Deutscher Wetterdienst is a federal institution with a strong business area of research. The department for Numerical Weather Prediction (NWP) has about 100 scientists in house in four divisions (49 permanent). There are 7 leading scientists directly reporting to the NWP department head and/or head of research, including the four division heads. All other scientists report to the four division heads in my department:

• FE11 Division Head on Data Assimilation and Predictability
• FE12 Division Head on Observations Modeling and Verification
• FE13 Division Head on Numerical Modeling
• FE14 Division Head on Physical Parametrization and Dispersion Modeling
• Hans-Ertel Center (HErZ) DWD-Theme-Co-Leader Reanalysis
• Hans-Ertel Center (HErZ) DWD-Theme-Co-Leader Data assimilation
• Hans-Ertel Center (HErZ) DWD-Theme-Co-Leader Modelling & Parametrization

Also, there are several PhD students in my group and currently two master students.

We have regular meetings within NWP:

• Division Heads (once to twice per month)
• Division Member Meeting (once to twice per month or weekly)
• Routine Meeting Coordination (every Tuesday 9-10am)
• Group meetings, e.g. of the DA-Algorithm Group, RADAR Group, Satellite Group, Ensemble Group, …

and for coordinating development and operations of NWP within DWD:

• KG NWV (coordination group numerical weather prediction) led by head of NWP

Our development is taking place in a network of partners including

• the Max-Planck-Institute (MPI-M),
• the German Climate Computing Centre (DKRZ),
• Deutscher Wetterdienst
• the Karlsruhe Institute of Technology (KIT),
• the COSMO Consortium for Small Scale Modelling with the weather services of Switzerland, Germany, Italy, Romania, Greece, Russia, Poland, Israel.
• the climate center C2SM in Switzerland
• the Hans-Ertel-Centre (HErZ) in Munich, Bonn/Cologne, Frankfurt, Hamburg and Berlin
• German Research Center for Geosciences (GfZ) Potsdam
• Many further Universities …

We have an intensive interaction with these institutions and many scientists in different steering groups, working groups and committees. There are international and national coordination groups:

• COSMO Steering Committee (COSMO-STC) (2-3 times a year)
• ICON-D5 Directors Group (with C5 participating) (every 3 months)
• ICON-C5 Coordination Group (every two weeks)
• ICON-Seamless Coordination Group (4-6 weeks)

ICON-Seamless Working Group Meetings

• Atmosphere,
• Atmosphere-Land,
• Atmosphere-Ocean,
• Data Assimilation

ICON-Consolidated Meetings

We run yearly workshops and training:

• ICCARUS (ICON/COSMO/CLM/ART User Seminar) in March
• COSMO General Meeting (COSMO-GM) in September
• ICON Training Course in the fourth quarter of the year

as well as further workshops and symposia in cooperationwith partners, e.g. the

• International Symposium on Data Assimilation (ISDA)