研究生: |
李家輝 Lee, Jia-Huei |
---|---|
論文名稱: |
鳳凰颱風(2008)之數值模擬與研究 The Numerical Simulation and Study of Typhoon Fungwong (2008) |
指導教授: |
簡芳菁
Chien, Fang-Ching |
學位類別: |
碩士 Master |
系所名稱: |
地球科學系 Department of Earth Sciences |
論文出版年: | 2019 |
畢業學年度: | 107 |
語文別: | 中文 |
論文頁數: | 146 |
中文關鍵詞: | 颱風 、系集預報 、投落送 、資料同化 |
DOI URL: | http://doi.org/10.6345/THE.NTNU.DES.005.2019.B07 |
論文種類: | 學術論文 |
相關次數: | 點閱:119 下載:17 |
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本文使用EAKF(Ensemble Adjustment Kalman Filter)資料同化系統,針對鳳凰颱風(2008)進行數值模擬研究,透過投落送資料的同化進行分析,藉以了解同化投落送資料對模式後續的數值預報之影響。後續再利用EAKF系集預報的特性將系集成員分組,分別對臺灣降水與颱風路徑進行合成分析,藉由討論不同成員間的差異進一步了解鳳凰颱風在臺灣東北與西南部的降水成因。另外在研究中發現大多數系集成員之颱風路徑於登陸臺灣前有明顯南偏之情形,因此透過颱風路徑偏折角度的差異探討颱風路徑偏折之原因。
模擬結果顯示,同化投落送資料雖然在颱風最低海平面氣壓以及最大風速上的改善程度並不顯著,但在颱風路徑、颱風環流雨帶之結構以及臺灣降水上有顯著的改善。透過降水合成分析可以發現西行颱風於登陸前以及出海後對於臺灣降水的成因有些不同,登陸前之颱風路徑與降水有較高相關性,出海後則為颱風移速以及有無引進西南氣流與降水有較高相關性。後續透過路徑誤差合成分析可以再次驗證降水與颱風路徑高相關性。最後在分析颱風登陸前之南偏現象時,發現是由颱風中層環流的不對稱產生向南之分量,使得颱風路徑產生偏折。
林昀瑱,2008:臺美氣象先進資料同化與預報模式系統發展技術合作
協議-系及調整卡爾曼濾波(Ensemble Adjustment Kalman
Filter),中央氣象局出國報告。
林昀瑱、劉輝、馮欽賜,2010:「SoWMEX實驗EAKF系集資料同化系
統初步分析」,美華海洋大氣學會第五屆國際海洋大氣研討會,
交通部中央氣象局,203-208。
Aberson,S.D.,and J.L.Franklin,1999:Impact on hurricane
track and intensity forecasts of GPS dropwindsonde observation from the first-season flights of the NOAA Gulfstream-IV jet aircraft. Bull. Amer. Meteor. Soc., 80, 421-427.
Anderson, J. L., 2001: An ensemble adjustment Kalman filter for data assimilation. Mon. Wea. Rev., 129, 2884-2903.
Brand, S., and J. W. Blelloch, 1974: Changes in the characteristics of typhoon crossing the island of Taiwan. Mon. Wea. Rev., 102, 708-713.
Chang, C.-P., Y.-T. Yang, and h.-C. Kuo, 2013: Large
increasing trend of tropical cyclone rainfall in Taiwan and the roles of terrain. J. Climate, 26, 4138-4147.
Chen, C.-S., Y.-L. Chen, C.-L. Liu, P.-L. Lin, and W.-C. Chen, 2007: Statistics of heavy rainfall occurrences in Twaian. Wea. Forecastiong., 22, 981-1002.
Chen, C.-Y., Y.-L. Chen, and H. V. Nguyen, 2014: The spin-up of a cyclone vortex in a tropical cyclone initialization scheme and its impact on the initial TC structure. SOLA., 10, 93-97.
Chien, F.-C., Y.-C. Liu, and C.-S. Lee, (2008): Heavy rainfall and southwesterly flow after the leaving of Typhoon Mindulle(2004) from Taiwan. J. Meteor. Soc. Japan. Ser. II., 86, 17-41.
Epstein E. S., 1969: Stochastic dynamic prediction.
Tellus, Ser. A., 21, 739-759.
Evensen, G., 1994: Sequential data assimilation with a
nonlinear quasi-geostrophic model using Monte Carlo method to forecast error statistics. J. Geophys. Res., 99, 10143-10162.
