Integrated Frameworks for Earth and Space Weather Simulation

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Integrated Frameworks for Earth and Space Weather
Simulation
Timothy Killeen and Cecelia DeLuca National
Center for Atmospheric Research, Boulder,
Colorado Tamas Gombosi, Gabor Toth, and Quentin
Stout University of Michigan, Ann Arbor,
Michigan Charles Goodrich Boston University,
Boston, Massachusetts Alan Sussman University of
Maryland, College Park, Maryland Michael
Hesse Goddard Space Flight Center, Greenbelt,
Maryland
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Pilot Projects

• A NSF-funded project combines components from the
  Space Weather Modeling Framework (SWMF) and the
  Earth System Modeling Framework (ESMF) to form a
  composite application
• A NASA-funded project prototypes an interface
  between the InterComm tool used by the Center for
  Integrated Space Weather Modeling (CISM) and the
  ESMF
• Emphasis is on the development of interfaces
  between frameworks and not migration to a single
  framework

The goal is to combine these three frameworks
into an integrated system, in a way that allows
more flexibility in coupling and executing Earth
and space models.
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Collaborators SWMF
Eruptive Event Generator
Solar Corona
Inner Heliosphere
Solar Energetic Particles
Photosphere to Corona
Coming Soon
Global Magnetosphere
Radiation belts
SWMF
Coming Soon
Coming Soon
Inner Magnetosphere
Plasmasphere
Ionosphere Electrodynamics
Polar Wind
Upper Atmosphere

• The SWMF architecture is based on components with
  generic interfaces
• A SWMF application runs as a single executable
• Many different configurations may be run
• The SWMF is freely available at
  http//csem.engin.umich.edu

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Collaborators ESMF
GEOS-5 AGCM Application Example

• Component-based architecture each box
  (including couplers) is an ESMF component
• Every component has a standard interface so that
  it is exchangeable
• Many custom systems (climate, weather, hydrology,
  etc.) can be created
• Framework is freely available at
  http//www.esmf.ucar.edu

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Collaborators InterComm/CISM

• In CISM applications, the InterComm library
  (University of Maryland) is used for data
  transfers between models that are in separate
  executables
• The Overture framework (LLNL) for solving PDEs in
  complex moving geometries is used to write
  coupling code, which may be put in its own
  separate executable or within a subroutine of one
  of the models being coupled
• InterComm and Overture are both general purpose,
  freely downloadable packages

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Collaborators CCMC

• Test frameworks by
• Implementing them on common computational
  architectures
• Executing test problems
• Serving run-on-request to community
• Feedback to framework developers
• Strengths and weakness
• Desirable features
• Support model integration into frameworks
• Following recent requests from framework
  developers
• Following model owner interests
• Report to operational agencies

http//ccmc.gsfc.nasa.gov
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SWMF/ESMF Coupling
Single Executable
ESMF App Driver
ESMF Coupler
ESMF Earth System Component
ESMF SWMF Component
SWMF Driver

• The entire SWMF is wrapped as an ESMF component
• The SWMF component can communicate data to one or
  more Earth system components
• The application is run using an ESMF driver
• The application runs as a single executable

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ESMF/InterComm Coupling
Multiple executables
ESMF App Driver
ESMF Coupler
CISM Model
ESMF Component 1 (e.g. land)
ESMF Component 2 (e.g. atm)
InterComm data transfer and sequencing

• InterComm is used for data transfers between an
  ESMF application and a CISM model
• These are in separate executables
• InterComm is wrapped in ESMF_StatePut() and
  ESMF_StateGet() commands so that it presents a
  standard interface on the ESMF side
• Data transfers can be from anywhere, to anywhere

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Activities, Status, and Time Line

• SWMF/ESMF pilot project started August 2005, will
  complete September 2006
• Completed
• Implemented SWMF as an ESMF component (Toth,
  University of Michigan)
• Designed and implemented a 3D grid representation
  in the ESMF (Oehmke, University of Michigan)
• To do
• Demonstrate coupling of SWMF to ESMF components
  (University of Michigan)
• Design and implement simple 3D regridding in ESMF
  (University of Michigan)
• InterComm/ESMF pilot project will start March
  2006, will complete September 2006
• To do
• Implement ESMF data transfer (put/get) methods
  that utilitize InterComm (University of Maryland)
• Prototype coupling of components using the new
  data transfer capability (University of Maryland)

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More Framework Combinations

• PRISM and ESMF
• PRISM is a European climate framework
• 22 partners leading climate researchers and
  computer vendors, includes MPI, KNMI, UK Met
  Office, CERFACS, ECMWF, DMI
• ESMF and PRISM are working together through a
  NASA grant (PI, Max Suarez) and the World Climate
  Research Program (WCRP) to merge frameworks and
  develop common conventions
• MOM4 ocean model at GFDL was used to demonstrate
  how one model can be instrumented to run in both
  PRISM and ESMF
• Common Component Architecture and ESMF
• CCA is a general high performance computing
  framework that covers many different domains, and
  offers web and Grid service interfaces
• Collaborators include LANL, ANL, LLNL, ORNL, etc.
• ESMF components can be readily adapted to run in
  CCA drivers, demo presented at SC2003
• Possibilities for space frameworks to interface
  to PRISM and CCA components, too

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Summary and Outreach

• Two pilot projects will be completed September
  2006 exploring the integration of ESMF, SWMF, and
  InterComm/CISM
• Activities are open to additional collaborators
• See http//www.esmf.ucar.edu/earth_space_framewor
  ks
• For this presentation and preprint
• Project descriptions
• Project updates