设为首页
加入收藏
利用卡尔曼滤波校准方法估算区域降水量
RADAR RAINFALL CALIBRATION BY USING THE KALMAN FILTER METHOD
-
摘要: 该文根据卡尔曼滤波校准方法估算区域降水量的原理，利用“973”项目野外观测资料对2002年6月22日的一次降水过程进行了试验研究。结果表明：卡尔曼滤波校准方法能提高雷达定量估算区域降水量的精度，并能较好地反映雷达探测到的精细降水场结构；验证了随着观测次数的增加，卡尔曼滤波校准方法估算降水量的精度越来越高。Abstract: The Kalman Filter calibration method was tested by "973" project (Research on the Formation Mechanism and Prediction Theory of Severe Synoptic Disasters in China) field data—a rainfall case on June 22, 2002. The analysis of parameters impacting on the result which the Kalman Filter calibration method figures out is done. The result shows that the Kalman Filter calibration method can improve the accuracy of radar rainfall measurement well. With the increase of observing times, the value which the Kalman Filter calibration method figures out is more accurate
-
Key words:
- Kalman Filter;
- Rainfall measurement;
- Doppler radar
-
[1] Thomas T W, Edward A B, Sun Juanzhen, et al. Prediction of a flash flood in complex terrain. Part Ⅰ: A comparison of rainfall estimates from radar, and very short range rainfall simulations from a dynamic model and an automated algorithmic system. J Appl Meteor, 2000, 39(6):797~814. doi: 10.1175/1520-0450(2000)039<0797:POAFFI>2.0.CO;2 [2] David N Y, Thohas T W, Leavesley G H. Prediction of a flash flood in complex terrain. Part Ⅱ: A comparsion of flood discharge simulation using rainfall input from radar, a dynamic model, and an automated algorithmic system. J Appl Meteor, 2000, 39(6):815~825. doi: 10.1175/1520-0450(2000)039<0815:POAFFI>2.0.CO;2 [3] Limaye A S, Stellman K. Improving Flood Prediction Using Kalman Filter, Mesoscale Atmospheric Model Forecasts and Radar-based Rainfall Estimates. 16th Conf on Hydrology, Orlando, Florida: AMS, 2002.127~129. https://ams.confex.com/ams/pdfpapers/30978.pdf [4] 高山红, 吴增茂, 谢红琴.Kalman滤波在气象数据同化中的发展与应用.地球科学进展, 2000, 15(5):571~575. http://www.cnki.com.cn/Article/CJFDTOTAL-DXJZ200005014.htm [5] Hansen J A. Accounting for model error in ensemble-based state estimation and forecasting. Mon Wea Rev, 2002, 130:2373~2391. doi: 10.1175/1520-0493(2002)130<2373:AFMEIE>2.0.CO;2 [6] Burgers G, Van Leeuwen P J, Evensen G. Analysis scheme in the ensemble Kalman filter. Mon Wea Rev, 1998, 126: 1719~1924. doi: 10.1175/1520-0493(1998)126<1719:ASITEK>2.0.CO;2 [7] Houtekamer P L, Mitchell H L. Data assimilation using an ensemble Kalman filter technique. Mon Wea Rev, 1998, 126:796~811. doi: 10.1175/1520-0493(1998)126<0796:DAUAEK>2.0.CO;2 [8] Evensen G, Van Leeuwen P J. Assimilation of Geosat data for the Agulhas current using the ensemble Kalman filter with a quasigeostrophic model. Mon Wea Rev, 1996, 124:85~96. doi: 10.1175/1520-0493(1996)124<0085:AOGADF>2.0.CO;2 [9] 陆如华, 徐传玉, 张玲, 等.卡尔曼滤波的初值计算方法及其应用.应用气象学报, 1997, 8(1):34~43. http://qikan.camscma.cn/jams/ch/reader/view_abstract.aspx?file_no=19970105&flag=1 [10] 周筱兰, 张礼平.卡尔曼滤波方法在制作长期月平均气温预报中的应用.暴雨·灾害.北京:气象出版社, 1999. [11] 卢峰本.卡尔曼滤波在沿海冬半年风力预报中的应用.气象, 2002, 24(3):50~53. [12] 张培昌, 杜秉玉, 戴铁丕.雷达气象学.北京:气象出版社, 2001. [13] Wilso J W, Brandes E A. Radar measurement of Rainfall-A summary. BAMS, 1979, 60(9):1048~1058. doi: 10.1175/1520-0477(1979)060<1048:RMORS>2.0.CO;2 [14] Cain D E, Smith P L. Operational Adjustment of Radar Estimated Rainfall with Gage Data: A Statistical Evaluation. Preprints of 17th Radar Meteor Conf, Boston: AMS, 1976.533~538. [15] Ahnert P, Hudlow M, Johnson E, et al. Proposed "on-site" Precipitation Processing System for NEXRAD. Preprints of 21st Radar Meteor Conf, Boston: AMS, 1983. 378~385. [16] Hudlow M D, Greene D R, Ahnert P R, et al. Proposed Off-site Precipitation Processing System for NEXRAD. Preprints of 21st Radar Meteor Conf, Boston: AMS, 1983.394~403. [17] Ahnert P R, Hudlow M D, Johnson E R. Validation of the "on-site" Precipitation Process system for NEXRAD. Preprints of 22nd Radar Meteor Conf, Boston: AMS, 1984.192~201. [18] Ahnert P R, Krajewski W F, Johnson E R. Kalman Filter Estimation of Radar-rainfall Field Bias. Preprints of 23rd Radar Meteor Conf, Snowmass: AMS, 1986. JP33~JP37. [19] O′Bannon T, Ahnert P. A Study of the Precipitation Processing System on a Winter-type Oklahoma Rainstorm. Preprints of 23rd Radar Meteorology Conf, Boston: AMS, 1986. JP99~JP102. [20] Smith J A, Krajewski W F. Estimation of the mean field bias of radar-rainfall estimates. J Appl Meteor, 1991, 30:397~412. doi: 10.1175/1520-0450(1991)030<0397:EOTMFB>2.0.CO;2 [21] Dah-Syang Lin, Krajewski W F. Recursive Methods of Estimating Radar-rainfall Field Bias. Preprints of 24th Radar Meteor Conf, Boston: AMS, 1987. 648~651. [22] Harrison D L, Driscoll S J D, Kitchen M. Improving precipitation estimates from weather radar using quality control and correction techniques.Meteor Appl, 2000, 7(2):135~144. doi: 10.1017/S1350482700001468 [23] Rodriguez-Iturbe I, Mejia J. The design of rainfall networks in time and space. Water Resources Research, 1974, 10:731~728. -
下载:
图(8)
计量
- 摘要浏览量: 3925
- HTML全文浏览量: 676
- PDF下载量: 2657
- 被引次数: 0
