Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Meteorological Science and Technology》 2018-05
Add to Favorite Get Latest Update

Application of Multi-Source Observation Data in Forecasting of an Extremely Heavy Rain Event

Duan Yuhui;Sun Yun;Zhang Nan;Jin Xiaoqing;Zhang Ye;Yang Xiaoliang;Kang Zengmei;Hebei Meteorological Observatory;Hebei Key Laboratory of Meteorology and Ecological Environment;Hebei Meteorological Service;  
Based on the unconventional observation data,such as wind profile data,microwave radiometer data,and VDRAS 5-km resolution data,a comparison analysis is conducted on the application of multi-source observation data in forecasting of a heavy rainstorm in July 2016.The results indicate that the wind profiles provided highly similar data with the VDRAS vertical wind field in the upper-level trough and surface cyclone precipitation periods of the weather process. Measurements from the micro-radiometer highly fitted those from the VDRAS observations,indicating the observational data from both instruments are credible.The fluctuation of the wind field at the edge of the wind profile layer was a good indicator for the timing prediction of high-intensity rainfall during the warm area before the front and upper-level trough precipitation processes.The low-level jet was directly related with the time period of surface cyclone precipitation.The rapid increase of the specific humidity was a good indication for correcting the short-duration and nowcasting precipitation.
【Fund】: 河北省科技计划项目(17275409D);; 中国气象局(CMAYBY2017-010);; 环渤海区域科技协同创新基金项目(QYXM201704);; 河北省气象局(17ky01)和河北省气象局强对流创新团队共同资助
【CateGory Index】: P458.121.1
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved