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Overview of ERG / ERG Science Center

March 18-19, 2010 ERG-THEMIS-ORBITALS Potential Use of TDAS. Overview of ERG / ERG Science Center. Y. Miyoshi, K. Seki, T. Hori, Y. Miyashita, T. Segawa, Y. Ebihara, T. Takada, K. Shiokawa and ERG-science center task team. OUTLINE: ERG project Framework of ERG-SC

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Overview of ERG / ERG Science Center

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  1. March 18-19, 2010 ERG-THEMIS-ORBITALS Potential Use of TDAS Overview of ERG / ERG Science Center Y. Miyoshi, K. Seki, T. Hori, Y. Miyashita, T. Segawa, Y. Ebihara, T. Takada, K. Shiokawa and ERG-science center task team OUTLINE: ERG project Framework of ERG-SC Current status - an example of user developed TDAS - CDF’lization of SuperDARN radar (Dr. Hori) - CDF’lization of geomag data (Dr. Miyashita) Contact; ERG-project office erg_adm@st4a.stelab.nagoya-u.ac.jp ERG-science-center erg-sc-core@st4a.stelab.nagoya-u.ac.jp

  2. 1. The ERG project project goal – understanding cross-energy couplings for generation and loss process of relativistic particles & variation of geospace during space storms Target 1: Dynamics of the radiation belts particle acceleration, transportation and loss Target 2: Dynamics of the space storms ring current and electro-magnetic field variation associated with M-I coupling Target 3: Dynamics of the plasmasphere

  3. ERG Project Group ERG-satellite ERG-ground networks REMOTE SENSING IN-SITU OBSERVATION ERG-simulation/integrated studies Science Coordination Team Project Science Center NUMERICAL SIMULATION/MODELING

  4. The ERG satellite ・apogee altitude：　4.0 Re (L~5) ・perigee altitude: 300 km ・inclination: 10/31 deg ・planned launch date:～FY2013-2015

  5. Science Instruments of the ERG satellite : plasma & particles PPE: Plasma and Particle Experiment(PI: M. Hirahara) 10 MeV XEP inner belt outer belt HEP-e 1 MeV 100 keV MEP-i MEP-e ring current plasma sheet LEP-i LEP-e 1 keV 1 eV plasmasphere ion electron - ERG/ PPE measure widely differing energies over 6 orders with ion mass discrimination.

  6. Science Instruments of the ERG satellite : fields & waves PWE: Plasma Wave and Electric Field Experiment (PI: Y. Kasaba) MGF: Measurement of Geomagnetic Field (PI: A. Matsuoka) 100 kHz PWE PWE (search coil) 10 kHz Whistler (~kHz) 1 kHz magnetosonic wave (~100Hz) 1 Hz EMIC (~Hz) ULF waves (~mHz) MGF (fluxgate) 1mHz Magnetic Field Convective Field DC magnetic field electric field - ERG/ PWE and MGF measure electric and magnetic field for wide frequency range from DC to MHz.

  7. The ERG ground networks (PI: K. Shiokawa) ・Radar Network:SuperDARN network, FM-CW radar • Global convection pattern • ULF pulsation • Electric field penetration ・Magnetometer Network：MAGDAS/CPMN, Silk-Road, Antarctic Network, ULTIMA • Global magnetic field variation • Remote sensing of ring current • diagnostics of plasmasphere ・Optical Imager Network：Canada, Norway, Siberia, Antarctica • Estimation of ionospheric conductivity • Visualization of magnetospheric • plasma distribution

  8. The ERG simulation/integrated studies (PI: K. Seki) ・simulation/integrated studies Katoh and Omura [2007] global simulation of the radiation belts micro simulation Miyoshi et al. [2006] Comprehensive simulations including both micro wave-particle interaction and macro processes, which can be compared with the observations, are necessary for the ERG project. As one of the activity of the simulation/integrated studies, Nagoya University starts the new modeling/integrated study project : GEMSIS.

  9. Science Coordination Team/Project Science Center ・Science Coordination Team (Lead: Y. Miyoshi) • Planning and coordination of science program. • -Making an arrangement of the international collaborations. ・Project Science Center (Lead: K. Seki) • We are developing of a software package to analyze observations • and modeling based on IDL/TDAS. • Related observation database in commonly used format like CDF • will be implemented.

  10. International Collaboration: international fleet of geospace satellites Launch : 2012 US/THEMIS US/RBSP Launch : 2012 Canada/ORBITALS Launch : 2013 Japan/ERG

  11. International Collaboration: ground networks SuperDARN: world wide HF radar network convective electric fields/MHD pulsations8 new radars are developed in the sub-auroral latitude by 2012. ULTIMA: world wide consortium of magnetometer networks CARISMA: magnetometer elements of Canada THEMIS-GBO: systematic observations of ASI, magnetometers at auroral and sub-auroral latitudes.

  12. ERGScience Center ERGScience Center

  13. ERGScience Center ERGScience Center Task definition * archive of ERG-project data (satellite, ground observations, simulation) and related data. * schedule control for archive and release of Level-2 data * development and release of the data-analysis tool based on TDAS to facilitate integrated analysis of several kinds of data provided from the project . Team member K. Seki (Ld.), Y. Miyoshi (Sci. Mgr), T. Hori (HF-radar Ld.), Y. Miyashita (Geomag Ld.), T. Segawa, Y. Ebihara, K. Shiokawa (PI: ERG-ground nework), N. Nishitani (PI: HOK radar) T. Takada, K. Asamura (Co-I: ERG PPE), Y. Kasaba (PI: ERG PWE), Kumamoto (Co-I: ERG PWE), A. Matsuoka (PI: ERG MGF), M. Nose (Kyoto Univ. WDC), I. Shinohara (JAXA), K. Murata, T. Nagatsuma (NICT), H. Kawano (Kyushu Univ.), A. Yukimatsu, Y. Tanaka (NIPR)

  14. Framework of ERG-SC ERGScience Center ERG project Universities, Institute Universities, Institute ERG-modeling ERG-satellite ERG-ground ERG – Science Center (STELab, Nagoya univ.) Data Server Integrated Analysis Tool (TDAS) User ・The data of ERG-satellite will be archived in JAXA. ・The ERG-science center that archives all kind of project data is installed in STELab and develops the integrated analysis tool based on TDAS.

  15. Collaboration with other projects in Japan ERGScience Center ERG project Universities, Institute Universities, Institute ERG-modeling ERG-satellite ERG-ground ERG – Science Center (STELab, Nagoya univ.) • IUGONET is Inter-university project that • develops the meta-data server of related • ground-based data. • ERG-SC cooperates with the IUGONET to • develop CDF-format, data-analysis tool. • NICT has developed “OneSpaceNet” project • that maintains IT resources such as WS, data • server and networks for the study of geospace. • “OneSpaceNet” is one of candidates for • backbone of IT architecture for ERG-SC.

  16. Timeline ERGScience Center FY 2008. ・discussions with THEMIS, ORBITALS, RBSP, Resonance, KuaFu missions about the possible collaboration for development of data-analysis tool at the ISAS symposium. ・investigation of data analysis tools. The task-team has selected TDAS as a possible data analysis tool for the ERG-project. FY 2009. ・ Development of CDF as well as load procedures for gmag and HF radar has been started. ・ Agreement of cooperation with IUGONET, NICT, etc. ・ The ERG-science center has been selected for a institute project of STELab. FY 2010- (TBD) ・ We have a plan for development of both CDF and load procedures for ASI, VLF, riometer as well as simulation/modeling data for pre-launch effort. ・ Some of data will be opened for public after confirmations by PIs.

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