values over sea are taken from the AOGCMs. This has a major impact on the quality of the regional model simulations as shown already for the Baltic Sea. To overcome this problem regional coupled atmosphere-ocean models may be used for climate simulations. Several groups in the CLM-Community are working on the coupling of a regional ocean to COSMO-CLM.

Objectives of participating groups

  • Improve the representation of the ocean and the interaction with the atmosphere in the COSMO-CLM (Goethe University Frankfurt, BiK-F)
  • Better regional representation of North Sea and Baltic Sea in climate simulations (HZG)
  • Simulating polynya processes in the Laptev Sea and the Weddell Sea with a fully coupled A-I-O model (University Trier)
  • Assess the added value of high resolution climatic hindcasts and scenarios for the Mediterranean when using coupled atmosphere-ocean models (IMK-TRO (KIT))
  • To get a better accuracy, since in the CIRA simulations the lower boundary values over sea are taken from the global coupled model CMCC-MED. A better regional representation of the Mediterranean Sea is also important in order to increase the accuracy also for climate simulations of the Alpine space (CIRA)
  • Carry out simulations over the Southern Ocean to investigate seasonal simulations covering the confluence region of the Brazil and Malvinas currents, where many oceanic eddies occur (C2SM-ETHZ). Thereby two major questions are addressed:
    - What is the impact of the highly resolved SST on fluxes between the atmosphere and the ocean and on the lower troposphere? Are highly resolved SSTs required to realistically represent fluxes of heat and freshwater in that region?
    - How are these processes affected by the coupling between the atmosphere and the ocean?

 

Overview

Domains of coupled models over Europe Domains of coupled models over the Arctic AIO Domains 2CORDEX Region 7: East Asia 300px

The red boxes give a rough idea of the domains, however, they do not represent the exact boundaries.

 

Models: Ocean / Ice / RunoffRegionScientistsInstitutionStatus
NEMO / (LIM) / TRIPMediterranean Sea, North Sea / Baltic SeaJennifer Brauch, Bodo Ahrens, Trang van Pham, Naveed AkhtarGoethe University Frankfurt, BiK-F, DWDrunning
TRIM / CICE /North Sea / Baltic SeaHa Hagemann, Burkhardt RockelHZGdevelopment stopped
FESOM / FESOM | CCLM /Arctic, Laptev Sea, SvalbardOliver GutjahrMPI-Mplanned
NEMO?/ (LIM) /(Western) Mediterranean, Northeast AtlanticHendrik Feldmann, Gerd Schädler, Hans-Jürgen PanitzIMK-TRO (KIT)no update available
NEMO / (LIM) /Mediterranean SeaAndreas WillBTU Cottbusplanned
NEMO / (LIM) /Mediterranean Sea

Leone Cavicchia, Antonella Sanna, Silvio Gualdi and Paolo Oddo

CMCCno update available
ROMS / /Southern AtlanticDavid Byrne, Lukas PapritzETHZno update available
MOM / SIS /ERGOMBaltic SeaMarkus Meier, Claudia FrauenIOWplanned
Ocean model /CORDEX East AsiaDonghyun LeePohang University of Science and Technology, South Koreaplanned

 

Meetings

DateMeeting and LocationDocuments
2017/09/19CLM-Assembly in Graz

 Minutes

2017/03/09ICCARUS in Offenbach

ICON pdf Minutes

ICON pdf Presentations in the WG AIO meeting

2016/09/19CLM-Assembly in Lüneburg

Icon PDF Minutes

2013/08/29CLM-Community Assembly in Zürich

Icon PDF Minutes (You are not authorised to download.) [52 kb]

2013/03/07COSMO/CLM Seminar in Offenbach

Icon PDF Minutes (You are not authorised to download.) [42 kb]

2012/09/17CLM-Community Assembly in LeuvenIcon PDF Minutes (You are not authorised to download.) [52 kb]

Icon PDF Presentation in the WG AIO meeting (You are not authorised to download.) [347 kb]

Icon PDF Plenary presentation of WG AIO (You are not authorised to download.) [155 kb]

2012/03/08COSMO/CLM Seminar in Offenbach

Icon PDF Minutes (You are not authorised to download.) [21 kb]

Icon PDF BiK-F/FUB Brauch (You are not authorised to download.) [6.2 Mb]

Icon PDF HZG Rockel (für Ho) (You are not authorised to download.) [697 Kb]

Icon PDF Trier Gutjahr (für Heinemann) (You are not authorised to download.) [2.6 Mb]

2011/08/30CLM-Community Assembly in Cava de' Tirreni

Icon PDF Minutes (You are not authorised to download.) [27 Kb]

Icon PDF ETHZ Davin (You are not authorised to download.) [211 Kb]

Icon PDF BiK-F/FUB Brauch/Dobler (You are not authorised to download.) [976 Kb]

Icon PDF HZG Ho (You are not authorised to download.) [1.3 Mb]

Icon PDF Presentation of WG AIO (You are not authorised to download.) [161 Kb]

2011/03/03COSMO/CLM Seminar in Langen

Icon PDF Minutes (You are not authorised to download.) [70 Kb]

Icon PDF CIRA_Bucchignani (You are not authorised to download.) [233 Kb]

Icon PDF GUF-BiK-F_Dobler_Brauch (You are not authorised to download.) [3.7 Mb]

Icon PDF UniTrier_Heinemann (You are not authorised to download.) [6.7 Mb]

Icon PDF ZAMG_Anders (You are not authorised to download.) [1.7 Mb]

