메뉴 건너뛰기




Volumn 133, Issue 623, 2007, Pages 517-528

A global Eta model on quasi-uniform grids

Author keywords

Cubic grid; General curvilinear system; Octagonal grid

Indexed keywords

COMPUTATIONAL EFFICIENCY; COMPUTER SIMULATION; MAPPING; MATHEMATICAL MODELS; PHYSICS;

EID: 34247233962     PISSN: 00359009     EISSN: None     Source Type: Journal    
DOI: 10.1002/qj.17     Document Type: Article
Times cited : (10)

References (53)
  • 1
    • 0001221191 scopus 로고    scopus 로고
    • Representation of topography by shaved cells in a height coordinate ocean model
    • Adcroft A, Hill C, Marshall J. 1997. Representation of topography by shaved cells in a height coordinate ocean model. Mon. Weather Rev. 125: 2293-2315.
    • (1997) Mon. Weather Rev , vol.125 , pp. 2293-2315
    • Adcroft, A.1    Hill, C.2    Marshall, J.3
  • 2
    • 11844285712 scopus 로고    scopus 로고
    • Implementation of an atmosphere-ocean general circulation model on the expanded spherical cube
    • Adcroft A, Campin J-M, Hill C, Marshall J. 2004. Implementation of an atmosphere-ocean general circulation model on the expanded spherical cube. Mon. Weather Rev. 132: 2845-2863.
    • (2004) Mon. Weather Rev , vol.132 , pp. 2845-2863
    • Adcroft, A.1    Campin, J.-M.2    Hill, C.3    Marshall, J.4
  • 3
    • 0000094119 scopus 로고
    • Computational design of the basic dynamical processes of the UCLA general circulation model
    • Academic Press; pp
    • Arakawa A, Lamb VR. 1977. Computational design of the basic dynamical processes of the UCLA general circulation model. Methods in Computational Physics. Academic Press; pp. 173-265.
    • (1977) Methods in Computational Physics , pp. 173-265
    • Arakawa, A.1    Lamb, V.R.2
  • 4
    • 0022849418 scopus 로고
    • A new convective adjustment scheme. Part I: Observational and theoretical basis
    • Betts AK. 1986. A new convective adjustment scheme. Part I: Observational and theoretical basis. Q. J. R. Meteorol. Soc. 112: 677-691.
    • (1986) Q. J. R. Meteorol. Soc , vol.112 , pp. 677-691
    • Betts, A.K.1
  • 5
    • 0022831164 scopus 로고
    • A new convective adjustment scheme. Part II: Single column tests using GATE wave, BOMEX and arctic air-mass data sets
    • Betts AK, Miller MJ. 1986. A new convective adjustment scheme. Part II: single column tests using GATE wave, BOMEX and arctic air-mass data sets. Q. J. R. Meteorol. Soc. 112: 693-709.
    • (1986) Q. J. R. Meteorol. Soc , vol.112 , pp. 693-709
    • Betts, A.K.1    Miller, M.J.2
  • 6
    • 0028602325 scopus 로고
    • The new NMC mesoscale Eta model: Description and forecast examples
    • Black TL. 1994. The new NMC mesoscale Eta model: Description and forecast examples. Weather and Forecasting 9: 265-278.
    • (1994) Weather and Forecasting , vol.9 , pp. 265-278
    • Black, T.L.1
  • 7
    • 0024815403 scopus 로고
    • A comparison of three numerical methods for solving differential equations on the sphere
    • Browning GL, Hack JJ, Swarztrauber PN. 1989. A comparison of three numerical methods for solving differential equations on the sphere. Mon. Weather Rev. 117: 1058-1075.
    • (1989) Mon. Weather Rev , vol.117 , pp. 1058-1075
    • Browning, G.L.1    Hack, J.J.2    Swarztrauber, P.N.3
  • 8
    • 0031432796 scopus 로고    scopus 로고
    • Impact of atmospheric surface-layer parameterizations in the new land-surface scheme of the NCEP mesoscale Eta model
    • Chen F, Janjić Z, Mitchell K. 1997. Impact of atmospheric surface-layer parameterizations in the new land-surface scheme of the NCEP mesoscale Eta model. Boundary-Layer Meteorol. 85: 391-421.
