메뉴 건너뛰기




Volumn 116, Issue 20, 2011, Pages

The fine-scale structure of the global tropopause derived from COSMIC GPS radio occultation measurements

Author keywords

[No Author keywords available]

Indexed keywords

CLIMATOLOGY; COSMOLOGY; GLOBAL POSITIONING SYSTEM; IONOSPHERE; STRUCTURAL PROPERTIES; TROPICS; TROPOSPHERE;

EID: 80055042665     PISSN: 01480227     EISSN: None     Source Type: Journal    
DOI: 10.1029/2011JD016030     Document Type: Article
Times cited : (80)

References (58)
  • 2
    • 0030428332 scopus 로고    scopus 로고
    • Seasonal variation of mass transport across the tropopause
    • Appenzeller, C., J. R. Holton, and K. H. Rosenlof (1996), Seasonal variation of mass transport across the tropopause, J. Geophy. Res., 101(D10), 15,071-15,078.
    • (1996) J. Geophy. Res. , vol.101 , Issue.D10 , pp. 15071-15078
    • Appenzeller, C.1    Holton, J.R.2    Rosenlof, K.H.3
  • 3
    • 33645517857 scopus 로고    scopus 로고
    • Fine-scale structure of the extratropical tropopause region
    • doi:10.1029/2005JD006301
    • Birner, T. (2006), Fine-scale structure of the extratropical tropopause region, J. Geophys. Res., 111, D04104, doi:10.1029/2005JD006301.
    • (2006) J. Geophys. Res. , vol.111
    • Birner, T.1
  • 4
    • 78649918719 scopus 로고    scopus 로고
    • Recent widening of the tropical belt from global tropopause statistics: Sensitivities
    • doi:10.1029/ 2010JD014664
    • Birner, T. (2010a), Recent widening of the tropical belt from global tropopause statistics: Sensitivities, J. Geophys. Res., 115, D23109, doi:10.1029/ 2010JD014664.
    • (2010) J. Geophys. Res. , vol.115
    • Birner, T.1
  • 5
    • 77953714837 scopus 로고    scopus 로고
    • Residual circulation and tropopause structure
    • doi:10.1175/2010JAS3287.1
    • Birner, T. (2010b), Residual circulation and tropopause structure, J. Atmos. Sci., 67, 2582-2600, doi:10.1175/2010JAS3287.1.
    • (2010) J. Atmos. Sci. , vol.67 , pp. 2582-2600
    • Birner, T.1
  • 6
    • 0037101757 scopus 로고    scopus 로고
    • How sharp is the tropopause at midlatitudes?
    • doi:10.1029/ 2002GL015142
    • Birner, T., A. Dörnbrack, and U. Schumann (2002), How sharp is the tropopause at midlatitudes?, Geophys. Res. Lett., 29(14), 1700, doi:10.1029/ 2002GL015142.
    • (2002) Geophys. Res. Lett. , vol.29 , Issue.14 , pp. 1700
    • Birner, T.1    Dörnbrack, A.2    Schumann, U.3
  • 7
    • 33845635547 scopus 로고    scopus 로고
    • The tropopause inversion layer in models and analyses
    • doi:10.1029/ 2006GL026549
    • Birner, T., D. Sankey, and T. G. Shepherd (2006), The tropopause inversion layer in models and analyses, Geophys. Res. Lett., 33, L14804, doi:10.1029/ 2006GL026549.
    • (2006) Geophys. Res. Lett. , vol.33
    • Birner, T.1    Sankey, D.2    Shepherd, T.G.3
  • 8
    • 0035848862 scopus 로고    scopus 로고
    • Removal of chlorofluorocarbons by increased mass exchange between the stratosphere and troposphere in a changing climate
    • DOI 10.1038/35071047
    • Butchart, N., and A. A. Scaife (2001), Removal of chlorofluorocarbons by increased mass exchange between the stratosphere and troposphere in a changing climate, Nature, 410, 799-802. (Pubitemid 32303774)
    • (2001) Nature , vol.410 , Issue.6830 , pp. 799-802
    • Butchart, N.1    Scaife, A.A.2
  • 9
    • 84859944051 scopus 로고    scopus 로고
    • Overview of the integrated global radiosonde archive
    • Durre, I., R. S. Vose, and D. B. Wuertz (2006), Overview of the integrated global radiosonde archive, J. Clim., 19, 53-68.
