1. Overview of ERG / ERG Science Center 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 March 18-19, 2010 ERG-THEMIS-ORBITALS Potential Use of TDAS 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 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. REMOTE SENSING ERG -satellite ERG -ground networks ERG Project Group IN-SITU OBSERVATION Science Coordination Team Project Science Center NUMERICAL SIMULATION/MODELING ERG -simulation/integrated studies

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

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

7. ・ Magnetometer Network ： MAGDAS/CPMN, Silk-Road, Antarctic Network, ULTIMA ・ Radar Network: SuperDARN network, FM-CW radar - Global convection pattern - ULF pulsation - Electric field penetration - 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 The ERG ground networks (PI: K. Shiokawa)

8. The ERG simulation/integrated studies (PI: K. Seki) ・ simulation/integrated studies global simulation of the radiation belts 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. micro simulation Katoh and Omura [2007]

9. Science Coordination Team/Project Science Center ・ Project Science Center (Lead: K. Seki) ・ Science Coordination Team (Lead: Y. Miyoshi) -Planning and coordination of science program. -Making an arrangement of the international collaborations. - 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/RBSP Canada/ORBITALS Japan/ ERG Launch : 2013 US/THEMIS

11. International Collaboration: ground networks SuperDARN: SuperDARN: world wide HF radar network convective electric fields/MHD pulsations 8 new radars are developed in the sub-auroral latitude by 2012. ULTIMA: ULTIMA: world wide consortium of magnetometer networks THEMIS-GBO: THEMIS-GBO: systematic observations of ASI, magnetometers at auroral and sub-auroral latitudes. CARISMA: CARISMA: magnetometer elements of Canada

12. ERG Science Center

13. 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) ERG Science Center

14. Framework of ERG -SC ERG – Science Center (STELab, Nagoya univ.) Universities, Institute ERG -satellite ERG -ground ERG -modeling Data Server User Integrated Analysis Tool (TDAS) ERG Science Center Universities, Institute ERG project ・ 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 ERG – Science Center (STELab, Nagoya univ.) Universities, Institute ERG -satellite ERG -ground ERG -modeling ERG Science Center Universities, Institute ERG project - 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. FY 2009. 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. ・ 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. ERG Science Center Timeline 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.