    • (1997) Boundary-Layer Meteorol , vol.85 , pp. 391-421
    • Chen, F.1    Janjić, Z.2    Mitchell, K.3
  • 9
    • 1442314273 scopus 로고    scopus 로고
    • Implementation of Noah land surface model advances in the National Centers for Environmental Prediction operational mesoscale Eta model
    • doi: 10.1029/ 2002JD003296
    • Ek MB, Mitchell KE, Lin Y, Rogers E, Grunmann P, Koren V, Gayno G, Tarpley JD. 2003. Implementation of Noah land surface model advances in the National Centers for Environmental Prediction operational mesoscale Eta model. J. Geophys. Res. 108: (D22), doi: 10.1029/ 2002JD003296.
    • (2003) J. Geophys. Res , vol.108 , Issue.D22
    • Ek, M.B.1    Mitchell, K.E.2    Lin, Y.3    Rogers, E.4    Grunmann, P.5    Koren, V.6    Gayno, G.7    Tarpley, J.D.8
  • 10
    • 0016532783 scopus 로고
    • The simplified exchange approximation: A new method for radiative transfer calculations
    • Fels SB, Schwarzkopf MD. 1975. The simplified exchange approximation: a new method for radiative transfer calculations. J. Atmos. Sci. 32: 1475-1488.
    • (1975) J. Atmos. Sci , vol.32 , pp. 1475-1488
    • Fels, S.B.1    Schwarzkopf, M.D.2
  • 11
    • 0035269907 scopus 로고    scopus 로고
    • A variable resolution stretched-grid general circulation model: Regional climate simulation
    • Fox-Rabinovitz MS, Takacs LL, Govindaraju RC, Suarez M. 2001. A variable resolution stretched-grid general circulation model: regional climate simulation. Mon. Weather Rev. 129: 453-469.
    • (2001) Mon. Weather Rev , vol.129 , pp. 453-469
    • Fox-Rabinovitz, M.S.1    Takacs, L.L.2    Govindaraju, R.C.3    Suarez, M.4
  • 12
    • 0019204220 scopus 로고
    • Numerical prediction of convectively driven mesoscale pressure systems. Part I: Convective parameterization
    • Fritsch JM, Chappell CF. 1980. Numerical prediction of convectively driven mesoscale pressure systems. Part I: convective parameterization. J. Atmos. Sci. 37: 1722-1733.
    • (1980) J. Atmos. Sci , vol.37 , pp. 1722-1733
    • Fritsch, J.M.1    Chappell, C.F.2
  • 13
    • 19944434306 scopus 로고    scopus 로고
    • The new GFDL global atmospheric and land model. AM2-LM2: Evaluation with prescribed SST simulation
    • GFDL Global Atmospheric Model Development Team
    • GFDL Global Atmospheric Model Development Team. 2004. The new GFDL global atmospheric and land model. AM2-LM2: Evaluation with prescribed SST simulation. J. Climate 17: 4641-4673.
    • (2004) J. Climate , vol.17 , pp. 4641-4673
  • 14
    • 0028669607 scopus 로고
    • A proposal for intercomparison of the dynamical cores of atmospheric general circulation models
    • Held I, Suarez M. 1994. A proposal for intercomparison of the dynamical cores of atmospheric general circulation models. Bull. Am. Meteorol. Soc. 75: 1825-1830.
    • (1994) Bull. Am. Meteorol. Soc , vol.75 , pp. 1825-1830
    • Held, I.1    Suarez, M.2
  • 15
    • 0000852880 scopus 로고
    • Pressure gradient force and advection scheme used for forecasting with steep and small scale topography
    • Janjić ZI. 1977. Pressure gradient force and advection scheme used for forecasting with steep and small scale topography. Beitr. Phys. Atmos. 50: 186-199.
    • (1977) Beitr. Phys. Atmos , vol.50 , pp. 186-199
    • Janjić, Z.I.1
  • 16
    • 0002702848 scopus 로고
    • Forward-backward scheme modified to prevent two-grid-interval noise and its application in sigma coordinate models
    • Janjić ZI. 1979. Forward-backward scheme modified to prevent two-grid-interval noise and its application in sigma coordinate models. Beitr. Phys. Atmos. 52: 69-84.