    • (2006) J. Clim. , vol.19 , pp. 53-68
    • Durre, I.1    Vose, R.S.2    Wuertz, D.B.3
  • 12
    • 77953693690 scopus 로고    scopus 로고
    • A global survey of static stability in the stratosphere and upper troposphere
    • Grise, K. M., D. W. J. Thompson, and T. Birner (2010), A global survey of static stability in the stratosphere and upper troposphere, J. Clim., 23, 2275-2292.
    • (2010) J. Clim. , vol.23 , pp. 2275-2292
    • Grise, K.M.1    Thompson, D.W.J.2    Birner, T.3
  • 13
    • 71949121477 scopus 로고    scopus 로고
    • Assessment of radiosonde temperature measurements in the upper troposphere and lower stratosphere using COSMIC radio occultation data
    • doi:10.1029/2009GL038712
    • He, W., S. Ho, H. Chen, X. Zhou, D. Hunt, and Y.-H. Kuo (2009), Assessment of radiosonde temperature measurements in the upper troposphere and lower stratosphere using COSMIC radio occultation data, Geophys. Res. Lett., 36, L17807, doi:10.1029/2009GL038712.
    • (2009) Geophys. Res. Lett. , vol.36
    • He, W.1    Ho, S.2    Chen, H.3    Zhou, X.4    Hunt, D.5    Kuo, Y.-H.6
  • 14
    • 0020414676 scopus 로고
    • On the height of the tropopause and the static stability of the troposphere
    • Held, I. M. (1982), On the height of the tropopause and the static stability of the troposphere, J. Atmos. Sci., 39, 412-417.
    • (1982) J. Atmos. Sci. , vol.39 , pp. 412-417
    • Held, I.M.1
  • 18
    • 0033067394 scopus 로고    scopus 로고
    • Statistics of the global tropopause pressure
    • Hoinka, K. P. (1998), Statistics of the global tropopause pressure, Mon. Weather Rev., 126(12), 3303-3325. (Pubitemid 128585152)
    • (1998) Monthly Weather Review , vol.126 , Issue.12 , pp. 3303-3325
    • Hoinka, K.P.1
  • 19
    • 0033394345 scopus 로고    scopus 로고
    • Temperature, humidity, and wind at the global tropopause
    • Hoinka, K. P. (1999), Temperature, humidity, and wind at the global tropopause, Mon. Weather Rev., 127, 2248-2265.
    • (1999) Mon. Weather Rev. , vol.127 , pp. 2248-2265
    • Hoinka, K.P.1
  • 21
    • 0029768948 scopus 로고    scopus 로고
    • The NCEP/NCAR 40-year reanalysis project
    • Kalnay, E., et al. (1996), The NCEP/NCAR 40-year reanalysis project, Bull. Am. Meteorol. Soc., 77, 437-472.
    • (1996) Bull. Am. Meteorol. Soc. , vol.77 , pp. 437-472
    • Kalnay, E.1
  • 22
    • 0034127996 scopus 로고    scopus 로고
    • An energy balance model based on potential vorticity homogenization
    • Kirk-Davidoff, D. B., and R. S. Lindzen (2000), An energy balance model based on potential vorticity homogenization, J. Clim., 13, 431-448. (Pubitemid 30195131)
    • (2000) Journal of Climate , vol.13 , Issue.2 , pp. 431-448
    • Kirk-Davidoff, D.B.1    Lindzen, R.S.2
  • 24
    • 71949121369 scopus 로고    scopus 로고
    • High static stability in the mixing layer above the extratropical tropopause
    • doi:10.1029/2009JD011840
    • Kunz, A., P. Konopka, R. Müller, L. L. Pan, C. Schiller, and F. Rohrer (2009), High static stability in the mixing layer above the extratropical tropopause, J. Geophys. Res., 114, D16305, doi:10.1029/2009JD011840.
    • (2009) J. Geophys. Res. , vol.114
    • Kunz, A.1    Konopka, P.2    Müller, R.3    Pan, L.L.4    Schiller, C.5    Rohrer, F.6
  • 26
    • 0001600664 scopus 로고    scopus 로고
    • Description of a complete (interpolated) outgoing longwave radiation dataset
    • Liebmann, B., and C. A. Smith (1996), Description of a complete (interpolated) outgoing longwave radiation dataset, Bull. Am. Meteorol. Soc., 77, 1275-1277.
