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Convective initiation forecasting based on FY-2G geostationary satellite data |
Bu Maobin1,2, Bai Jie2, Zhou Zhuhua2, Fang Hanxian1 |
1.National University of Defense Technology,Changsha 410000; 2.Aeronautical Meteorology Chemical Defense Study of Air Force Equipment Research Institute,Beijing 100085; |
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Abstract Based on the eight-point method by Mecikalski and so on and the FY-2G geostationary satellite data,the convective initiation forecasting methods are being obtained by using multi-wavelet fusion,CCM technology,pyramidal matcher and area-overlapped method.The indicators from convective initiation forecasting and its thresholds have been modified by a series of experiments because of the differences of resolution and study areas between the FY-2G and GOES geostationary meteorological satellite.Then,two convective weather events in Beijing regions are studied in the convective initiation forecasting.The comparative analysis is taking out between forecasting results and Doppler weather radar,which shows that the convective initiation forecasting method would forecast convective initiation process 30-40 min ahead in Beijing regions,indicating the effectiveness and feasibility of the algorithm and providing theoretical support for short-term catastrophic weather warnings.
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Received: 14 December 2016
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[1] |
BONELLI P,MARCACCI P.Thunderstorm nowcasting by means of lightning and radar data:algorithms and applications in northern Italy[J].Natural Hazards & Earth System Sciences,2008,8(5):1187-1198.
|
[2] |
VILA D A,MACHADO L A T,LAURENT H,et al.Forecast and tracking the evolution of cloud clusters (ForTraCC) using satellite infrared imagery:methodology and validation[J].Weather & Forecasting,2008,23(2):233-245.
|
[3] |
CARVALHO L M V,JONES C.A satellite method to identify structural properties of mesoscale convective systems based on the maximum spatial correlation tracking technique (MASCOTTE).[J].Journal of Applied Meteorology,2001,40(10):1683-1701.
|
[4] |
MECIKALSKI J R,BEDKA K M.Forecasting convective initiation by monitoring the evolution of moving cumulus in daytime GOES imagery[J].Monthly Weather Review,2006,134(134):49-78.
|
[5] |
WALKER J R,MACKENZIE W M J,MECIKALSKI J R,et al.An enhanced geostationary satellite-based convective initiation algorithm for 0-2-h nowcasting with object tracking[J].Journal of Applied Meteorology & Climatology,2012,51(51):1931-1949.
|
[6] |
许锐.基于卫星数据的对流初生自动识别研究[D].中国海洋大学,2009.
|
[7] |
刘京华,王彬,韩雷,等.京津地区一次强对流天气的初生预警技术研究[J].北京大学学报(自然科学版),2012,48(01):42-46.
|
[8] |
刘亚彬,刘健文,刘玉玲.基于卫星资料的对流初生预警技术[C].中国气象学会年会,2013.
|
[9] |
宋珍妮.基于网格的FY2C卫星对流初生预警[J].科技信息,2014,(05):76-77.
|
[10] |
ROBERTS R D,RUTLEDGE S.Nowcasting storm initiation and growth using GOES-8 and WSR-88D data[J].Weather & Forecasting,2003,18(4):562-584.
|
[11] |
INOUE T.An instantaneous delineation of convective rainfall area using split window data of NOAA-7 AVHRR[J].Journal of the Meteorological Society of Japan,1987,65(3):469-481.
|
[12] |
张永生,刘军,巩丹超.高分辨率遥感卫星应用:成像模型、处理算法及应用技术[M].北京:科学出版社,2014.
|
|
|
|