Site Report Korean IPS system at KSWC 2013. 11. 23. Jung-Hoon Kim & Jincheol No (SETsystem, Inc.)

1. Site ReportKorean IPS system at KSWC2013. 11. 23.Jung-Hoon Kim & Jincheol No (SETsystem, Inc.)

2. IPS SYSTEM

3. Korean IPS array is deployed at KSWC in Jeju Island, Korea

4. Korean IPS Array Crossed-dipole Antenna Tile (24 dipoles with reflecting mesh) Node (4 tiles makes 1 node) Whole system

5. System Specification • 32 tiles deployed over 250 x 250 m2 (1tile=24 dipole antennas) • Frequency range : 327 MHz • Instantaneous bandwidth : 10 MHz • Continuum and spectrum modes • Dual polarization • Field of view : ~(1 rad)2 or (10 deg.)2 depending on observation mode • Beam size (angular resolution) : ~15’ • Effective collecting area : ~ 700 m2 • Receiver temperature : ~100 K • Point source sensitivity : 10 mJy @ 100 seconds integration • Time resolution : 1ms or less • Observing modes • Phased array mode for solar wind monitoring • Interferometer mode for radio sky imaging • Both modes for variable objects

6. Tile (Antenna + Reflector) Reflecting plane can be rotated along N-S direction to increase the sky coverage

7. System Diagram Control/ Processing Tile Antenna Node

8. Staffs for Model run • Total 8 staffs working for ENLIL and IPS model run (4 operators designated to model running and forecasting) ENLIL and IPS model run / forecast Forecasting Division Model Operator Lee, J.H. Kwon, H.J. Park, S.R. Yun, J.H.

9. IPS MODEL

10. History

11. IPSinternational collaboration • International collaboration with IPS model (UCSD) and observational data US IPS model • IPSdata • Solar wind/CME research • MOU (2012.08) • Model implementation India (Ooty) Korea (KSWC) • Data and researchcollaboration • Model and Data • MOU (2012.12) • Data and research collaboration Mexico (MEXART) Japan (STELAB)

12. KSWC IPSSystem layout - Use ACE solar wind data, IPS observation, NSO magnetogram for model run -IPS Observational data are from Japan, Korea, India and Mexico KSWC IPS model Basic Data Web Scripts for data acquisition ACE Level 0 (NOAA FTP) Data dir. IPS Data (KSWC, Nagoya,) IPSmodel run Web visualization Image generation IDL,Fortran NSO 자기장 데이터 Output image * From UCSD ftp

13. H/W specification

14. S/W configuration

15. KSWC IPS model output • Run the IPS model everyday at 02:00 UT (11:00 KST) Enlarge with animation

16. RECENT WORKS WITH MODELS

17. IPS model • Model run test with hybrid data (Nagoya + KSWC) • StandardIPS input data format for model run (Japan, Korea) STELAB data STELAB + KSWC data KSWC format 20130513065700 0 58.01139 126.295639 1.10979962484 0.0 0.0 0.0 1.01039958 338.3592562 338.3592562 --- 0.0 8.0 20130513 18.3945441966 0.0 ---- 13.5 -0.04178885858 -0.0422301012404 2251p16 5.11589532755 5.11630763006 1 20130513073934 IPS_JEJU -24.951171875 512 58.8 20130513065700 512 24.853515625 Japan STELAB format 1759+13 130102 2.09 0.61 50 16 45 334 2132 -999-999 1.05766 17 59 22 +13 51 17 18 01 39 +13 51 19 1819-096 130102 2.44 0.25 65 53 58 7 2131 -999-999 1.33069 18 19 44 -09 40 29 18 22 29 -09 38 57 Make a standard format from each IPS telescope and use as model input

18. Compare the result of ENLIL & IPS • Synchronize the model output results and compare two models • 7 days (-2/+5) prediction results, 6 hours cadence

19. Comparison results of ENLIL, IPS, ACE • Color lines represent that only one model predicts the CME • This results shows that each models have their own advantage : ENLELonly case, : IPSonly case

20. Summary • KSWC have been operating two solar wind prediction models from 2013

21. Summary • Korean IPS system • For operational purpose • Owned by KSWC which is government agency • Maintained by SETsystem, Inc. which is system developer and contractor for operation • To do • Data quality check, single site obs. use model fitting technique • Combine of the ENLIL and IPS model