降水区 meaning in Chinese
precipitation area
Examples
- The elements of vorticity , divergence , specific humidity , moisture flux divergence and k index etc . were benefited to the form and development of storm rainfall over the rainfall region
降水区上空的涡度、散度、比湿、水汽通量散度、 k指数等要素有利于暴雨的形成和发展。 - Heavy rainfall occurred in the warm area , and maximum rainfall lay in the windward slope where the width of raindrop size distribution was b roadened and sometimes it was bimodal spectrum . the shape of rain band in cold area was zonal , and the area of rain band was small
暖区有明显的强降水中心，雨强极大值出现在山区迎风坡，降水雨滴谱谱宽较大，有时滴谱呈双峰型分布；冷区降水区常呈带状分布，雨区范围大，雨滴谱较窄，雨滴谱为单峰型。 - The analysis of the large - scale synoptic situation shows that strong precipitation is closely related to the explosion of monsoon and the intensification of cross - equatorial flow which bring a lot of vapor and meet with cold masses at the eastern of northwest district on 8th , june causing extremely heavy rainfall ; that subtropical high - level jet at 200hpa , subtropical high at 500hpa and low - level jet at 850hpa are the weather backgrounds favorable to strong precipitation ; that the pattern of eastern highs and western lows and the establishment of a low - level jet and the coupling between upper - and low - level patterns that determine that the rain occurred in the east of the northwest china ( on average , this is the rainy season for the south of china , but not for the northwest china ) ; that water vapor comes from southerly and easterly flow which converge at the eastern of northwest district with convergence mainly in lower levels and pbl ; that the high value of the whole - level apparent heat source < q1 > is near the area of large rainfall in the direction of northeasterly - southwesterly agreeable to shear line very well and the condensation latent heat releasing is main heat source with vertical advection item playing key role in q1 and q2 ; that there is a vertical secondary circulation crossing low - lever jet whose ascending branch is at the area of large rainfall ; that the construction of convection instability and conditional symmetry instability results that there is not only deep thermal instability , but also moisture influx and triggering mechanism of thermal instability causing strong torrential rain
作为对比，本文还对2002年6月24 - 25日发生在北京地区的强地形雨进行了分析，并讨论陕南、北京地区两地暴雨的异同点以及地形作用的共性和个性，为两地暴雨预报提供有益的参考，得出了一些很有意义的结果： 1大尺度环流背景分析表明： ( 1 ) “ 02 . 6 ”强降水与6月上旬越赤道气流和季风爆发密切相关，携带大量水汽的偏南气流与冷空气于6月8日交汇在西北地区东部，导致了这次强降水的发生； ( 2 ) 200hpa的副热带西风急流、 500hpa副高以及850hpa的低空急流的配置非常有利于本文分析之陕西强降水的发展与维持。大尺度形势分析表明，东高西低形势场、低空急流的建立和高低空形势的配置决定了这场降雨出现在西北地区东部。与暴雨区相联系，存在一支横越低空急流的经向垂直环流，暴雨区处于该垂直环流的上升支； ( 3 )偏南和偏东气流水汽通道在西北地区东部交汇，水汽的辐合积聚主要在对流层低层和行星边界层内完成； ( 4 )整层的视热源< q _ 1 >高值区在暴雨区附近呈东北-西南向分布，与切变线走向非常一致，降水产生的凝结潜热释放是强降水区大气的主要热源。 - ( 2 ) the increase of rainfall is closely associated with the increase of the disturbance wind which often can be found before the increase of rainfall , so the increase of the nonlinear subcritical symmetric instability can make the rainfall increase . ( 3 ) heavy precipitation often occurs between the south of axis of upper jet at 200hpa and the north of axis of low jet at 850hpa
( 3 )降水区和暴雨中心主要位于200hpa高空急流轴南侧和85ohpa低空急流轴北侧之间;非线性亚临界对称不稳定与高空急流关系密切，它可能触发高空急流核的形成;它与低空急流关系也很密切，它的出现可能引起低空急流的出现。 - Heavy precipitation often forms in the place between the source of high - disturbance wind field at 200hpa , especially of low - disturbance wind field at 850hpa . ( 2 ) the temporal and spatial scale about e - reflection index of nonlinear subcritical symmetric instability disturbance is 5 - 8hours and 200 - 300km respectively
非线性亚临界对称不稳定使线性对称稳定的大气变为不稳定。降水区和暴雨中心主要位于高层200hpa和中层500hpa扰动风场极大值南侧与低层850hpa扰动风场极大值北侧之间。