2010/08/31Startup Meeting in Berlin

Icon PDF Minutes (You are not authorised to download.) [32 Kb]

Icon PDF Presentation of WG AIO (You are not authorised to download.) [560 Kb]

 

Documents

 

2011/08/26 Icon PDF Icon PDF Annual report 2011 (You are not authorised to download.) [79 Kb]

2012/09/13  Icon PDF Annual report 2012 (You are not authorised to download.) [88 kb]

2013/09/17  Icon PDF Annual report 2013 (You are not authorised to download.) [110kb] 

 

Publications

 

Akhtar, N., J. Brauch, B. Ahrens (2017): Climate Modeling over the Mediterranean Sea: Impact of Resolution and Ocean Coupling. Clim. Dyn. DOI 10.1007/s00382-017-3570-8

 

Akhtar, N.J., J. Brauch, A. Dobler, K. Béranger, B. Ahrens (2014): Medicanes in an ocean-athmosphere coupled regional climate model. Nat. Hazards Earth Syst. Sci., 14, 2189-2201, doi:10.5194/nhess-14-2189-2014

 

Byrne, D., M. Münnich, I. Frenger, N. Gruber (2016): Mesoscale atmosphere ocean coupling enhances the transfer of wind energy into the ocean, Nature Communications 7, doi:10.1038/ncomms11867

 

Ho-Hagemann, H., Gröger, M., Rockel, B., Zahn, M., Geyer, B., Meier, M., 2017: Effects of air-sea coupling over the North Sea and the Baltic Sea on simulated summer precipitation over Central Europe, Climate Dynamics,pp 1–26, doi:10.1007/s00382-017-3546-8.

 

Ho-Hagemann, H.T.M., S. Hagemann, B. Rockel (2015): On the role of soil moisture in the generation of heavy rainfall during the Oder flood event in July 1997. Tellus A, 67, 28661. DOI:10.3402/tellusa.v67.28661.

 

Ho-Hagemann H, Rockel B, Kapitza H and Geyer B (2013): COSTRICE-an atmosphere-ocean-sea ice model coupled system using OASIS3, HZG Report (2013-5), 24pp

 

Pham, Trang Van; J. Brauch, B. Früh, B. Ahrens (2017): Simulation of snowbands in the Baltic Sea area with the coupled atmosphere-ocean-ice model COSMO-CLM/NEMO. Met. Z., doi: 10.1127/metz/2016/0775

 

Pham, T.V., J. Brauch, C. Dieterich, B. Früh, B. Ahrens (2014): New coupled atmosphere-ocean-ice system COSMO-CLM/NEMO: On the air temperature sensitivity on the North and Baltic Seas. Oceanologia, 56(2), 167-189, doi:10.5697/oc.56-2.167

 

Rockel, B., J. Brauch, O. Gutjahr, N. Akhtar, H.T.M. Ho-Hagemann (2017): Gekoppelte Modellsysteme: Atmosphäre und Ozean. Promet - Meteorologische Fortbildung, 99, 65-75

 

Ruti P.M., S. Somot, F. Giorgi, C. Dubois, E. Flaounas, A. Obermann, A. Dell'Aquila, G. Pisacane, A. Harzallah, E. Lombardi, B. Ahrens, N. Akhtar, A. Alias, T. Arsouze, R. Aznar, S. Bastin, J. Bartholy, K. Béranger, J. Beuvier, S. Bouffies-Cloché, J. Brauch, W. Cabos, S. Calmanti, J.-C. Calvet, A. Carillo D. Conte, E. Coppola, V. Djurdjevic, P. Drobinski, A. Elizalde-Arellano, M. Gaertner, P. Galàn, C. Gallardo, S. Gualdi, M. Goncalves, O. Jorba, G. Jordà, B. L'Heveder, C. Lebeaupin-Brossier, L. Li, G. Liguori, P. Lionello, D. Maciàs-Moy, P. Nabat, B. Onol, B. Rajkovic, K. Ramage, F. Sevault, G. Sannino, M.V. Struglia, A. Sanna, C. Torma, V. Vervatis (2016): MED-CORDEX initiative for Mediterranean Climate studies. Bull. of the American Meteorological Society, 97(7), 1187-1208, doi: 10.1175/BAMS-D-14-00176.1

 

Will,A., N. Akhtar, J. Brauch, M. Breil, E. Davin, H. T. M. Ho-Hagemann, E. Maisonnave, M. Thürkow, and S. Weiher (2017): The COSMO-CLM 4.8 regional climate model coupled to regional ocean, land surface and global earth system models using OASIS3-MCT: description and performance. Geoscientific Model Development, 10:1549–1586, doi:10.5194/gmd-10-1549-2017

 

Members

Bodo Ahrens, Naveed Akhtar, Jennifer Brauch, Sandra Brunnabend, David Byrne, Manuel Dröse, Hendrik Feldmann, Claudia Frauen, Barbara Früh, Oliver Gutjahr, Ha Hagemann, Günther Heinemann, Astrid Kerkweg,  Svenja Kohnemann, Praveen Kumar, Donghyun Lee, Hans-Jürgen Panitz, Lukas Papritz, Cristina Primo, Burkhardt Rockel, Gerd Schädler, Christoph Stegert, Trang Van Pham, Andreas Will, Rolf Zentek

 

Mailing List

You may join or leave the mailing list through the mailing list server.

= Working group members only; CLM-Community login required

 

Coordinator Alumni List

Bodo Ahrens (2014 - 2016)

Burkhardt Rockel (2010 - 2014)



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