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      KCI등재 SCI SCIE SCOPUS

      Development of a Data-Verified Ionospheric Model with an Ionosonde Network

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      https://www.riss.kr/link?id=A103658763

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      다국어 초록 (Multilingual Abstract)

      As a base model for space weather application, we develop an ionospheric model (SAMI2-CNU) by revising the open source SAMI2 model. The revision includes the photoionization of X-rays in the range below 50 °A and photoelectron impact ionization. As a solar flux input to the model, we utilize the real-time solar extreme ultraviolet (EUV) and X-ray (1 105.0 nm) fluxes of the FISM (flare irradiance spectral model). In order to verify the SAMI2-CNU model, we compare the peak densities of the E and the F2 layers with those from the GIRO (Global Ionospheric Radio Observatory) network for 110 days with the F10.7 range of 70 − 280 in the last solar cycle. The model provides larger values of NmF2 by 30 − 40%, but the NmE values are reasonably close to the ionosonde values. By carrying out a linear correlation analysis between the model and the ionosonde values, we derived scale factors of 0.67 and 0.41 for the photoionization rates in the F2 and the E regions, respectively. With these scale factors, the SAMI2-CNU model allows us to match the ionosonde NmF2 and NmE values within 7% on the average. We also simulated ionospheric changes during eight solar flare events and found averaged 20% and 46% enhancements of NmF2 and NmE, respectively, over the pre-flare values. Although the SAMI2-CNU model has the same problem with matching the NmF2 enhancement as the original SAMI2, it provides reasonable estimates of the NmE increase, as well as reasonable matches of the NmF2 and the NmE values with the ionosonde values. Thus, the SAMI2-CNU model can be used as a physics model in the data-assimilated model that is being developed for the regional ionosphere around the Korea peninsula.
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      As a base model for space weather application, we develop an ionospheric model (SAMI2-CNU) by revising the open source SAMI2 model. The revision includes the photoionization of X-rays in the range below 50 °A and photoelectron impact ionization. As a...

      As a base model for space weather application, we develop an ionospheric model (SAMI2-CNU) by revising the open source SAMI2 model. The revision includes the photoionization of X-rays in the range below 50 °A and photoelectron impact ionization. As a solar flux input to the model, we utilize the real-time solar extreme ultraviolet (EUV) and X-ray (1 105.0 nm) fluxes of the FISM (flare irradiance spectral model). In order to verify the SAMI2-CNU model, we compare the peak densities of the E and the F2 layers with those from the GIRO (Global Ionospheric Radio Observatory) network for 110 days with the F10.7 range of 70 − 280 in the last solar cycle. The model provides larger values of NmF2 by 30 − 40%, but the NmE values are reasonably close to the ionosonde values. By carrying out a linear correlation analysis between the model and the ionosonde values, we derived scale factors of 0.67 and 0.41 for the photoionization rates in the F2 and the E regions, respectively. With these scale factors, the SAMI2-CNU model allows us to match the ionosonde NmF2 and NmE values within 7% on the average. We also simulated ionospheric changes during eight solar flare events and found averaged 20% and 46% enhancements of NmF2 and NmE, respectively, over the pre-flare values. Although the SAMI2-CNU model has the same problem with matching the NmF2 enhancement as the original SAMI2, it provides reasonable estimates of the NmE increase, as well as reasonable matches of the NmF2 and the NmE values with the ionosonde values. Thus, the SAMI2-CNU model can be used as a physics model in the data-assimilated model that is being developed for the regional ionosphere around the Korea peninsula.

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      참고문헌 (Reference)