    • (1996) Bull. Am. Meteorol. Soc. , vol.77 , pp. 1275-1277
    • Liebmann, B.1    Smith, C.A.2
  • 27
    • 0027798905 scopus 로고
    • Baroclinic neutrality and the tropopause
    • Lindzen, R. S. (1993), Baroclinic neutrality and the tropopause, J. Atmos. Sci., 50, 1148-1151. (Pubitemid 24393999)
    • (1993) Journal of the Atmospheric Sciences , vol.50 , Issue.8 , pp. 1148-1151
    • Lindzen, R.S.1
  • 28
    • 34547570562 scopus 로고    scopus 로고
    • Tropopause height and zonal wind response to global warming in the IPCC scenario integrations
    • DOI 10.1029/2006JD008087
    • Lorenz, D. J., and E. T. DeWeaver (2007), Tropopause height and zonal wind response to global warming in the IPCC scenario integrations, J. Geophys. Res., 112, D10119, doi:10.1029/2006JD008087. (Pubitemid 47193621)
    • (2007) Journal of Geophysical Research D: Atmospheres , vol.112 , Issue.10
    • Lorenz, D.J.1    DeWeaver, E.T.2
  • 29
    • 34249907055 scopus 로고    scopus 로고
    • Expansion of the Hadley cell under global warming
    • doi:10.1029/ 2006GL028443
    • Lu, J. A., G. A. Vecchi, and T. Reichler (2007), Expansion of the Hadley cell under global warming, Geophys. Res. Lett., 34, L06805, doi:10.1029/ 2006GL028443.
    • (2007) Geophys. Res. Lett. , vol.34
    • Lu, J.A.1    Vecchi, G.A.2    Reichler, T.3
  • 30
    • 0000860969 scopus 로고
    • Thermal equilibrium of the atmosphere with a convective adjustment
    • Manabe, S., and R. F. Strickler (1964), Thermal equilibrium of the atmosphere with a convective adjustment, J. Atmos. Sci., 21, 361-385.
    • (1964) J. Atmos. Sci. , vol.21 , pp. 361-385
    • Manabe, S.1    Strickler, R.F.2
  • 31
    • 78649498824 scopus 로고    scopus 로고
    • Quality of reanalysis data during stratospheric vortex weakening and intensification events
    • doi:10.1029/2010GL045237
    • Martineau, P., and S.-W. Son (2010), Quality of reanalysis data during stratospheric vortex weakening and intensification events, Geophys. Res. Lett., 37, L22801, doi:10.1029/2010GL045237.
    • (2010) Geophys. Res. Lett. , vol.37
    • Martineau, P.1    Son, S.-W.2
  • 32
    • 0029769241 scopus 로고    scopus 로고
    • An atmospheric tape recorder: The imprint of tropical tropopause temperatures on stratospheric water vapor
    • DOI 10.1029/95JD03422
    • Mote, P. W., K. H. Rosenlof, M. E. McIntyre, E. S. Carr, J. C. Gille, J. R. Holton, J. S. Kinnersley,H. C. Pumphrey, J. M. Russell III, and J.W.Waters (1996), An atmospheric tape recorder: The imprint of tropical tropopause temperatures on stratospheric water vapor, J. Geophys. Res., 101(D2), 3989-4006, doi:10.1029/95JD03422. (Pubitemid 26472482)
    • (1996) Journal of Geophysical Research , vol.101 , Issue.D2 , pp. 3989-4006
    • Mote, P.W.1
  • 33
    • 77958609415 scopus 로고    scopus 로고
    • The polar summer tropopause inversion layer
    • Randel, W. J., and F. Wu (2010), The polar summer tropopause inversion layer, J. Atmos. Sci., 67, 2572-2581.
    • (2010) J. Atmos. Sci. , vol.67 , pp. 2572-2581
    • Randel, W.J.1    Wu, F.2
  • 34
    • 0033784823 scopus 로고    scopus 로고
    • Interannual variability of the tropical tropopause derived from radiosonde data and NCEP reanalyses
    • doi:10.1029/2000JD900155
    • Randel, W. J., F. Wu, and D. J. Gaffen (2000), Interannual variability of the tropical tropopause derived from radiosonde data and NCEP reanalyses, J. Geophys. Res., 105(D12), 15,509-15,523, doi:10.1029/2000JD900155.
