.

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 2

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

 

Models: Ocean / Ice / RunoffRegionScientistsInstitutionStatus
NEMO / (LIM) /Mediterranean 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 RockelHZGrunning
FESOM / FESOM | CCLM /Arctic, Laptev Sea, SvalbardOliver GutjahrMPI-Min progress
NEMO?/ (LIM) /(Western) Mediterranean, Northeast AtlanticHendrik Feldmann, Gerd Schädler, Hans-Jürgen PanitzIMK-TRO (KIT)planned
NEMO / (LIM) /Mediterranean SeaAndreas WillBTU Cottbusplanned
NEMO / (LIM) /Mediterranean Sea

Leone Cavicchia, Antonella Sanna, Silvio Gualdi and Paolo Oddo

CMCCstalled?
ROMS / /Southern AtlanticDavid Byrne, Lukas PapritzETHZrunning

 

Meetings

DateMeeting and LocationDocuments
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

 

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, 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

 

Members

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

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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