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In Part I, the digital filter weak constraint four-dimensional variational (4D-Var) data assimilation is implemented with different digital filter weight settings through two typhoon cases. The results show that the influence of the digital filter weight on typhoon track and intensity prediction is large, and how to choose an appropriate digital filter weight is important. In this paper, seven different initial time typhoon cases in 2010 are selected to analyze the effects of different digital filter weight settings on typhoon track and intensity prediction. Based on the track and intensity prediction information of the seven cases, and the three-hour pressure tendency information for the whole domain and the area with 800 km radius from the typhoon center, a method of choosing digital filter weight is proposed for typhoon initialization with bogus data assimilation. Also, the ordinary digital filter weight setting is proposed, which is 1000 and obviously different from the operational and storm cases weight setting.
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Keywords:
- digital filter weak constraint four dimensional variational data assimilation /
- digital filter weight chosen /
- typhoon initialization
[1] Gauthier P, Thepaut J N 2001 Mon. Wea. Rev. 129 2089
[2] Huang X Y, Xiao Q N, Barker D M, Zhang X, Michalakes J, Huang W, Henderson T, Bray J, Chen Y S, Ma Z Z, Dudhia J, Guo Y R, Zhang X Y, Won D J, Lin H C, Kuo Y H 2009 Mon. Wea. Rev. 137 299
[3] 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 物理学报 61 149203]
[4] Zhang W M, Cao X Q, Song J Q 2012 Acta Phys. Sin. 61 249202 (in Chinese) [张卫民, 曹小群, 宋君强 2012 物理学报 61 249202]
[5] Zhong J, Fei J F, Cheng X P, Sun Y M, Shi W 2014 Acta Phys. Sin. 62 119203 (in Chinese) [钟剑, 费建芳, 程小平, 孙一妹, 施威 2014 物理学报 62 119203]
[6] Zhang L, Huang S X, Shen C, Shi W L 2011 Chin. Phys. B 20 119201
[7] Zhang L, Huang S X, Shen C, Shi W L 2011 Chin. Phys. B 20 129201
[8] Zhong J, Huang S X, Du H D, Zhang L 2011 Chin. Phys. B 20 034301
[9] Zhong J, Huang S X, Fei J F, Du H D, Zhang L 2011 Chin. Phys. B 20 064301
[10] Peng S Q, Zou X 2002 Meteorol. Atmos. Phys. 81 237
[11] Peng S Q, Zou X 2010 J. Geophys. Res. 115 D23111
[12] Wang S C, Li Y, Zhang W M, Zhao J, Cao X Q 2011 Acta Phys. Sin. 60 099203 (in Chinese) [王舒畅, 李毅, 张卫民, 赵军, 曹小群 2011 物理学报 60 099203]
[13] Wee T K, Kuo Y H 2004 Mon. Wea. Rev. 132 543
[14] Wang W, Cindy B, Michael D, Jimy D, Dave G, Michael K, Kelly K, Lin H C, John M, Syed R, Zhang X 2012 ARW Version 3 Modeling System User's Guide (New York: National Center for Atmospheric Research) pp148-202
[15] Huang X G, Fei J F, Zhang G S, Lu H C 2004 J. Tropical Meteorol. 20 129 (in Chinese) [黄小刚, 费建芳, 张根生, 陆汉城 2004 热带气象学报 20 129]
[16] Zhong J, Fei J F, Cheng X P, Huang X G 2014 Sci. China Earth Sci.
[17] Xiao Q N, Chen L Q, Zhang X Y 2009 J. Appl. Meteor. Climat. 48 680
[18] Chen M, Huang X Y 2006 Mon. Wea. Rev. 134 1222
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[1] Gauthier P, Thepaut J N 2001 Mon. Wea. Rev. 129 2089
[2] Huang X Y, Xiao Q N, Barker D M, Zhang X, Michalakes J, Huang W, Henderson T, Bray J, Chen Y S, Ma Z Z, Dudhia J, Guo Y R, Zhang X Y, Won D J, Lin H C, Kuo Y H 2009 Mon. Wea. Rev. 137 299
[3] 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 物理学报 61 149203]
[4] Zhang W M, Cao X Q, Song J Q 2012 Acta Phys. Sin. 61 249202 (in Chinese) [张卫民, 曹小群, 宋君强 2012 物理学报 61 249202]
[5] Zhong J, Fei J F, Cheng X P, Sun Y M, Shi W 2014 Acta Phys. Sin. 62 119203 (in Chinese) [钟剑, 费建芳, 程小平, 孙一妹, 施威 2014 物理学报 62 119203]
[6] Zhang L, Huang S X, Shen C, Shi W L 2011 Chin. Phys. B 20 119201
[7] Zhang L, Huang S X, Shen C, Shi W L 2011 Chin. Phys. B 20 129201
[8] Zhong J, Huang S X, Du H D, Zhang L 2011 Chin. Phys. B 20 034301
[9] Zhong J, Huang S X, Fei J F, Du H D, Zhang L 2011 Chin. Phys. B 20 064301
[10] Peng S Q, Zou X 2002 Meteorol. Atmos. Phys. 81 237
[11] Peng S Q, Zou X 2010 J. Geophys. Res. 115 D23111
[12] Wang S C, Li Y, Zhang W M, Zhao J, Cao X Q 2011 Acta Phys. Sin. 60 099203 (in Chinese) [王舒畅, 李毅, 张卫民, 赵军, 曹小群 2011 物理学报 60 099203]
[13] Wee T K, Kuo Y H 2004 Mon. Wea. Rev. 132 543
[14] Wang W, Cindy B, Michael D, Jimy D, Dave G, Michael K, Kelly K, Lin H C, John M, Syed R, Zhang X 2012 ARW Version 3 Modeling System User's Guide (New York: National Center for Atmospheric Research) pp148-202
[15] Huang X G, Fei J F, Zhang G S, Lu H C 2004 J. Tropical Meteorol. 20 129 (in Chinese) [黄小刚, 费建芳, 张根生, 陆汉城 2004 热带气象学报 20 129]
[16] Zhong J, Fei J F, Cheng X P, Huang X G 2014 Sci. China Earth Sci.
[17] Xiao Q N, Chen L Q, Zhang X Y 2009 J. Appl. Meteor. Climat. 48 680
[18] Chen M, Huang X Y 2006 Mon. Wea. Rev. 134 1222
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