    • (2000) J. Geophys. Res. , vol.105 , Issue.D12 , pp. 15509-15523
    • Randel, W.J.1    Wu, F.2    Gaffen, D.J.3
  • 35
    • 0036647143 scopus 로고    scopus 로고
    • Time-dependent upwelling in the tropical lower stratosphere estimated from the zonal-mean momentum budget
    • Randel, W. J., R. R. Garcia, and F. Wu (2002), Time-dependent upwelling in the tropical lower stratosphere estimated from the zonal-mean momentum budget, J. Atmos. Sci., 59, 2141-2152. (Pubitemid 34817280)
    • (2002) Journal of the Atmospheric Sciences , vol.59 , Issue.13 , pp. 2141-2152
    • Randel, W.J.1    Garcia, R.R.2    Wu, F.3
  • 36
    • 0347269077 scopus 로고    scopus 로고
    • Thermal variability of the tropical tropopause region derived from GPS/MET observations
    • doi:10.1029/2002JD002595
    • Randel, W. J., F. Wu, and W. R. Ríos (2003), Thermal variability of the tropical tropopause region derived from GPS/MET observations, J. Geophys. Res., 108(D1), 4024, doi:10.1029/2002JD002595.
    • (2003) J. Geophys. Res. , vol.108 , Issue.D1 , pp. 4024
    • Randel, W.J.1    Wu, F.2    Ríos, W.R.3
  • 37
    • 38349111184 scopus 로고    scopus 로고
    • The extratropical tropopause inversion layer: Global observations with GPS data, and a radiative forcing mechanism
    • Randel, W. J., F. Wu, and P. Forster (2007a), The extratropical tropopause inversion layer: Global observations with GPS data, and a radiative forcing mechanism, J. Atmos. Sci., 64, 4489-4496.
    • (2007) J. Atmos. Sci. , vol.64 , pp. 4489-4496
    • Randel, W.J.1    Wu, F.2    Forster, P.3
  • 38
    • 34250346103 scopus 로고    scopus 로고
    • Observational characteristics of double tropopauses
    • doi:10.1029/ 2006JD007904
    • Randel, W. J., D. J. Seidel, and L. L. Pan (2007b), Observational characteristics of double tropopauses, J. Geophys. Res., 112, D07309, doi:10.1029/ 2006JD007904.
    • (2007) J. Geophys. Res. , vol.112
    • Randel, W.J.1    Seidel, D.J.2    Pan, L.L.3
  • 39
    • 0030441296 scopus 로고    scopus 로고
    • The tropical tropopause over the western Pacific: Wave driving, convection, and the annual cycle
    • doi:10.1029/95JD03578
    • Reid, G. C., and K. S. Gage (1996), The tropical tropopause over the western Pacific: Wave driving, convection, and the annual cycle, J. Geophys. Res., 101(D16), 21,233-21,241, doi:10.1029/95JD03578.
    • (1996) J. Geophys. Res. , vol.101 , Issue.D16 , pp. 21233-21241
    • Reid, G.C.1    Gage, K.S.2
  • 40
    • 45849117654 scopus 로고    scopus 로고
    • Vertically propagating Klevin waves and tropical tropopause variability
    • DOI 10.1175/2007JAS2466.1
    • Ryu, J. H., S. Lee, and S. W. Son (2008), Vertically propagating Kelvin waves and tropical tropopause variability, J. Atmos. Sci., 65, 1817-1837. (Pubitemid 351888673)
    • (2008) Journal of the Atmospheric Sciences , vol.65 , Issue.6 , pp. 1817-1837
    • Ryu, J.-H.1    Lee, S.2    Son, S.-W.3
  • 42
    • 0347269079 scopus 로고    scopus 로고
    • Behavior of tropopause height and atmospheric temperature in models, reanalyses, and observations: Decadal changes
    • doi:10.1029/2002JD002258
    • Santer, B. D., et al. (2003b), Behavior of tropopause height and atmospheric temperature in models, reanalyses, and observations: Decadal changes, J. Geophys. Res., 108(D1), 4002, doi:10.1029/2002JD002258.
