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A critical error in numerical simulation stems from the physical parameters in the model. To better assess the accuracy of the numerical stimulation, a mthod of impoving physical parameters is urgently desired. By modifying the four-dimensional variatiaonal data assimilation 4DVAR technique, in this paper a new method is proposed based on the use of observational data to optimize initial field and subsequent physical model. Ekman boundary layer model and Lorenz model are taken for example to conduct numerical experiment. The results show that through the variations in observational data, physical parameters and initial field are improved, thus effectively enhancing the accuracy of the model. This method improves the numerical model and physical parameters.
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Keywords:
- four-dimensional variatiaonal data assimilation /
- observational data /
- model parameters /
- optimize
[1] Chou J F, Li J P, Gao L 2006 Chin. Phys. B 15 882
[2] Wang T T, Li W L, Chen Z H, Miao L 2010 Chin. Phys. B 19 076401
[3] Lewis J M, Derber J C 1985 Tellus 37 309
[4] LeDemit F, Talagrand O 1986 Tellus 38 97
[5] Chu K K, Tan Z M, Ming X 2007 Adv. Atmos. Sci. 24 281
[6] Zhao J, Wang B, Liu J J 2011 Adv. Atmos. Sci. 28 207
[7] Wang Y F, Wang B, Fei J, Han Y Q, Ma G 2013 Acta Meteor. Sin. 27 415
[8] Zhong J, Fei J F, Huang S X, Du H D 2012 Acta Phys. Sin. 61 149203 (in Chinese) [钟剑, 费建芳, 黄思训, 杜华栋 2012 61 149203]
[9] Berger B W, Grisogono B 1998 Bound. Layer Meteorol. 87 363
[10] Masson V 2000 Bound. Layer Meteorol. 94 357
[11] Grimmond C S B, Oke T R 2002 J. Appl. Meteorol. 41 792
[12] Zhao M 1978 Adv. Atmos. Sci. 4 233
[13] Han Y Q, Zhong Z, Wang Y F, Du H D 2013 Acta Phys. Sin. 62 049201 (in Chinese) [韩月琪, 钟中, 王云峰, 杜华栋 2013 62 049201]
[14] Lee J S, Chang K S 1996 J. Proc. Cont. 6 2
[15] Du C L, Huang X Y, Yu X D 2005 Meteor. Mon. 31 23 (in Chinese) [杜川利, 黄向宇, 俞小鼎 2005 气象 31 23]
[16] Li S W, Shi J W, Zhang P 2008 J. Grey. Syst. 20 109
[17] Hall M C G 1986 J. Atmos. Sci. 43 2644
[18] Li J P, Chou J F 2003 Chin. J. Atmos. Sci. 27 653 (in Chinese) [李建平, 丑纪范 2003 大气科学 27 653]
[19] Chou J F, Gao J D 1995 Acta Meteor. Sin. 53 471 (in Chinese) [丑纪, 范郜吉东 1995 气象学报 53 471]
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[1] Chou J F, Li J P, Gao L 2006 Chin. Phys. B 15 882
[2] Wang T T, Li W L, Chen Z H, Miao L 2010 Chin. Phys. B 19 076401
[3] Lewis J M, Derber J C 1985 Tellus 37 309
[4] LeDemit F, Talagrand O 1986 Tellus 38 97
[5] Chu K K, Tan Z M, Ming X 2007 Adv. Atmos. Sci. 24 281
[6] Zhao J, Wang B, Liu J J 2011 Adv. Atmos. Sci. 28 207
[7] Wang Y F, Wang B, Fei J, Han Y Q, Ma G 2013 Acta Meteor. Sin. 27 415
[8] Zhong J, Fei J F, Huang S X, Du H D 2012 Acta Phys. Sin. 61 149203 (in Chinese) [钟剑, 费建芳, 黄思训, 杜华栋 2012 61 149203]
[9] Berger B W, Grisogono B 1998 Bound. Layer Meteorol. 87 363
[10] Masson V 2000 Bound. Layer Meteorol. 94 357
[11] Grimmond C S B, Oke T R 2002 J. Appl. Meteorol. 41 792
[12] Zhao M 1978 Adv. Atmos. Sci. 4 233
[13] Han Y Q, Zhong Z, Wang Y F, Du H D 2013 Acta Phys. Sin. 62 049201 (in Chinese) [韩月琪, 钟中, 王云峰, 杜华栋 2013 62 049201]
[14] Lee J S, Chang K S 1996 J. Proc. Cont. 6 2
[15] Du C L, Huang X Y, Yu X D 2005 Meteor. Mon. 31 23 (in Chinese) [杜川利, 黄向宇, 俞小鼎 2005 气象 31 23]
[16] Li S W, Shi J W, Zhang P 2008 J. Grey. Syst. 20 109
[17] Hall M C G 1986 J. Atmos. Sci. 43 2644
[18] Li J P, Chou J F 2003 Chin. J. Atmos. Sci. 27 653 (in Chinese) [李建平, 丑纪范 2003 大气科学 27 653]
[19] Chou J F, Gao J D 1995 Acta Meteor. Sin. 53 471 (in Chinese) [丑纪, 范郜吉东 1995 气象学报 53 471]
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