辐合线 meaning in English
asymptote of convergence
convergence line
Examples
- The first can be called a typical huabei mcs , whose initial convections are arisen by terrain forced climb ; the second initial convections are arisen by boundary convergence lines in the afternoon , meantime the lower level cold air from huabei plain also contributes to their formation
第1次是比较典型的华北mcc中尺度对流复合体过程，它是由地形强迫抬升触发了初始对流。第2次初始对流是由午后的边界层辐合线触发的，从华北平原南下的浅薄冷空气也起了重要作用。 - Based on t213 and other observational datasets , a severe heavy rain occurred in changjiang - huaihe basins during 4 - 5 july 2003 is studied . the primary diagnostic analyses show that double or single block is the characteristics of the macroscale circulation in this rainfall process . the strong conflict of warm and cold mass , mesoscale convergence on meiyu front , shear line , and stably maintaining of high and low jets make for the rainfall
本文采用地面高空常规资料，每6h一次的降水资料，以及t213数值预报资料，对2003年7月4 - 5日发生在江淮地区的一次梅雨锋暴雨过程的影响系统及其可能机制进行了初步的诊断分析，发现，高纬双阻、单阻形势是这次暴雨过程发生的大尺度环流特征；冷暖空气的激烈交锋、梅雨锋上的中尺度辐合线、 700hpa 、 850hpa上的低涡、切变线以及稳定维持的高低空急流是导致这场暴雨的直接影响系统；该地区维持一个高能、饱和、潜在不稳定的环境，有利于特大暴雨的产生和维持。 - The main relative systems of heavy - hard rainfall in northeast plateau are western pacific subtropical high , south asia high , low latitude systems , upper level jet ( ulj ) , low level greater wind speed axes , westerly trough and plateau trough , low level vortex , cold frontal , occluded front in qinghai lake , mesoscale low pressure , heat low - pressure in qinghai , shear line and convergence line , mesoscale cloud cluster , etc . the west subsidiary model of south asia high is the main circulation type of heavy - hard rainfall in this area
3 、西太平洋副高、南亚高压、低纬系统、高空急流、低空大风速轴；西风槽和高原槽、低涡、冷锋、青海湖锢囚锋以及中尺度低压、青海热低压、切变线与辐合线、中尺度云团等系统是高原东北部地区大到暴雨的主要相关系统。 100hpa上的南亚高压中心强度加强，位置东西摆动预示高原地区将有降水产生，中心强度减弱，降水过程结束。南亚高压西部副型是高原东北部地区大到暴雨的主要流型。 - The model simulations indicate that the severe storm is occurred in the pattern high - level of northwest flow , the waterjumping downhill flow form taihang mountain is the key mechanism to initiate the convective , on the other hand , the terrain can induce unbalanced low - level flow , which play an importance role in generating the mesoscale gravity waves ( mgws ) by convergence and divergence in low - level troposphere
( 2 )太行山对华北强对流风暴的发生有重要作用。一方面，地形可引起边界层风场的变化，包括风垂直切变、下坡气流和中尺度辐合线，从而对风暴的启动、组织和移动发挥作用；另一方面，山脉背风波动和地形产生的不平衡气流，有利于中尺度重力波( mgws )的产生和维持，并对下游地区强对流天气的发展产生影响。