摘要
利用时空分辨率较高的中尺度气象数值模式模拟得到的边界层内的风温场，在国内首次推算了褐飞虱秋季在我国东部回迁的三维轨迹。结果表明三维轨迹揭示了褐飞虱秋季回迁方向是由东北向西南，迁飞时褐飞虱距地面高度是随时间波动变化的，三维轨迹能更好地描述褐飞虱迁飞的实际情况。
The three dimensional migration trajectories of N.Lugens were calculated with simulated three dimension wind fields data derived from a mesometeorological model. These trajectories were analyzed combined with the insect radar observed data, The results showed that: (1)The three dimensional trajectories revealed the migration direction of N.Lugens is from Northeast to Southwest; (2)When they fly, their heights of flight are varied with time; (3)The three dimensional trajectories are coloser to the facts of N.Lugens’s migration and flight than the conventional two dimensional trajectories.
出处
《中国农业气象》
CSCD
1997年第5期1-6,共6页
Chinese Journal of Agrometeorology
关键词
褐飞虱
迁飞
气象数值模拟
三维轨迹
N.Lugens’s migration
Numerical modeling of mesometeorology
Trajectory analysis