    • (1979) Beitr. Phys. Atmos , vol.52 , pp. 69-84
    • Janjić, Z.I.1
  • 17
    • 0021535165 scopus 로고
    • Nonlinear advection schemes and energy cascade on semi-staggered grids
    • Janjić ZI. 1984. Nonlinear advection schemes and energy cascade on semi-staggered grids. Mon. Weather Rev. 112: 1234-1245.
    • (1984) Mon. Weather Rev , vol.112 , pp. 1234-1245
    • Janjić, Z.I.1
  • 18
    • 0025662461 scopus 로고
    • The step-mountain coordinate: Physical package
    • Janjić ZI. 1990. The step-mountain coordinate: physical package. Mon. Weather Rev. 118: 1429-1443.
    • (1990) Mon. Weather Rev , vol.118 , pp. 1429-1443
    • Janjić, Z.I.1
  • 19
    • 0028607757 scopus 로고
    • The step-mountain eta coordinate model: Further developments of the convection, viscous sublayer, and turbulence closure schemes
    • Janjić ZI. 1994. The step-mountain eta coordinate model: Further developments of the convection, viscous sublayer, and turbulence closure schemes. Mon. Weather Rev. 122: 927-945.
    • (1994) Mon. Weather Rev , vol.122 , pp. 927-945
    • Janjić, Z.I.1
  • 20
    • 0025592294 scopus 로고
    • A one-dimensional entraining/detraining plume model and its application in convective parameterization
    • Kain J, Fritsch JM. 1990. A one-dimensional entraining/detraining plume model and its application in convective parameterization. J. Atmos. Sci. 47: 2784-2802.
    • (1990) J. Atmos. Sci , vol.47 , pp. 2784-2802
    • Kain, J.1    Fritsch, J.M.2
  • 21
    • 0015960869 scopus 로고
    • A parameterization for the absorption of solar radiation in the earth's atmosphere
    • Lacis AA, Hansen JE. 1974. A parameterization for the absorption of solar radiation in the earth's atmosphere. J. Atmos. Sci. 31: 118-133.
    • (1974) J. Atmos. Sci , vol.31 , pp. 118-133
    • Lacis, A.A.1    Hansen, J.E.2
  • 22
    • 0005042286 scopus 로고    scopus 로고
    • Semi-Lagrangian advection on conformal-cubic grids
    • McGregor JL. 1996. Semi-Lagrangian advection on conformal-cubic grids. Mon. Weather Rev. 124: 1311-1322.
    • (1996) Mon. Weather Rev , vol.124 , pp. 1311-1322
    • McGregor, J.L.1
  • 24
    • 0000100175 scopus 로고
    • A method for construction of second-order accuracy difference schemes permitting no false two-grid-interval wave in the height field
    • Mesinger F. 1973. A method for construction of second-order accuracy difference schemes permitting no false two-grid-interval wave in the height field. Tellus 25: 444-458.
    • (1973) Tellus , vol.25 , pp. 444-458
    • Mesinger, F.1
  • 25
    • 0001476503 scopus 로고
    • Forward-backward scheme, and its use in a limited area model
    • Mesinger F. 1977. Forward-backward scheme, and its use in a limited area model. Beitr. Phys. Atmos. 50: 200-210.
    • (1977) Beitr. Phys. Atmos , vol.50 , pp. 200-210
    • Mesinger, F.1
  • 26
    • 0000358006 scopus 로고
    • A blocking technique for representation of mountains in atmospheric models
    • Mesinger F. 1984. A blocking technique for representation of mountains in atmospheric models. Riv. Meteorol. Aeronautica 44: 195-202.
    • (1984) Riv. Meteorol. Aeronautica , vol.44 , pp. 195-202
    • Mesinger, F.1
  • 27
    • 0030410955 scopus 로고    scopus 로고
    • Improvements in quantitative precipitation forecasts with the Eta regional model at the National Centers for Environmental Prediction: The 48-km upgrade
    • Mesinger F. 1996. Improvements in quantitative precipitation forecasts with the Eta regional model at the National Centers for Environmental Prediction: The 48-km upgrade. Bull. Am. Meteorol. Soc. 77: 2637-2649.