    • (2003) J. Geophys. Res. , vol.108 , Issue.D1 , pp. 4002
    • Santer, B.D.1
  • 43
    • 23744497663 scopus 로고    scopus 로고
    • GPS radio occultation with CHAMP and SAC-C: Global monitoring of thermal tropopause parameters
    • Schmidt, T., S. Heise, J. Wickert, G. Beyerle, and C. Reigber (2005), GPS radio occultation with CHAMP and SAC-C: Global monitoring of thermal tropopause parameters, Atmos. Chem. Phys., 5, 1473-1488. (Pubitemid 41136710)
    • (2005) Atmospheric Chemistry and Physics , vol.5 , Issue.6 , pp. 1473-1488
    • Schmidt, T.1    Heise, S.2    Wickert, J.3    Beyerle, G.4    Reigber, C.5
  • 44
    • 3242664476 scopus 로고    scopus 로고
    • The tropopause and the thermal stratification in the extratropics of a dry atmosphere
    • DOI 10.1175/1520-0469(2004) 061<1317:TTATTS>2.0.CO;2
    • Schneider, T. (2004), The tropopause and the thermal stratification in the extratropics of a dry atmosphere, J. Atmos. Sci., 61, 1317-1340. (Pubitemid 38945796)
    • (2004) Journal of the Atmospheric Sciences , vol.61 , Issue.12 , pp. 1317-1340
    • Schneider, T.1
  • 45
    • 34249898513 scopus 로고    scopus 로고
    • Variability and trends in the global tropopause estimated from radiosonde data
    • DOI 10.1029/2006JD007363
    • Seidel, D. J., and W. J. Randel (2006), Variability and trends in the global tropopause estimated from radiosonde data, J. Geophys. Res., 111, D21101, doi:10.1029/2006JD007363. (Pubitemid 46978579)
    • (2006) Journal of Geophysical Research D: Atmospheres , vol.111 , Issue.21
    • Seidel, D.J.1    Randel, W.J.2
  • 46
    • 37349128476 scopus 로고    scopus 로고
    • Recent widening of the tropical belt: Evidence from tropopause observations
    • DOI 10.1029/2007JD008861
    • Seidel, D. J., and W. J. Randel (2007), Recent widening of the tropical belt: Evidence from tropopause observations, J. Geophys. Res., 112, D20113, doi:10.1029/2007JD008861. (Pubitemid 350285699)
    • (2007) Journal of Geophysical Research D: Atmospheres , vol.112 , Issue.20
    • Seidel, D.J.1    Randel, W.J.2
  • 47
    • 0034951109 scopus 로고    scopus 로고
    • Climatological characteristics of the tropical tropopause as revealed by radiosondes
    • doi:10.1029/2000JD900837
    • Seidel, D. J., R. Ross, J. K. Angell, and G. C. Reid (2001), Climatological characteristics of the tropical tropopause as revealed by radiosondes, J. Geophys. Res., 106(D8), 7857-7878, doi:10.1029/2000JD900837.
    • (2001) J. Geophys. Res. , vol.106 , Issue.D8 , pp. 7857-7878
    • Seidel, D.J.1    Ross, R.2    Angell, J.K.3    Reid, G.C.4
  • 48
    • 34547778345 scopus 로고    scopus 로고
    • Intraseasonal variability of the zonal-mean tropical tropopause height
    • DOI 10.1175/JAS3982A.1
    • Son, S.-W., and S. Lee (2007), Intraseasonal variability of the zonal-mean tropical tropopause height, J. Atmos. Sci., 64, 2695-2706. (Pubitemid 47233160)
    • (2007) Journal of the Atmospheric Sciences , vol.64 , Issue.7 , pp. 2695-2706
    • Son, S.-W.1    Lee, S.2
  • 49
    • 35948991081 scopus 로고    scopus 로고
    • Dynamical formation of an extra-tropical tropopause inversion layer in a relatively simple general circulation model
    • DOI 10.1029/2007GL030564
    • Son, S.-W., and L. M. Polvani (2007), Dynamical formation of an extratropical tropopause inversion layer in a relatively simple general circulation model, Geophys. Res. Lett., 34, L17806, doi:10.1029/2007GL030564. (Pubitemid 350065287)
    • (2007) Geophysical Research Letters , vol.34 , Issue.17
    • Son, S.-W.1    Polvani, L.M.2