Fang, X., Y.-h. Kuo, and A. Wang, 2011: The impact of
Taiwan topography on the predictability of Typhoon Morakot 's record-breaking rainfall: A high-resolution ensemble simulation. Wea. Forecasting, 26, 613-633.
Hsu, L.-h., h.-C. Kuo, and R. G. Fovell, 2013: On the
geographic asymmetry of typhoon translation speed across the mountainous island of Taiwan. J. Atmos.Sci., 70, 1006–1022.
Hsu, L.-h., S.-h. Su, R. G. Fovell, and h.-C. Kuo, 2018: On
typhoon track deflections near the east coast of Taiwan. Mon. Wea. Rev., 146,1495-1510.
Huang, Y.-h., C.-C. Wu, and Y, Wang, 2011: The influence of
island topography on typhoon track deflection. Mon. Wea. Rev., 139, 1708-1727.
Jian, G.-J., and C.-C. Wu, 2008: A numerical study of the track deflection of Supertyphoon Haitang(2005) prior to its landfall in Taiwan. Mon. Wea. Rev., 136, 598-615.
Lin, Y.-L., D. B. Ensley, S. Chiao, and C.-Y. Huang, 2002: Orographic influences on rainfall and track deflection associated with the passage of a tropical cyclone. Mon. Wea. Rev., 130, 2929-2950.
Nguyen, h. V., and Y.-L. Chen, 2011: high-resolution
initialization and simulations of Typhoon Morakot (2009). Mon. Wea. Rev., 139, 1463-1491.
Poterjoy, J., and F. Zhang, 2014: Predictability and
genesis of Hurricane Karl (2010) examined through the EnKF assimilation of field observations collected during PREDICT. J. Atmos. Sci., 71, 1260-1275.
Schlatter, T. W., F. h. Carr, R. h. Langland, R. E.
Carbone, N. A. Crook, R. W. Daley, J. C. Defber, and S. L. Mullen, 1999: A five-year plan for research related to the assimilation of meteorological data. NCAR Tech Note 443, 45.
Su, S.-h., h.-C. Kuo, L.-h. hsu, and Y.-T. Yang, 2012:
Temporal and spatial characteristics of typhoon extreme rainfall in Taiwan. J. Meteor. Soc. Japan, 90, 721–736.
Tuleya, R. E., and S. J. Lord, 1997: The impact of
dropwindsonde data on GDFL hurricane model forecasts using global analyses. Wea. Forecasting, 12, 307-323.
Wang, S.-Y., and T.-C. Chen, 2008: Measuring east Asian summer monsoon rainfall contributions by different weather systems over Taiwan. J. Appl. Meteor. Climatol., 47, 2068-2080.
Wu, C.-C., 2001: Numerical simulation of Typhoon Gladys(1994) and its interaction with Taiwan terrain using the GFDL hurricane model. Mon. Wea. Rev., 129, 1533-1549.
Wu, C.-C., K.-h. Chou, Y. Wang, and Y.-h. Kuo, 2007:
Tropical cyclone initialization and prediction based on four-dimensional variational data assimilation. J. Atmos. Sci., 63, 2383-2395.
Wu, C.-C., and Y.-H. Kuo, 1999: Typhoons affecting Taiwan-Current understanding and future challenages. Bull. Amer. Meteor. Soc., 80, 67-80.
Wu, C.-C., T.-H. Li, and Y.-H. Hung, 2015: Influence of mesoscale topography on tropical cyclone tracks: Futher examination of the channeling effect. J. Atmos. Sci., 72, 3032-3050.
Wu, C.-C., G.-Y. Lien, J.-h. Chen, and F. Zhang, 2010:
Assimilation of tropical cyclone track and structure based on the ensemble Kalman filter (EnkF). J. Atmos. Sci., 67, 3806–3822.
Wu, C.-C., T.-H. Yen, Y.-H. Kuo, and W. Wang, 2002: Rainfall simulation associated with Typhoon Herb(1996) near Taiwan. Part I:The topographic effect. Wea, Forecasting., 17, 1001-1015.
Xie, B., and F. Zhang., (2012): Impacts of typhoon track and island topography on the heavy rainfalls in Taiwan associated with Morakot(2009). Mon, Wea, Rev., 140, 3379-3394.
Yang, M.-J., D.-L. Zhang, and H.-L. Hung, 2008: A modeling study of Typhoon Nari(2001) at landfall. Part I: Topographic effects. J. Atmos. Sci., 65, 3095-3115.