    • (1996) Bull. Am. Meteorol. Soc , vol.77 , pp. 2637-2649
    • Mesinger, F.1
  • 28
    • 77956727135 scopus 로고    scopus 로고
    • Numerical methods: The Arakawa approach, horizontal grid, global and limited-area modeling
    • Randall D. A, ed, Academic Press: pp
    • Mesinger F. 2000. Numerical methods: The Arakawa approach, horizontal grid, global and limited-area modeling. In General circulation model development: Past, present and, future, Randall D. A. (ed). Academic Press: pp. 373-419.
    • (2000) General circulation model development: Past, present and, future , pp. 373-419
    • Mesinger, F.1
  • 29
    • 34247277515 scopus 로고    scopus 로고
    • Dynamical core design: A neglected thrust toward increasing NWP skill several days ahead
    • In the, Montreal, Canada, 6-10 December, Available at
    • Mesinger F. 2004. 'Dynamical core design: A neglected thrust toward increasing NWP skill several days ahead'. In the First THORPEX International Science Symposium. Montreal, Canada, 6-10 December 2004. Available at: http://box.mmm.ucar.edu/uswrp/thorpex/symposium_Dec2004/ thursday/Thurs_945_Mesinger.pdf.
    • (2004) First THORPEX International Science Symposium
    • Mesinger, F.1
  • 31
    • 34247264818 scopus 로고    scopus 로고
    • Mesinger F, Jović D. 2004. 'Vertical coordinate, QPF, and resolution'. In the 2004 Workshop on the solution of partial differential equations on the sphere, Frontier Research Center for Global Change, Yokohama, Japan, 20-23 July 2004. Abstract available at http://www.jamstec.go.jp/frcgc/eng/workshop/pde2004/abstweb/pdf.
    • Mesinger F, Jović D. 2004. 'Vertical coordinate, QPF, and resolution'. In the 2004 Workshop on the solution of partial differential equations on the sphere, Frontier Research Center for Global Change, Yokohama, Japan, 20-23 July 2004. Abstract available at http://www.jamstec.go.jp/frcgc/eng/workshop/pde2004/abstweb/pdf.
  • 32
    • 0024249870 scopus 로고
    • The step mountain coordinate: Model description and performance for cases of Alpine cyclogenesis and for a case of an Appalachian redevelopment
    • Mesinger F, Janjić ZI, Ničković S, Gavrilov D, Deaven DG. 1988. The step mountain coordinate: Model description and performance for cases of Alpine cyclogenesis and for a case of an Appalachian redevelopment. Mon. Weather Rev. 116: 1493-1518.
    • (1988) Mon. Weather Rev , vol.116 , pp. 1493-1518
    • Mesinger, F.1    Janjić, Z.I.2    Ničković, S.3    Gavrilov, D.4    Deaven, D.G.5
  • 33
    • 34247204118 scopus 로고    scopus 로고
    • Mesinger F, Black T, Brill K, Chuang H-Y, DiMego G, Rogers E. 2002. 'A decade+ of the Eta performance, including that beyond two days: Any lessons for the road ahead?' pp. 387-390 in preprints for 19th Conf. on Weather Analysis and Forecasting/15th Conf. on Numerical Weather Prediction, San Antonio, Texas. American Meteorol. Soc., Boston, USA.
    • Mesinger F, Black T, Brill K, Chuang H-Y, DiMego G, Rogers E. 2002. 'A decade+ of the Eta performance, including that beyond two days: Any lessons for the road ahead?' pp. 387-390 in preprints for 19th Conf. on Weather Analysis and Forecasting/15th Conf. on Numerical Weather Prediction, San Antonio, Texas. American Meteorol. Soc., Boston, USA.
  • 34
    • 34247248714 scopus 로고    scopus 로고
    • Mesinger F, Rančić M, Jović D, Zhang H, Popović J. 2006. 'Forward-backward scheme modified to suppress lattice separation and impact of the order of execution'. General Assembly of the European Geosciences Union, 2-7 April 2006, Vienna, Austria, EGU06-A-10164. Abstract available at http://cosis.net/abstracts/ EGU06/10164/EGU06-J-10164.pdf.
    • Mesinger F, Rančić M, Jović D, Zhang H, Popović J. 2006. 'Forward-backward scheme modified to suppress lattice separation and impact of the order of execution'. General Assembly of the European Geosciences Union, 2-7 April 2006, Vienna, Austria, EGU06-A-10164. Abstract available at http://cosis.net/abstracts/ EGU06/10164/EGU06-J-10164.pdf.