  • 50
    • 33847670072 scopus 로고    scopus 로고
    • Intraseasonal variability of the zonal-mean extratropical tropopause height
    • DOI 10.1175/JAS3855.1
    • Son, S.-W., S. Lee, and S. B. Feldstein (2007), Intraseasonal variability of the zonal-mean extratropical tropopause height, J. Atmos. Sci., 64, 608-620. (Pubitemid 46351632)
    • (2007) Journal of the Atmospheric Sciences , vol.64 , Issue.2 , pp. 608-620
    • Son, S.-W.1    Lee, S.2    Feldstein, S.B.3
  • 52
    • 0034106459 scopus 로고    scopus 로고
    • Stratospheric influence on tropopause height: The radiative constraint
    • Thuburn, J., and G. G. Craig (2000), Stratospheric influence on tropopause height: The radiative constraint, J. Atmos. Sci., 57, 17-28. (Pubitemid 30172351)
    • (2000) Journal of the Atmospheric Sciences , vol.57 , Issue.1 , pp. 17-28
    • Thuburn, J.1    Craig, G.C.2
  • 53
    • 0037867950 scopus 로고    scopus 로고
    • Static stability in the extratropical tropopause region
    • DOI 10.1175/1520-0469(2003) 060<1395:SSITET>2.0.CO;2
    • Wirth, V. (2003), Static stability in the extratropical tropopause region, J. Atmos. Sci., 60, 1395-1409. (Pubitemid 36755805)
    • (2003) Journal of the Atmospheric Sciences , vol.60 , Issue.11 , pp. 1395-1409
    • Wirth, V.1
  • 54
    • 0346008081 scopus 로고    scopus 로고
    • Tropical-extratropical connection in interannual variation of the tropopause: Comparison between NCEP/ NCAR reanalysis and an atmospheric general circulation model simulation
    • doi:10.1029/2001JD002016
    • Wong, S., and W.-C. Wang (2003), Tropical-extratropical connection in interannual variation of the tropopause: Comparison between NCEP/ NCAR reanalysis and an atmospheric general circulation model simulation, J. Geophys. Res., 108(D2), 4043, doi:10.1029/2001JD002016.
    • (2003) J. Geophys. Res. , vol.108 , Issue.D2 , pp. 4043
    • Wong, S.1    Wang, W.-C.2
  • 55
    • 0000939656 scopus 로고
    • Meteorology: A threedimensional science
    • World Meteorological Organization (WMO) Geneva, Switzerland
    • World Meteorological Organization (WMO) (1957), Meteorology: A threedimensional science, WMO Bull., 4, pp. 134-138, Geneva, Switzerland.
    • (1957) WMO Bull. , vol.4 , pp. 134-138
  • 56
    • 0028592127 scopus 로고
    • On the cause of the annual cycle in tropical lower-stratospheric temperatures
    • Yulaeva, E., J. R. Holton, and J. M. Wallace (1994), On the cause of the annual cycle in tropical lower-stratospheric temperatures, J. Atmos. Sci., 51, 169-174.
    • (1994) J. Atmos. Sci. , vol.51 , pp. 169-174
    • Yulaeva, E.1    Holton, J.R.2    Wallace, J.M.3
  • 57
    • 0035878101 scopus 로고    scopus 로고
    • The tropopause in the polar regions
    • Zängl, G., and K. P. Hoinka (2001), The tropopause in the polar regions, J. Clim., 14, 3117-3139. (Pubitemid 33045283)
    • (2001) Journal of Climate , vol.14 , Issue.14 , pp. 3117-3139
    • Zangl, G.1
  • 58
    • 0036774874 scopus 로고    scopus 로고
    • Synoptic-scale variability of the polar and subpolar tropopause: Data analysis and idealized PV inversions
    • DOI 10.1256/qj.01.76
    • Zängl, G., and V. Wirth (2002), Synoptic-scale variability of the polar and subpolar tropopause: Data analysis and idealized PV inversions, Q. J. R. Meteorol. Soc., 128, 2301-2315. (Pubitemid 35241624)
    • (2002) Quarterly Journal of the Royal Meteorological Society , vol.128 , Issue.585 PART A , pp. 2301-2315
    • Zangl, G.1    Wirth, V.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.