westerly trough

基本解釋

If the easterly is decreased with the height, so in the vertical shear of basic air flow is westerly one the bad weather is observed to the east of the trough lines.
若東風(fēng)隨高度減弱的地區(qū)，基本氣流的垂直切變?yōu)槲黠L(fēng)，則壞天氣區(qū)在槽線以東。
After storm's entering westerly trough, the subtropical cyclone's reintensification was related to the high potential vortex's downward transmission from stratosphere.
風(fēng)暴完全并入西風(fēng)槽后，變性后的溫帶氣旋再次加強(qiáng)與平流層高位渦的向下輸送有關(guān)。
The contribution of various weather systems to precipitation varies in different seasons, and the rainfall and the number of rainy days induced by the westerly trough are the greatest.
不同的天氣系統(tǒng)在不同季節(jié)對(duì)降水的貢獻(xiàn)有所不同，其中西來槽類的降雨量和降雨日數(shù)均居首位，開展人工增雨催化作業(yè)機(jī)會(huì)最多；