  • 35
    • 0001095651 scopus 로고
    • A coordinate system having some special advantages for numerical forecasting
    • Phillips NA. 1957. A coordinate system having some special advantages for numerical forecasting. J. Meteorol. 14: 184-185.
    • (1957) J. Meteorol , vol.14 , pp. 184-185
    • Phillips, N.A.1
  • 36
    • 0001339525 scopus 로고
    • Numerical integration of the primitive equations on the hemisphere
    • Phillips NA. 1959. Numerical integration of the primitive equations on the hemisphere. Mon. Weather Rev. 87: 333-345.
    • (1959) Mon. Weather Rev , vol.87 , pp. 333-345
    • Phillips, N.A.1
  • 37
    • 0039918120 scopus 로고    scopus 로고
    • Conformal octagon: An attractive framework for global models offering quasi-uniform regional enhancement of resolution
    • Purser RJ, Rančić M. 1997. Conformal octagon: an attractive framework for global models offering quasi-uniform regional enhancement of resolution. Meteorol. Atmos. Phys. 62: 33-48.
    • (1997) Meteorol. Atmos. Phys , vol.62 , pp. 33-48
    • Purser, R.J.1    Rančić, M.2
  • 38
    • 0031779349 scopus 로고    scopus 로고
    • Smooth quasi-homogeneous gridding of the sphere
    • Purser RJ, Rančić M. 1998. Smooth quasi-homogeneous gridding of the sphere. Q. J. R. Meteorol. Soc. 124: 637-647.
    • (1998) Q. J. R. Meteorol. Soc , vol.124 , pp. 637-647
    • Purser, R.J.1    Rančić, M.2
  • 39
    • 0024189817 scopus 로고
    • Fourth-order horizontal advection schemes on the semi-staggered grid
    • Rančić M. 1988. Fourth-order horizontal advection schemes on the semi-staggered grid. Mon. Weather Rev. 116: 1274-1288.
    • (1988) Mon. Weather Rev , vol.116 , pp. 1274-1288
    • Rančić, M.1
  • 40
    • 34247259797 scopus 로고    scopus 로고
    • Rančić M, Zhang H. 2002. 'A framework for globalization of regional atmospheric models: Dry core and quasi-uniform grids'. In preprints for 15th Conference on Numerical Weather Prediction, San Antonio, Texas, 12-16 August 2002. American Meteorological Society, Boston, USA.
    • Rančić M, Zhang H. 2002. 'A framework for globalization of regional atmospheric models: Dry core and quasi-uniform grids'. In preprints for 15th Conference on Numerical Weather Prediction, San Antonio, Texas, 12-16 August 2002. American Meteorological Society, Boston, USA.
  • 41
    • 33745399851 scopus 로고    scopus 로고
    • Variable resolution on quasi-uniform grids: Linear advection experiments
    • doi:10.1007/s00703-005-0165-4
    • Rančić M, Zhang H. 2006. Variable resolution on quasi-uniform grids: Linear advection experiments. Meteorol. Atmos. Phys. 93: 97-114, doi:10.1007/s00703-005-0165-4.
    • (2006) Meteorol. Atmos. Phys , vol.93 , pp. 97-114
    • Rančić, M.1    Zhang, H.2
  • 42
    • 0030452194 scopus 로고    scopus 로고
    • A global shallow-water model using an expanded spherical cube: Gnomonic versus conformal coordinates
    • Rančić M, Purser RJ, Mesinger F. 1996. A global shallow-water model using an expanded spherical cube: gnomonic versus conformal coordinates. Q. J. R. Meteorol. Soc. 122: 959-982.
    • (1996) Q. J. R. Meteorol. Soc , vol.122 , pp. 959-982
    • Rančić, M.1    Purser, R.J.2    Mesinger, F.3
  • 43
    • 0036566625 scopus 로고    scopus 로고
    • Potential enstrophy and energy conserving numerical scheme for solution of the shallow water equations on a geodesic grid
    • Ringler T, Randall D. 2002. Potential enstrophy and energy conserving numerical scheme for solution of the shallow water equations on a geodesic grid. Mon. Weather Rev. 130: 1397-1410.
