By using the NCEP/NCAR reanalysis data, the anomalous features of the northeast cold vortex and relationship between it and rainfall in the Huaihe River valley in summer from 1960 to 2009 was analyzed. It was found that stronger northeast cold vortex possibly related to more rainfall in the Huaihe River, and vice versa. 2003 was chose as a strong northeast cold vortex year, and a heat source was artificially added in the numerical studies. As a result of that, different southeast airflow occurred in high levels, and difference northwest airflow in low levels. This circulation situation was not conducive to high-level cold air and the low-level warm and humid air joined over the Huaihe River valley, therefore the precipitation over the Huaihe River valley deceased. The formation mechanism of rainfall reaction over the Huaihe River valley in the northeast cold vortex was found that it was abnormal warm in the Northeast-the Korean Peninsula-the ocean east of Japan in strong NECVI years, which made more obvious sea-land thermal contrast in the 35°-N50°N and caused abnormal summer monsoon circulation systems. The anomalies resulted in abnormal more precipitation over the Huaihe River valley, and vice versa.
[1]王慧, 王谦谦. 近49年来淮河流域降水异常及其环流特征[J]. 气象科学, 2002, 22(2):149-158.
[2]魏凤英, 张婷. 淮河流域夏季降水的振荡特征及其与气候背景的联系[J]. 中国科学(D辑), 2009, 39(10):1360-1374.
[3]陶诗言, 卫捷, 张小玲. 2007年梅雨锋降水的大尺度特征分析[J]. 气象, 2008, 34(4):3-15.
[4]刘还珠, 赵声蓉, 赵翠光, 等. 2003 年夏季异常天气与西太副高和南亚高压演变特征的分析[J]. 高原气象, 2006, 25(2):169-178.
[5]郑媛媛, 张雪晨, 朱红芳, 等. 东北冷涡对江淮飑线生成的影响研究[J]. 高原气象, 2014, 33(1):261-269, doi:10.7522/j.issn.1000-0534.2013.00005.
[6]毕宝贵, 章国材, 李泽椿. 2003年淮河洪涝与西太副高异常及成因的关系[J]. 热带气象学报, 2004, 20(5):505-514.
[7]吴迪, 楚志刚, 闫立奇. 东北冷涡发展过程的位涡收支分析[J]. 高原气象, 2015, 34(1):103-112, doi:10.7522/j.issn.1000-0534.2013.00121.
[8]张庆云, 陶诗言. 亚洲中高纬度环流对东亚夏季降水的影响[J]. 气象学报, 1998, 56(2):199-211.
[9]Li J P, Wang J. A modified zonal index and its physical sense[J]. Geophys Res Lett, 2003, 30(12), 1632, doi:10. 1029/2003GL017441.
[10]Ju J H, Lu J M, Cao J, et al. Possible impacts of the Arctic Oscillation on the interdecadal variation of summer monsoon rainfall in East Asia[J]. Adv Atmos Sci, 2005, 22(1):39-48.
[11]何金海, 吴志伟, 江志红, 等. 东北冷涡的"气候效应"及其对梅雨的影响[J]. 科学通报, 2006, 51(23):2803-2809.
[12]苗春生, 吴志伟, 何金海. 北半球环状模(NAM)、东北冷涡与前汛期华南旱涝[J]. 热带气象学报, 2006, 22(6):594-599.
[13]朱其文, 黄秀娟, 刘实. 东北冷涡大型环流演变特征以及系统配置关系的研究[C]. 东北冷涡研究文集. 沈阳:辽宁出版社, 1997:14-29.
[14]周长艳, 蒋兴文, 李跃清, 等. 高原东部及邻近地区空中水汽资源的气候变化特征[J]. 高原气象, 2009, 28(1):55-63.
[15]孙力. 东北冷涡持续活动的分析研究[J]. 大气科学, 1997, 21(3):297-307.
[16]Horel J D. A rotated principal component analysis of the interannual variability of the northern hemisphere 500 mb height field[J]. Mon Wea Rev, 1981, 109(10):2080-2092.
[17]袁文平, 周广胜. 标准化降水指标与Z指数在我国应用的对比分析[J]. 植物生态学报, 2004, 28(4):523-529.
[18]张强, 鞠笑生, 李淑华. 三种干旱指标的比较和新指标的确定[J]. 气象科技, 1998(2):48-52.
[19]王芝兰, 王劲松, 李耀辉, 等. 标准化降水指数与广义极值分布干旱指数在西北地区应用的对比分析[J]. 高原气象, 2013, 32(3):839-847, doi:10.7522/j.issn.1000-0534.2012.00077.
[20]Sun Z, Rikus L. Improved application of exponential sumfitting transmissions to inhomogeneous atmosphere[J]. J Geophys Res, 1999, 104:6291-6303.
[21]Wang Y, Sen O L, Wang B. A highly resolved regional climate model (IPRC-RegCM) and its simulation of the 1998 severe precipitation events over China. Part I:Model description and verification of simulation[J]. J Climate, 2003, 16:1721-1738.
[22]Wang Y, Xu H, Xie S P, et al. Regional model simulations of marine boundary-layer clouds over the Southeast Pacific off South America. Part I:Control experiment[J]. Mon Wea Rev, 2004, 132(1):274-296.
[23]Wang Y, Xu H, Xie S P. Regional model simulations of marine boundary-layer clouds over the Southeast Pacific off South America. Part II:Sensitivity experiments[J]. Mon Wea Rev, 2004, 132(11):2650-2668.
[24]Wang Y, Xie S P, Wang B, et al. Large-scale atmospheric forcing by Southeast Pacific boundary-layer clouds:A regional model study[J]. J Climate, 2005, 18:934-951.
[25]李超, 徐海明, 朱素行, 等. 江南春雨形成机制的数值模拟[J]. 高原气象, 2010, 29(1):99-108.
[26]Small R J, Xie S P, Wang Y. Numerical simulation of atmospheric response to Pacific tropical instability waves[J]. J Climate, 2003, 16, 3722-3737.
[27]Wang B, Kang I K, Lee J Y. Ensemble simulations of Asian-Australian monsoon variability by 11 AGCMs[J]. J Climate, 2004, 17:803-818.
[28]Xu H, Wang Y, Xie S P. Effects of the Andes on eastern Pacific climate:A regional atmospheric model study[J]. J Climate, 2004, 17:589-602.
[29]Xu H, Xie S P, Wang Y, et al. Effects of Central American mountains on the eastern Pacific winter ITCZ and moisture transport[J]. J Climate, 2005, 18:3856-3873.
[30]Reynolds R W, Rayner N A, Smith T M, et al. An improved in situ and satellite SST analysis for climate[J]. J Climate, 2002, 15:1609-1625.
[31]自勇, 许吟隆, 傅云飞. GPCP 与中国台站观测降水的气候特征比较[J]. 气象学报, 2007, 1(65):63-74.
[32]吕少宁, 文军, 刘蓉. 中国大陆地区不同降水资料的适用性及其应用潜力[J]. 高原气象, 2011, 30(3):628-640.
[33]张立祥, 李泽椿. 东北冷涡研究概述[J]. 气候与环境研究, 2009, 14(2):218-228.