Overview of Overview of ERG / ERG ERG / ERG Science Center 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, 2010ERG-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 [email protected] ERG-science-center [email protected]
1. The 1. The ERGERG project 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
REMOTE SENSING
ERG-satelliteERG-ground networks
ERGERG Project Group Project Group
IN-SITU OBSERVATION
Science Coordination TeamProject Science Center
NUMERICAL SIMULATION/MODELING
ERG-simulation/integrated studies
The The ERGERG satellite satellite
・ apogee altitude : 4.0 Re (L~5) ・ perigee altitude: 300 km・ inclination: 10/31 deg・ planned launch date: ~ FY2013-2015
plasmasphere
ring currentplasma sheet
inner belt outer belt
1 eV
100 keV
1 MeV
Science Instruments of the ERG satellite : plasma & particles
LEP-i
MEP-i
1 keVLEP-e
MEP-e
HEP-e
XEP
10 MeV
PPE: Plasma and Particle Experiment (PI: M. Hirahara)
ion electron
- ERG/ PPE measure widely differing energies over 6 orders with ion mass discrimination.
DC
1 Hz
1 kHz
Science Instruments of the ERG satellite : fields & waves
Whistler(~kHz)
ULF waves(~mHz)
ConvectiveField
PWE
MagneticField
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)
magnetosonicwave
(~100Hz)
100 kHz
・ 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 The ERGERG ground networks (PI: K. Shiokawa) ground networks (PI: K. Shiokawa)
The The ERGERG simulation/integrated studies (PI: K. Seki) 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 interactionand 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 Universitystarts the new modeling/integrated study project : GEMSIS.
micro simulation Katoh and Omura [2007]
Science Coordination Team/Project Science Center 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.
International Collaboration: International Collaboration: international fleet of geospace satellites international fleet of geospace satellites
Launch : 2012
Launch : 2012
US/RBSPUS/RBSP
Canada/ORBITALSCanada/ORBITALS
Japan/Japan/ERGERG
Launch : 2013
US/THEMISUS/THEMIS
International Collaboration: International Collaboration: ground networksground 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
ERG Science Center
ERG Science Center
ERG Science 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)
ERG Science Center
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.
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.
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.