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The Community Coordinated Modeling Center: A Brief Overview

The Community Coordinated Modeling Center: A Brief Overview. Lika Guhathakurta. http://ccmc.gsfc.nasa.gov. NASA Goddard Space Flight Center. “ A US multi-agency partnership to enable, support, and perform the research and development for next generation space science and space weather models”.

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The Community Coordinated Modeling Center: A Brief Overview

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  1. The Community Coordinated Modeling Center: A Brief Overview Lika Guhathakurta http://ccmc.gsfc.nasa.gov NASA Goddard Space Flight Center

  2. “A US multi-agency partnership to enable, support, and perform the research and development for next generation space science and space weather models”

  3. CCMC Goals CCMC Support Model Transition to Operations Facilitate Community Research DoD and NOAA Space Weather needs International Research Community

  4. CCMC Functions: Research Support Goals: - One stop shopping for modern space science models - Easy access to modern models for non-experts - Simple-to-use, unified interfaces - Advanced, tailored visualization tools - Continuous improvements through user feedback

  5. Service • Through www-accessible run results • Through runs on request (>1000 now), • - magnetospheric models • - ionospheric models • - heliospheric models • - solar models • No cost to (international) user A. Chulaki, L. Rastaetter, M. Goldfarb

  6. Solar Models • Potential Field Source Surface (Luhmann, UCB) - Global solar magnetic field structure Density, flows • MAS (Linker et al – SAIC) – Global solar magnetic field and plasma structure P. MacNeice, L. Rastaetter

  7. Solar/Heliospheric Models WSA (Wang-Sheeley-Arge) – PFSS corona + ‘potential’ current sheet + empirical kinematic solar wind

  8. Heliospheric Models • ENLIL (Odstrcil – NOAA) – 3D MHD model of inner heliosphere ( 30rs – 10AU) . • Heliospheric Tomography (Jackson,Hick – UCSD)– Constructs global mass and velocity distribution from a simple kinematic model and assimilation of radio scintillation data. • Exospheric Solar Wind Model (Lamy/Pierrard) – 1D kinetic model of solar wind solution along a coronal hole fieldline.

  9. Testing : Sun to Earth Running in realtime, collab. With CISM P. MacNeice, L. Rastaetter Photospheric Synoptic magnetograms WSA – potential field + equatorial current sheet model (1-21.5rs) ENLIL - 3D MHD Heliosphere (21.5rs – 1,2 or 10AU)

  10. Magnetospheric Element CCMC_CCMC_031307_SH_1.isosurface.mp4

  11. Magnetospheric Models • BATSRUS (UMich) – 3D global MHD models of magnetosphere • Fok kinetic Ring Current and Radiation Belt Models ( 2RE – 6RE) . also executing in real time

  12. Magnetospheric Models OpenGGCM MHD model J. Raeder collaboration LFM MHD model CMIT 1.0 CISM collaboration science quality resolution

  13. Ionospheric Models NmF2 ne • Electrodynamic (MHD ionospheric modules) • Empirical (Weimer statistical) • SAMI 2 meridional ionosheric (Huba, NRL) • CTIP global ionospheric (Fuller-Rowell et al, NOAA) M. Kuznetsova, L. Rastaetter

  14. Runs-On-Request System Usage (as of Aug 2006) cumulative run execution Executed runs: Solar & Heliosphere : 128 Global magnetosphere: 607 Inner magnetosphere: 97 Ionosphere: 166 Total: 998 runs Now > 1300!

  15. CCMC Functions: Transition to Ops Decision makers and operational agencies need model evaluations - Science-based validation: Compare model output to measurements for select events, detailed analysis - Metrics studies: Repeatable comparison between model output and measurements, “one number” Need to be blind studies, performed by independent agent

  16. V&V: Software Predicting MeV Electron Intensity Evaluated model: • Software predicting MeV electron intensity at the geostationary orbit • Developed at: APL/UPOS • Input: real-time ACE data • Output: polar cap potential • Considered for operations at AFWA • Quiet vs stormy period

  17. V&V: ENLIL Model Preliminary Evaluation Velocity Density Temperature Magnetic Field Plots of ENLIL output (blue line) vs real-time ACE data (red)

  18. Future Activities: Research Support • Support the generation of advanced space science models • Collaborate with related activities (CISM, CSEM…) • Expand strong service to (international) research community • Execute runs-on-request • Provide ready access to model output with enhanced tools • Includes mission support, e.g., STEREO, THEMIS • Includes campaign support, e.g., IHY • Interested in international partnering • Expand model base, e.g., • UCB ANMHD model • DeVore ARMS • DeForest Fluxon model • Nonlinear force-free model • Serve models developed under LWS and NASA/NSF partnership • Driven by user feedback

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