切变线

水汽图像上切变线水汽带比天气图上高原切变线形成反映提前，且切变线水汽带的变化对高原切变线活动有指示意义。

The formation of Plateau shear line vapour band on the vapour image appears earlier than the Plateau shear line on the synoptic map , which has the predictive meaning to the activity of Plateau shear line as well .

分析结果表明，高空南支槽、地面辐合线、850hPa西南急流和切变线，是这次强对流天气过程的主要影响系统；

Results show , it is the principle influencing systems that the upper trough , surface convergence line , The low level southwest jet and shear line .

一次高空槽在青藏高原上诱发切变线的Q矢量分析

A Q-vector analysis of the process of shear line on Qinghai-Xizang Plateau triggered from moving trough aloft

1998年7月20～23日（简称98.7）发生在武汉周边地区的特大暴雨过程与沿低涡切变线相继生成和强烈发展的MαCS及MβCS直接关联。

During the period of 20 ~ 23 July 1998 (" 98.7 " ), an extraordinary heavy rainstorm event occurred in Wuhan surrounding which was direct relationship with the successive generating and intensive developing M α CSand M β CS .

分析表明：在切变线云带上有11个β-中尺度对流云团发展，水平范围约100km，生命史约5h；

It suggests that there are 11 meso - β convective cloud cluster developed with 100 km in spatial scale and 5 h in time scale .

利用非静力中尺度模式系统（ARPS），对1998年7月20日至22日期间长江流域的低涡切变线及暴雨过程进行了模拟。

The low-level vortex and shear line and the accompanying severe heavy precipitation in July 1998 are successfully simulated by using non-hydrostatic mesoscale model system ( ARPS ) .

MαCS发生在低层切变线南侧的中尺度辐合线（或辐合中心）上，并在减弱阶段演变为明显的低涡结构；

The M α CS occurred over the mesoscale convergence line ( or convergence center ) located south of a shear line in the lower-level jet ( LLJ ) field during its occurrence and development and became a clear low vortex during its weakening and dissipative stage .

结果表明，MCC发生在较弱的斜压环境里，对流层低层有明显的天气系统如切变线、中尺度低涡，中层可以没有低压槽参与，高层则出现在反气旋环流里。

Results demonstrate that the MCC develops in a weak baroclinic environment , a 850 hPa horizontal wind shear line with a vortex dominated in the low levels and an anticyclone in upper levels , without baroclinic wave trough accompanying in midlevels .

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；

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 .

在850hPa图上，华南地区则出现较强的切变线环流。

Also they are all located in front of a trough . and there always appears a relatively strong shear line in South China on the 850 hpa chart .

夏季长江中、下游暴雨发生前下垫面地热场出现由深层向上的地热通量，当高空（850hPa）有切变线与地热场的高地热轴线相配合时，暴雨落在地热高值区；

It shows that there is a forerunner of torrential rain on the underlying heat field , that is the upward geothermal heat flux from deep layer to earth surface .

“98.7”特大暴雨过程与700hPa低涡切变线的强烈发展以及丰沛的水汽和强垂直运动密切相关。

The " 98.7 " extraordinary heavy rainfall event was in close relationship with the intensive development of a low vortex with shear line on 700 hPa and the abundant moisture as well as strong vertical motion .

强降水出现在700hPa、850hPa切变线之间及500hPa低槽前部，并与云顶亮温的发展变化趋势表现出相似性；

The strong rain appeared between the 700 hPa and 850 hPa shear lines where was in the front of 500 hPa trough-line , and the rainfall intensity had a good corresponding relationship with the brightness temperature of cloud top .

该过程与500hPa短波槽和700hPa低涡切变线以及沿切变线相继生成和强烈发展的β中尺度对流系统密切相关。

Analyses indicate this event was in close relationship with the short wave trough at 500 hPa and low vortex with shear line at 700 hPa as well as with successive generating and intensive developing of M β CS along the shear line .

对2002年6月8日发生在陕西佛坪的一次特大暴雨过程进行了综合分析，结果表明：500hPa槽前的中尺度切变线是直接影响暴雨产生的中α尺度系统；

Systematically analyses were carried out for an abrupt heavy rainstorm in Fuping of Shaanxi province on June 8 , 2002 . The results show that a meso-scale shear line lying in front of 500 hPa trough is the meso - α - scale system that causes the rainstorm .

影响准东西向切变线运动的一些因子分析

Analysis on the motion of QUASI-EAST-WEST direction wind shear line

这三条切变线清楚地显示出台风内部结构的不对称性。

Three shear lines show the asymmetry of typhoon internal structure clearly .

低层切变线是引发此次强降水的主要系统。

The under-layer shear line was the main system initiating the rainstorm .

青藏高原暴雨切变线特征个例分析

A case study of a shear line producing heavy rainfall on Qinghai-Xizang Plateau

一次新疆强切变线天气的分析

A Case Analysis of Severe Shear Line in Xinjiang

梅雨锋中尺度切变线雨带的动力结构分析

The dynamical structure of a mesoscale shear - line rain belt on Meiyu-front

04.12华北大到暴雪过程切变线的动力结构研究

The dynamical structure of snowstorm in Huabei during 04.12

切变线系统偏弱、位置偏北等，是造成初夏干旱的主要环流背景。

The system of shear lines was weaker and laid to the north .

切变线暴雨过程中湿位涡的中尺度时空特征

Temporal and spatial Mesoscale Characteristics of moisture potential vorticity in shear line heavy rain

江淮切变线形成过程的数值分析

Numerical analysis of the process of a low level shear line formation over China

台风螺旋云（雨）带与切变线

Typhoon spiral cloud bands and shear lines

总磁场和分磁场之间存在着依赖于磁路最短原则的切变线。

There is a shear line between the total magnetic field and the component magnetic field .

边界层参数化和湿过程对切变线低涡发展影响的中尺度模拟

Mesoscale Numerical Simulation of the Influence of PBL Parameterization and Moist Process on Development ofa Shear-Line Vortex

在切变线水汽带范围变宽时，高原切变线稳定；

When the shear line vapour band is broad , and the Plateau shear line is stable .

青藏高原上低槽与切变线动能收支的个例分析

The contrast analysis of kinetic energy budget for developing trough and shear line over the Qinghai-Xizang Plateau