      1 J. Joly, 66 : 1704-, 1902

      2 P. C. Chamberlin, 5 : S07005-, 2007

      3 R. F. Donnelly, 72 : 5247-, 1967

      4 R. F. Donnelly, 74 : 1873-, 1969

      5 O. K. Garriott, 72 : 6099-, 1967

      6 O. K. Garriott, 8 : 226-, 1969

      7 G. D. Thome, 76 : 6883-, 1971

      8 M. Mendillo, 9 : 197-, 1974

      9 E. L. Afraimovich, 35 : 1417-, 2000

      10 L. A. Leonovich, 20 : 1935-, 2002

      1 J. Joly, 66 : 1704-, 1902

      2 P. C. Chamberlin, 5 : S07005-, 2007

      3 R. F. Donnelly, 72 : 5247-, 1967

      4 R. F. Donnelly, 74 : 1873-, 1969

      5 O. K. Garriott, 72 : 6099-, 1967

      6 O. K. Garriott, 8 : 226-, 1969

      7 G. D. Thome, 76 : 6883-, 1971

      8 M. Mendillo, 9 : 197-, 1974

      9 E. L. Afraimovich, 35 : 1417-, 2000

      10 L. A. Leonovich, 20 : 1935-, 2002

      11 D. H. Zhang, 37 : 1086-, 2002

      12 J. Y. Liu, 109 : A01307-, 2004

      13 D. H. Zhang, 110 : A03307-, 2005

      14 E. L. Afraimovich, 45 : 31-, 2002

      15 J. Y. Liu, 111 : A05308-, 2006

      16 L. A. Leonovich, 50 : 201-, 2010

      17 K. K. Mahajan, 115 : A12330-, 2010

      18 D. P. Drob, 113 : A12304-, 2008

      19 M. H. Rees, 71 : 691-, 1995

      20 J. A. R. Samson, 27 : 887-, 1994

      21 D. T. Decker, 29 : 249-, 1994

      22 S. C. Solomon, 110 : A10306-, 2005

      23 J. A. Fennelly, 51 : 321-, 1992

      24 P. C. Chamberlin, 6 : S05001-, 2008

      25 R. R. Meier, 29 : 1461-, 2002

      26 J. D. Huba, 32 : L15103-, 2005

      27 D. J. Strickland, 112 : A06313-, 2007

      28 J. D. Huba, 105 : 23035-, 2000

      29 J. M. Picone, 107 : A12-, 2002

      30 A. E. Hedin, 58 : 1421-, 1996

      31 D. Bilitza, 4 : A07-, 2014

      32 P. G. Richards, 99 : 8981-, 1994

      33 L. Heroux, 83 : 5305-, 1978

      34 J. Klenzing, 31 : 2147-, 2013

      35 R. W. Schunk, "USU model of the global ionosphere, in STEP Hand Book of Ionospheric Models" Utah State University 153-, 1996

      36 J. K. Hargreaves, "The solar-terrestrial environment" Cambridge University Press 62-, 1992

      37 P. G. Richards, "The field line interhemispheric plasma model, in STEP Hand Book of Ionospheric Models" Utah State University 207-, 1996

      38 R. G. Roble, "The NCAR thermosphere-ionospheremesosphere-electrodynamics general circulation model (TIME-GCM), in STEP Hand Book of Ionospheric Models" Utah State University 281-, 1996

      39 A. P. Mitra, "Ionospheric Effects of Solar Flares" Springer 294-, 1974

      40 R. W. Shunk, "Ionospheres" Cambridge University Press 325-, 2000

      41 D. N. Anderson, "Global Theoretical Ionospheric Model (GTIM), in STEP Hand Book of Ionospheric Models" Utah State University 133-, 1996

      42 G. J. Bailey, "A low-latitude ionosphere plasmasphere model, in STEP Hand Book of Ionospheric Models" Utah State University 173-, 1996

      43 G. J. Bailey, "A low-latitude ionosphere plasmasphere model, in STEP Hand Book of Ionospheric Models" Utah State University 184-, 1996

      44 T. J. Fuller-Rowell, "A coupled thermosphere-ionosphere model(CTIM), in STEP Hand Book of Ionospheric Models" Utah State University 217-, 1996

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      학술지 이력
      연월일 이력구분 이력상세 등재구분
      2023 평가예정 해외DB학술지평가 신청대상 (해외등재 학술지 평가)
      2020-01-01 평가 등재학술지 유지 (해외등재 학술지 평가) KCI등재
      2011-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2009-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2007-01-01 평가 SCI 등재 (등재유지) KCI등재
      2005-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2002-07-01 평가 등재학술지 선정 (등재후보2차) KCI등재
      2000-01-01 평가 등재후보학술지 선정 (신규평가) KCI등재후보
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      기준연도 WOS-KCI 통합IF(2년) KCIF(2년) KCIF(3년)
      2016 0.47 0.15 0.31
      KCIF(4년) KCIF(5년) 중심성지수(3년) 즉시성지수
      0.26 0.2 0.26 0.03
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