气象2017，Vol.43Issue(4)：460-467,8.DOI:10.7519/j.issn.1000-0526.2017.04.008
基于FLEXPART的稻纵卷叶螟迁飞路径及大气背景研究
Study on Immigration Path of Rice Leaf Roller Based on FLEXPART and Atmospheric Background
摘要
Abstract
The spatio-temporal distribution pattern of the rice leaf rollers was analyzed and the atmospheric circulation background in which the typical immigration process happened were studied.The model of FLEXPART-WRF was used to speculate the immigration path in order to illustrate the influence of atmospheric background on the path.The research results showed that (1) the bimodal type was the major type of the rice leaf rollers in 2008 and the most extensive serious immigration process was during the period from 15 to 18 July.(2) The representative station Huaiyin in Jiangsu Province was chosen to simulate the source by FLEXPART,and the immigration of the rice leaf rollers was from the middle of Jiangsu and the midwest of Anhui Province.(3) The synoptic situation including the distribution,movement and strength changes of weather system at 850 hPa isobaric surface played important transferring and controlling roles on the migration and landing of the rice leaf roller.The prevailing deflected-northward wind at 850 hPa isobaric surface was favorable for the northward migration of rice leaf roller.However,the prevailing deflected-southward wind at this height had no obvious influence on the southward migration.The zones with anticyclonic circulation in the wind field at 850 hPa isobaric surface were beneficial to the immigration and landing of the pest,and the cyclonic shear was beneficial to the emigrating of the pest.(4) The rainfall in the migrating paths of the rice leaf rollers played a critical role in the intensive landings of the pest.关键词
稻纵卷叶螟/FLEXPART模型/大气背景/迁飞路径Key words
rice leaf rollers/the FLEXPART model/atmospheric situation/immigration path分类
农业科技引用本文复制引用
刘维,蔡雪薇,刘垚,郭安红,王纯枝,陆明红,包云轩..基于FLEXPART的稻纵卷叶螟迁飞路径及大气背景研究[J].气象,2017,43(4):460-467,8.基金项目
国家气象中心青年基金项目(Q201610)和公益性行业(气象)科研专项(GYHY201306053)共同资助 （Q201610）
