设 大气环流概述一再分析资料 再分析资料：ERA-40和NCEP/NCAR ERA-40(earlier ECMWF re-analysis,ERA-15,1979 to 1993) ■Dataset product: O mid-1957 to mid-2002,global grids 4-times daily,monthly o Horizontal:2.5 X 2.5 degree(Basic) o Vertical:23 pressure levels (Basic) Model for data assimilation:TL159 with 60 levels Reference Uppala.S.M.Kallberg.P.W.Simmons.A.J..Andrae.U.da Costa Bechtold,V..Fiorino.M.Gibson.J.K..Haseler.J.. Hernandez,A.,Kelly,G.A.,Li,X.,Onogi,K.,Saarinen,S.,Sokka,N.,Allan,R.P,Andersson,E.,Arpe,K.,Balmaseda,M.A.,Beljaars,AC.M.. van de Berg.L.,Bidlot,J.,Bormann,N.,Caires,S.,Chevallier,F.,Dethof,A.,Dragosavac,M.,Fisher,M.,Fuentes,M.,Hagemann,S.,Holm, E.,Hoskins,B.J.,Isaksen,L.,Janssen,P.A.E.M.,Jenne,R.,McNally,A.P.,Mahfouf,J.-F.,Morcrette,J.-J..Rayner,N.A.,Saunders,R.W., Simon,P.,Sterl,A.,Trenberth,K.E.,Untch,A.,Vasiljevic,D.,Viterbo,P.,and Woollen,J.2005:The ERA-40 re-analysis.Quart.J.R. Meteorol.Soc,131,2961-3012.doi:10.1256/qj.04.176 http://www.ecmwf.int/products/data/archive/descriptions/e4/index.html, http://dss.ucar.edu/pub/era40/ 授课教师：张洋 8
⼤⽓环流概述－再分析资料 ! 再分析资料：ERA-40和NCEP/NCAR " ERA-40 (earlier ECMWF re-analysis, ERA-15, 1979 to 1993) ! Dataset product: " mid-1957 to mid-2002, global grids " 4-times daily, monthly " Horizontal: 2.5 X 2.5 degree (Basic) " Vertical: 23 pressure levels (Basic) ! Model for data assimilation: TL159 with 60 levels ! Reference: Uppala, S.M., Kållberg, P.W., Simmons, A.J., Andrae, U., da Costa Bechtold, V., Fiorino, M., Gibson, J.K., Haseler, J., Hernandez, A., Kelly, G.A., Li, X., Onogi, K., Saarinen, S., Sokka, N., Allan, R.P., Andersson, E., Arpe, K., Balmaseda, M.A., Beljaars, A.C.M., van de Berg, L., Bidlot, J., Bormann, N., Caires, S., Chevallier, F., Dethof, A., Dragosavac, M., Fisher, M., Fuentes, M., Hagemann, S., Hólm, E., Hoskins, B.J., Isaksen, L., Janssen, P.A.E.M., Jenne, R., McNally, A.P., Mahfouf, J.-F., Morcrette, J.-J., Rayner, N.A., Saunders, R.W., Simon, P., Sterl, A., Trenberth, K.E., Untch, A., Vasiljevic, D., Viterbo, P., and Woollen, J. 2005: The ERA-40 re-analysis. Quart. J. R. Meteorol. Soc., 131, 2961-3012.doi:10.1256/qj.04.176 ! http://www.ecmwf.int/products/data/archive/descriptions/e4/index.html, ! http://dss.ucar.edu/pub/era40/ 授课教师：张洋 8
设 大气环流概述一再分析资料 ■ ERA-Interim: Dataset: 1979 to 2019,global grids 3-hourly surface variables,6-hourly upper air variables in the troposphere and stratosphere,monthly mean Horizontal:0.75 X 0.75 degree (ERA40:2.5 degree) o Vertical:37 pressure levels (ERA40:23 levels) Model:TL255 (ERA40:TL159),60 levels ■ Reference:Dee DP.Uppala SM.Simmons AJ.Berrisford P.Poli P.Kobayashi s,Andrae U.Balmaseda MA. Balsamo G,Bauer P.Bechtold P.Beljaars ACM,van de Berg L,Bidlot J,Bormann N,Delsol C,Dragani R,Fuentes M,Geer AJ,Haimberger L,Healy SB,Hersbach H,Holm EV,Isaksen L,K'allberg P,K'ohler M,"Matricardi M.McNally AP, Monge-Sanz BM,Morcrette J-J,Park B-K,Peubey C,de Rosnay P.Tavolato C,Thepaut J-N,Vitart F.2011.The ERA- Interim reanalysis:configuration and performance of the data assimilation system.Q.J.R.Meteorol. S0c.137:553-597.D0110.1002/qj.828. http://www.ecmwf.int/research/era/do/get/era-interim 授课教师：张洋 9
⼤⽓环流概述－再分析资料 ! ERA-Interim: ! Dataset: " 1979 to 2019, global grids " 3-hourly surface variables, 6-hourly upper air variables in the troposphere and stratosphere, monthly mean " Horizontal: 0.75 X 0.75 degree (ERA40: 2.5 degree) " Vertical: 37 pressure levels (ERA40: 23 levels) ! Model: TL255 (ERA40: TL159), 60 levels ! Reference: Dee DP, Uppala SM, Simmons AJ, Berrisford P, Poli P, Kobayashi S, Andrae U, Balmaseda MA, Balsamo G, Bauer P, Bechtold P, Beljaars ACM, van de Berg L, Bidlot J, Bormann N, Delsol C, Dragani R, Fuentes M, Geer AJ, Haimberger L, Healy SB, Hersbach H, Holm EV, Isaksen L, K ´ allberg P, K ˚ ohler M, ¨ Matricardi M, McNally AP, Monge-Sanz BM, Morcrette J-J, Park B-K, Peubey C, de Rosnay P, Tavolato C, Thepaut J-N, Vitart F. 2011. The ERAInterim reanalysis: configuration and performance of the data assimilation system. Q. J. R. Meteorol. Soc. 137: 553–597. DOI:10.1002/qj.828. ! http://www.ecmwf.int/research/era/do/get/era-interim 授课教师：张洋 9
设 大气环流概述一再分析资料 UNN ERA-Interim vs.ERA40: Higher horizontal and vertical resolutions Improved model:T255 horizontal resolution,improved model physics,and improved fast radiative transfer model; Better data assimilations to overcome the difficulties related to the use of satellite data,including 0 4D-Var; Variational bias correction of satellite radiance data,and other improvements in bias handling; More extensive use of radiances. Improvements in: o representation of the hydrological cycle o the quality of the stratospheric circulation o the consistency in time of the reanalysed fields 授课教师：张洋10
⼤⽓环流概述－再分析资料 ! ERA-Interim vs. ERA40: ! Higher horizontal and vertical resolutions ! Improved model: T255 horizontal resolution, improved model physics, and improved fast radiative transfer model; ! Better data assimilations to overcome the difficulties related to the use of satellite data, including " 4D-Var; " Variational bias correction of satellite radiance data, and other improvements in bias handling; " More extensive use of radiances. ! Improvements in: " representation of the hydrological cycle " the quality of the stratospheric circulation " the consistency in time of the reanalysed fields 授课教师：张洋 10