DOI: 10.3724/SP.J.1085.2013.00069

Advances in Polar Science 2013/24:1 PP.69-77

An integrated analysis platform merging SuperDARN data within the THEMIS tool developed by ERG-Science Center (ERG-SC)

The Energization and Radiation in Geospace (ERG) mission seeks to explore the dynamics of the radiation belts in the Earth’s inner magnetosphere with a space-borne probe (ERG satellite) in coordination with related ground observations and simu-lations/modeling studies. For this mission, the Science Center of the ERG project (ERG-SC) will provide a useful data analysis platform based on the THEMIS Data Analysis software Suite (TDAS), which has been widely used by researchers in many con-junction studies of the Time History of Events and Macroscale Interactions during Substorms (THEMIS) spacecraft and ground data. To import SuperDARN data to this highly useful platform, ERG-SC, in close collaboration with SuperDARN groups, devel-oped the Common Data Format (CDF) design suitable for fitacf data and has prepared an open database of SuperDARN data ar-chived in CDF. ERG-SC has also been developing programs written in Interactive Data Language (IDL) to load fitacf CDF files and to generate various kinds of plots−not only range-time-intensity-type plots but also two-dimensional map plots that can be superposed with other data, such as all-sky images of THEMIS-GBO and orbital footprints of various satellites. The CDF-TDAS scheme developed by ERG-SC will make it easier for researchers who are not familiar with SuperDARN data to access and ana-lyze SuperDARN data and thereby facilitate collaborative studies with satellite data, such as the inner magnetosphere data pro-vided by the ERG (Japan)−RBSP (USA)−THEMIS (USA) fleet.

Key words:ERG Science Center, SuperDARN, database, data analysis software, THEMIS, Common Data Format

ReleaseDate:2014-07-21 16:59:22

1 Shiokawa K, Seki K, Miyoshi Y, et al. ERG-A small-satellite mission to investigate dynamics of the inner magnetosphere. Adv Space Res, 2006, 38(8): 1861-1869.

2 Miyoshi Y, Ono T, Takashima T, et al. The Energization and Radiation in Geospace (ERG) Project, Dynamics of the Earth's Radiation Belts and Inner Magnetosphere. AGU Monogr Ser, Washington, D. C.: AGU, 2012 (in press).

3 Greenwald R A, Baker K B, Dudeney J R, et al. DARN/SuperDARN: A global view of the dynamics of high-lattitude convection. Space Sci Rev, 1995, 71(1-4): 761-796.

4 Ebihara Y, Nishitani N, Kikuchi T, et al. Two-dimensional observations of overshielding during a magnetic storm by the Super Dual Auroral Radar Network (SuperDARN) Hokkaido radar. J Geophys Res, 2008, 113, A01213.

5 Cousins E D P, Shepherd S G. A dynamical model of high-latitude convection derived from SuperDARN plasma drift measurements. J Geophys Res, 2010, 115, A12329.

6 Chisham G, Lester M, Milan S E, et al. A decade of the Super Dual Auroral Radar Network (SuperDARN): Scientific achievements, new techniques and future directions. Surv Geophys, 2007, 28(1): 33-109.

7 Ponomarenko P V, Menk F W, Waters C L. Visualization of ULF waves in SuperDARN data. Geophys Res Lett, 2003, 30(18): 1926.

8 Sakaguchi K, Nagatsuma T, Ogawa T, et al. Ionospheric Pc5 plasma oscillations observed by the King Salmon HF radar and their comparison with geomagnetic pulsations on the ground and in geostationary orbit. J Geophys Res, 2012, 117(A3): A03218.

9 Elkington S R, Hudson M K, Chan A A. Resonant acceleration and diffusion of outer zone electrons in an asymmetric geomagnetic field. J Geophys Res, 2003, 108(A3): 1116.

10 Ukhorskiy A Y, Takahashi K, Anderson B J. Impact of toroidal ULF waves on the outer radiation belt electrons. J Geophys Res, 2005, 110, A10202.

11 Claussen L B N, Baker J B H, Ruohoniemi J M, et al. Large-scale observations of a subauroral polarization stream by midlatitude SuperDARN radars: Instantaneous longitudinal velocity variations. J Geophys Res, 2012, 117, A05306.

12 Ebihara Y, Nishitani N, Kikuchi T, et al. Dynamical property of storm time subauroral rapid flows as a manifestation of complex structures of the plasma pressure in the inner magnetosphere. J Geophys Res, 2009, 114, A01306.

13 Angelopoulos V. The THEMIS mission. Space Sci Rev, 2008, 141(1-4): 5-34.

14 Yumoto K. The 210° Magnetic Observation Group. The STEP 210 magnetic meridian network project. J Geomagn Geoelectr, 1996, 48(11): 1297-1309.

15 Sato N, Saemundsson T. Conjugacy of electron auroras observed by allsky cameras and scanning photometers. Mem Natl Inst of Polar Res, 1987, 48(S1): 58-71.

16 Yamamoto M, Ozaki M, Yamagishi H, et al. Upper Atmosphere Physics data obtained at Syowa Station in 2006. JARE data reports, Upper Atmosphere Physics, 2008, 26: 1-59.

17 Shiokawa K, Nomura R, Sakaguchi K, et al. The STEL induction magne-tometer network for observation of high-frequency geomagnetic pulsations. Earth Planets Space, 2010, 62(6): 517-524.

18 Hayashi H, Koyama Y, Hori T, et al. Inter-university Upper atmosphere Global Observation NETwork (IUGONET). Data Science Journal, 2012 (in press).

19 Ukhorskiy A Y, Mauk B H, Fox N J, et al. Radiation belt storm probes: Resolving fundamental physics with practical consequences. J Atm Solar-Terr Phys, 2011, 73(11-12): 1417-1424.