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Volumn , Issue , 2004, Pages 19-24

Developments in ECMWF's 4D-Var system

Author keywords

[No Author keywords available]

Indexed keywords

ALGORITHMS; ATMOSPHERIC HUMIDITY; CLOUDS; CONDENSATION; DEGREES OF FREEDOM (MECHANICS); ERROR ANALYSIS; RAIN; WEATHER FORECASTING; WEATHER SATELLITES; WIND STRESS;

EID: 2442487598     PISSN: 00030007     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Conference Paper
Times cited : (7)

References (16)
  • 1
    • 0034098290 scopus 로고    scopus 로고
    • Diagnosis of background errors for radiances and other observable quantities in a variational data assimilation scheme, and the explanation of a case of poor convergence
    • Andersson, E., M. Fisher, R. Munro and A. McNally, 2000: Diagnosis of background errors for radiances and other observable quantities in a variational data assimilation scheme, and the explanation of a case of poor convergence. Q. J. R. Meteorol. Soc. 126, 1455-1472.
    • (2000) Q. J. R. Meteorol. Soc. , vol.126 , pp. 1455-1472
    • Andersson, E.1    Fisher, M.2    Munro, R.3    McNally, A.4
  • 3
    • 0041803106 scopus 로고    scopus 로고
    • The choice of variable for atmospheric moisture analysis
    • Dee, D. P. and A. M. Da Silva, 2003: The choice of variable for atmospheric moisture analysis. Mon. Wea. Rev., 131, 155-171.
    • (2003) Mon. Wea. Rev. , vol.131 , pp. 155-171
    • Dee, D.P.1    Da Silva, A.M.2
  • 4
    • 0035883240 scopus 로고    scopus 로고
    • Accurate low dimensional approximation of the linear dynamics of fluid flow
    • Farrell, B. F. and P. J. Ioannu, 2001a: Accurate low dimensional approximation of the linear dynamics of fluid flow. J. Atmos. Sci., 58, 2771-2789.
    • (2001) J. Atmos. Sci. , vol.58 , pp. 2771-2789
    • Farrell, B.F.1    Ioannu, P.J.2
  • 5
    • 0035663180 scopus 로고    scopus 로고
    • State estimation using a reduced order Kalman filter
    • Farrell, B. F. and P. J. Ioannu, 2001b: State estimation using a reduced order Kalman filter. J. Atmos. Sci., 58, 3666-3680.
    • (2001) J. Atmos. Sci. , vol.58 , pp. 3666-3680
    • Farrell, B.F.1    Ioannu, P.J.2
  • 6
    • 0141902189 scopus 로고    scopus 로고
    • Developments in 4D-Var and Kalman Filtering
    • Fisher, M. and E. Andersson, 2001: Developments in 4D-Var and Kalman Filtering. ECMWF Tech Memo, 347, pp 36. http://www.ecmwf.int/publications/ library
    • (2001) ECMWF Tech Memo , vol.347 , pp. 36
    • Fisher, M.1    Andersson, E.2
  • 8
    • 2442550220 scopus 로고    scopus 로고
    • Estimation of entropy reduction and degrees of freedom for signal for large variational analysis systems
    • Fisher, M., 2003b: Estimation of entropy reduction and degrees of freedom for signal for large variational analysis systems. ECMWF Tech Memo, 397, pp 18. http://www.ecmwf.int/publications/library
    • (2003) ECMWF Tech Memo , vol.397 , pp. 18
    • Fisher, M.1
  • 9
    • 2442603997 scopus 로고    scopus 로고
    • A critical evaluation of the reduced-rank Kalman filter (RRKF) approach to flow-dependent cycling of background error covariances
    • In Press
    • Fisher, M., L. Isaksen, M. Ehrendorfer, A. Beck and E. Andersson, 2003: A critical evaluation of the reduced-rank Kalman filter (RRKF) approach to flow-dependent cycling of background error covariances. ECMWF Tech. Memo. In Press. http://www.ecmwf.int/publications/library
    • (2003) ECMWF Tech. Memo.
    • Fisher, M.1    Isaksen, L.2    Ehrendorfer, M.3    Beck, A.4    Andersson, E.5
  • 11
    • 0342804504 scopus 로고    scopus 로고
    • The ECMWF operational Implementation of four-dimensional variational assimilation. Part I: Experimental results with simplified physics
    • Rabier, F., H. Järvinen, E. Klinker, J.F. Mahfouf and A. Simmons, 2000: The ECMWF operational Implementation of four-dimensional variational assimilation. Part I: experimental results with simplified physics. Q. J. R. Meteorol. Soc. 126, 1143-1170.
    • (2000) Q. J. R. Meteorol. Soc. , vol.126 , pp. 1143-1170
    • Rabier, F.1    Järvinen, H.2    Klinker, E.3    Mahfouf, J.F.4    Simmons, A.5
  • 12
    • 0036129946 scopus 로고    scopus 로고
    • Some aspects of the improvement in skill of numerical weather prediction
    • Simmons, A. J. and A. Hollingsworth, 2002: Some aspects of the improvement In skill of numerical weather prediction. Q. J. R. Meteorol. Soc., 128, 647-678.
    • (2002) Q. J. R. Meteorol. Soc. , vol.128 , pp. 647-678
    • Simmons, A.J.1    Hollingsworth, A.2
  • 13
    • 2442621797 scopus 로고    scopus 로고
    • Observations, assimilation and the improvement of global weather prediction - Some results from operational forecasting and ERA-40
    • 8-12 Sept 2003, Reading, U.K. In press
    • Simmons, A., 2003: Observations, assimilation and the improvement of global weather prediction - Some results from operational forecasting and ERA-40. Proc. ECMWF Seminar on "Recent Developments in Data Assimilation for Atmosphere and Ocean", 8-12 Sept 2003, Reading, U.K. In press. http://www.ecmwf.int/newsevents/meetings/annual se minar/index.html
    • (2003) Proc. ECMWF Seminar on "Recent Developments in Data Assimilation for Atmosphere and Ocean"
    • Simmons, A.1
  • 14
    • 2442441434 scopus 로고    scopus 로고
    • Assimilation of high-resolution satellite data
    • Thépaut, J.N. and E. Andersson, 2003: Assimilation of high-resolution satellite data. ECMWF Newsletter, 97, 6-12. http://www.ecmwf. int/publications/newsletters
    • (2003) ECMWF Newsletter , vol.97 , pp. 6-12
    • Thépaut, J.N.1    Andersson, E.2
  • 15
    • 25044446714 scopus 로고    scopus 로고
    • Diagnostics of linear and incremental approximations in 4D-Var
    • Accepted
    • Trémolet, Y., 2003: Diagnostics of linear and incremental approximations in 4D-Var. Q. J. R. Meteorol. Soc., Accepted.
    • (2003) Q. J. R. Meteorol. Soc.
    • Trémolet, Y.1
  • 16
    • 0032428039 scopus 로고    scopus 로고
    • Multipletruncation incremental approach for four-dimensional variational data assimilation
    • Veersé, F. and J.-N. Thépaut, 1998: Multipletruncation incremental approach for four-dimensional variational data assimilation. Q. J. R. Meteorol. Soc. 124, 1889-1908.
    • (1998) Q. J. R. Meteorol. Soc. , vol.124 , pp. 1889-1908
    • Veersé, F.1    Thépaut, J.-N.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.