Using the daily rainfall data, 500 hPa synoptic map of 08:00 and 20:00 (Beijing time) and the Qinghai-Xizang Plateau(QXP) vortex and shearline yearbooks from 1998 to 2010, the activities of the plateau shearlines in the winter and summer-half years, and their influences on the rainfall in China, are analyzed with the statistical and synoptic methods. The results show that the plateau shearlines are mostly quasi-zonal shearlines during the summer and the winter half-year and eastern shearlines are the majority. The winter half-year plateau shearlines mostly appear in March and April, and one fifth of them can move out of the QXP in the month. The plateau shearlines in winter half-year are less and are about one fifth of the whole year number. But quasi-zonal shearlines with 24 h lifetime and quasi-longitudinal shearlines with 12 h lifetime can lead to middle event snow or rain in the QXP and nearby provinces. Especially the quasi-zonal shearlines with 24 h lifetime not only lead to the medium snow or rain in and near to the QXP, but also influences the far from the QXP and lead to medium- and heavy-rain there. Longer lifetime the plateau shearlines have in summer half-year, larger region and intensity of precipitation in and near to the QXP happens. Those quasi-longitudinal in the summer half-year with 24 h lifetime can cause the rainstorm in the QXP, medium rain in Gansu Province and little rain in Sichuan basin and Yunnan Province. And in more than half of the year, the shearline can cause medium or severe rain in Shanxi, Henan, Shanxi, Chongqing and Guizhou at least once a year. The quasi-zonal plateau shearlines, which last for more than 48 h, can cause rainstorm in the QXP, medium or severe rain in Gansu Province, the heavy rainstorm in Sichuan Basin and little rain in Yunnan Province. And in most of the year, one to three times the shearline can cause rainstorm or more in Guizhou, Hubei, Shanxi and Chongqing, some even can cause rainstorm or heavy rainstorm in Anhui, Jiangxi, Gangxi, Guangdong and Henan.
[1]马林, 张春梅, 赵春宁, 等. 青藏高原东部牧区春季雪灾天气的形成及其预报[J]. 自然灾害学报, 2003, 12(3): 61-68.
[2]徐建芬, 陶建红, 夏建平. 青藏高原切变线暴雪中尺度分析及其涡源研究[J]. 高原气象, 2000, 19(2): 187-197.
[3]许东蓓, 张铁军, 任余龙, 等. 2008年1月甘肃省连阴雪特征及成因分析[J]. 高原气象, 2009, 28(5): 1129-1139.
[4]薛智. 青藏高原切变线特征个例分析[J]. 气象学报, 1980, 38(2): 142-149.
[5]唐洪. 青藏高原夏季强降水过程分析[J]. 西藏科技, 2002(9): 51-55.
[6]卓嗄. 雅鲁藏布江中上游暴雨与旱涝及暴雨天气系统[J]. 西藏科技, 2006(2): 29-32.
[7]郁淑华. 长江上游暴雨对1998年长江洪峰影响的分析[J]. 气象, 2000, 26(1): 56-58.
[8]郁淑华, 何光碧, 滕家谟. 青藏高原切变线对四川盆地突发性暴雨影响的数值试验[J]. 高原气象, 1997, 16(3): 306-311.
[9]罗四维. 冬季我国高原东侧切变形成的分析[J]. 气象学报, 1963, 33(3): 305-319.
[10]尹道声. 论青藏高原中部的非绝热局地锋生[J]. 气象学报, 1979, 37(4): 16-24.
[11]徐国昌. 500毫巴高原切变线的天气气候特征[J]. 高原气象, 1984, 3(1): 36-40.
[12]乔全明, 谭海清. 夏季青藏高原500 hPa切变线的结构与大尺度环流[J]. 高原气象, 1984, 3(3): 50-57.
[13]青藏高原气象科学研究拉萨会战组著. 夏半年青藏高原500毫巴低涡切变线的研究[M]. 北京: 气象出版社, 1981: 1-122.
[14]王文, 程麟生.‘96.1’ 高原暴雪过程湿对称不稳定的数值研究[J]. 高原气象, 2000, 19(2): 129-140.