    • (2002) Mon. Weather Rev , vol.130 , pp. 1397-1410
    • Ringler, T.1    Randall, D.2
  • 44
    • 0033832359 scopus 로고    scopus 로고
    • Modeling the atmospheric general circulation using a spherical geodesic grid: A new class of dynamical cores
    • Ringler T, Heiks RP, Randall D. 2000. Modeling the atmospheric general circulation using a spherical geodesic grid: A new class of dynamical cores. Mon. Weather Rev. 128: 2471-2489.
    • (2000) Mon. Weather Rev , vol.128 , pp. 2471-2489
    • Ringler, T.1    Heiks, R.P.2    Randall, D.3
  • 45
    • 0030096121 scopus 로고    scopus 로고
    • The 'cubed sphere': A new method for the solution of partial differential equations in spherical geometry
    • Ronchi C, Iaccono R, Paolucci PS. 1996. The 'cubed sphere': A new method for the solution of partial differential equations in spherical geometry. J. Comput. Phys. 124: 93-114.
    • (1996) J. Comput. Phys , vol.124 , pp. 93-114
    • Ronchi, C.1    Iaccono, R.2    Paolucci, P.S.3
  • 46
    • 0000644762 scopus 로고
    • Conservative finite-differencing approximations of the primitive equations on quasi-uniform spherical grids
    • Sadourny R. 1972. Conservative finite-differencing approximations of the primitive equations on quasi-uniform spherical grids. Mon. Weather Rev. 22: 1107-1115.
    • (1972) Mon. Weather Rev , vol.22 , pp. 1107-1115
    • Sadourny, R.1
  • 47
    • 0000184292 scopus 로고
    • Integration of the nondivergent barotropic vorticity equation with an icosahedral-hexagonal grid for the sphere
    • Sadourny R, Arakawa A, Mintz Y. 1968. Integration of the nondivergent barotropic vorticity equation with an icosahedral-hexagonal grid for the sphere. Mon. Weather Rev. 96: 351-356.
    • (1968) Mon. Weather Rev , vol.96 , pp. 351-356
    • Sadourny, R.1    Arakawa, A.2    Mintz, Y.3
  • 48
    • 0000037511 scopus 로고
    • The multidimensional positive definite advection transport algorithm: Nonoscillatory option
    • Smolarkiewicz PK, Grabowski WW. 1990. The multidimensional positive definite advection transport algorithm: nonoscillatory option. J. Comput. Phys. 86: 355-375.
    • (1990) J. Comput. Phys , vol.86 , pp. 355-375
    • Smolarkiewicz, P.K.1    Grabowski, W.W.2
  • 50
    • 0031396788 scopus 로고    scopus 로고
    • A tutorial on lateral boundary conditions as a basic and potentially serious limitation to regional numerical weather prediction
    • Warner TT, Peterson RA, Treadon RT. 1997. A tutorial on lateral boundary conditions as a basic and potentially serious limitation to regional numerical weather prediction. Bull. Am. Meteorol. Soc. 78: 2599-2617.
    • (1997) Bull. Am. Meteorol. Soc , vol.78 , pp. 2599-2617
    • Warner, T.T.1    Peterson, R.A.2    Treadon, R.T.3
  • 51
    • 0009862470 scopus 로고    scopus 로고
    • A step-mountain coordinate general circulation mode: Description and validation of medium-range forecasts
    • Wyman BL. 1996. A step-mountain coordinate general circulation mode: Description and validation of medium-range forecasts. Mon. Weather Rev. 124: 102-121.
    • (1996) Mon. Weather Rev , vol.124 , pp. 102-121
    • Wyman, B.L.1
  • 52
    • 0001629033 scopus 로고
    • Integration of the primitive barotropic model over a spherical geodesic grid
    • Williamson DL. 1970. Integration of the primitive barotropic model over a spherical geodesic grid. Mon. Weather Rev. 98: 512-520.
    • (1970) Mon. Weather Rev , vol.98 , pp. 512-520
    • Williamson, D.L.1
  • 53
    • 0000417622 scopus 로고    scopus 로고
    • A prognostic cloud scheme for operational NWP models
    • Zhao Q, Carr FH. 1997. A prognostic cloud scheme for operational NWP models. Mon. Weather Rev. 125: 1931-1953.
    • (1997) Mon. Weather Rev , vol.125 , pp. 1931-1953
    • Zhao, Q.1    Carr, F.H.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.