[15]王文, 程麟生. ‘96.1’ 高原暴雪过程三维条件对称不稳定的数值研究[J]. 高原气象, 2002, 21(3): 225-232.
[16]张小玲, 程麟生. ‘96.1’暴雪期中尺度切变线发生、 发展的动力诊断Ⅰ-涡度和涡度变率诊断[J]. 高原气象, 2000, 19(3): 285-294.
[17]郁淑华, 骆江. 青藏高原上低槽与切变线动能收支的个例分析[J]. 高原气象, 1993, 12(3): 251-256.
[18]郁淑华. 一次高空槽在青藏高原上诱发切变线的Q矢量分析[J]. 应用气象学报, 1994, 5(1): 109-113.
[19]鲍璋. 西藏高原切变线云系中雨以上降水的卫星云图分析[J]. 成都气象学院学报, 1990, 15(4): 15-20.
[20]何光碧, 师锐. 夏季青藏高原不同类型切变线的动力、 热力特征分析[J]. 高原气象, 2011, 30(3): 568-575.
[21]李跃清, 郁淑华, 彭骏, 等. 青藏高原低涡切变线年鉴-1998[Z]. 北京: 科学出版社, 2010: 1-124.
[22]李跃清, 郁淑华, 彭骏, 等. 青藏高原低涡切变线年鉴-1999[Z]. 北京: 科学出版社, 2010: 1-114.
[23]李跃清, 郁淑华, 彭骏, 等. 青藏高原低涡切变线年鉴-2000[Z]. 北京: 科学出版社, 2010: 1-80.
[24]李跃清, 郁淑华, 彭骏, 等. 青藏高原低涡切变线年鉴-2001[Z]. 北京: 科学出版社, 2010: 1-92.
[25]李跃清, 郁淑华, 彭骏, 等. 青藏高原低涡切变线年鉴-2002[Z]. 北京: 科学出版社, 2009: 1-99.
[26]李跃清, 郁淑华, 彭骏, 等. 青藏高原低涡切变线年鉴-2003[Z]. 北京: 科学出版社, 2009: 1-100.
[27]李跃清, 郁淑华, 彭骏, 等. 青藏高原低涡切变线年鉴-2004[Z]. 北京: 科学出版社, 2009: 1-119.
[28]李跃清, 郁淑华, 彭骏, 等. 青藏高原低涡切变线年鉴-2007[Z]. 北京: 科学出版社, 2010: 1-145.
[29]李跃清, 郁淑华, 彭骏, 等. 青藏高原低涡切变线年鉴-2008[Z]. 北京: 科学出版社, 2011: 1-139.
[30]彭广, 李跃清, 郁淑华, 等. 青藏高原低涡切变线年鉴-2009[Z]. 北京: 科学出版社, 2011: 1-163.
[31]屠妮妮, 何光碧. 两次高原切变线诱发低涡活动的个例分析[J]. 高原气象, 2010, 29(1): 90-98.
[32]师锐, 何光碧. 移出与未移出高原的高原切变线背景环流对比分析[J]. 高原气象, 2011, 30(6): 1453-1461.
[33]何光碧, 高文良, 屠妮妮. 2000-2007年夏季青藏高原低涡切变线观测事实分析[J]. 高原气象, 2009, 28(3): 549-555.
[34]李国平, 罗喜平, 陈婷, 等. 高原低涡中涡旋波动特征的初步分析[J]. 高原气象, 2011, 30(3): 553-558.
[35]郁淑华, 高文良, 彭骏. 青藏高原低涡活动及对我国影响的流统计分析[J]. 高原气象, 2012, 31(3): 594-604.
[36]郁淑华, 高文良. 1998年夏季两例青藏高原低涡结构特征的比较[J]. 高原气象, 2010, 29(6): 1357-1368.
[37]黄楚惠, 李国平, 牛金龙, 等. 一次高原低涡东移引发四川盆地强降的湿螺旋度分析[J]. 高原气象, 2011, 30(3): 1427-1438.
[38]宋雯雯, 李国平. 一次高原低涡过程的数值模拟与结构特征分析[J]. 高原气象, 2011, 30(2): 267-276.