An Overview of Wintertime Snow Cover Characteristics over China and the Impact of Eurasian Snow Cover on Chinese Climate
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摘要: 该文首先回顾了有关中国冬季积雪的研究进展,包括中国冬季积雪的空间分布气候特征以及季节、年际和年代际变化,中国冬季降雪特征,气象因子对中国冬季积雪水量平衡的影响,外强迫和大气环流系统在积雪形成中的作用等。冬春季欧亚大陆积雪对同期和后期中国气候影响的相关研究说明与欧亚大陆积雪异常相关联的中国气候异常以及积雪通过改变土壤湿度、表面温度和辐射分布,引起大气环流异常,进而对中国气候产生影响的物理过程。应用美国环境预测中心 (NCEP) 第2版气候预测系统 (CFSv2) 的回报试验结果,对CFSv2在欧亚大陆积雪变化及其与中国气候关系的可预报性方面的分析表明,CFSv2能够较好地回报出春季欧亚积雪的年际和年代际变异及其与中国夏季降水之间的联系。文章最后提出了在积雪及其气候效应研究方面一些有待解决的问题。Abstract: The progress on researches concerning wintertime snow cover over China is reviewed in the first part of the article. This part includes the spatial climatological distribution of snow cover and its seasonal, interannual and decadal variability, features of wintertime snowfall, effects of meteorological factors on the snow mass balance, and roles played by external forcing and atmospheric circulation system in the formation of snow cover China. Then, researches on simultaneous and lagged impacts of wintertime and springtime Eurasian snow cover upon climate over China are summarized. It illustrates climate anomalies over China are in association with Eurasian snow cover anomalies, as well as related physical mechanisms. The Eurasian snow cover anomalies can alter the soil moisture, surface air temperature and net radiation, which trigger abnormal mid-latitude atmospheric circulations over the Eurasian continent and thus affect the climate over China. By applying hindcast results of the climate forecast system version 2 (CFSv2) of National Center for Environmental Prediction (NCEP), the predictability of Eurasian snow cover and its relations with climate over China is analyzed. It demonstrates that hindcasts of CFSv2 can well reproduce the springtime interannual and decadal variability of Eurasian snow cover and associated summer rainfall anomalies in China. Although many meaningful results have been obtained on the linkage of Eurasian snow cover with the climate variability over China, some questions still remain unsolved. In the end, some issues concerning the snow cover and its climate effect are listed, which need further investigation.
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Key words:
- China;
- snow cover;
- climate variability;
- Eurasian continent
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图 1 中国冬季雪量平衡各项在1979-2010年的气候平均值[44]
(a) 冬季雪水当量,(b) 秋末雪水当量,(c) 冬季降雪,(d) 积雪蒸发,(e) 积雪升华,(f) 积雪融化
Fig. 1 Climatological winter snow water equivalent (a), November snow water equivalent (b), winter snowfall (c), winter snow evaporation (d), winter snow sublimation (e) and winter snow melting (f) over China for 1979-2010(from reference [44])
图 2 1979—2004年春季欧亚大陆雪水当量与中国夏季降水奇异值分解 (SVD) 第1模态的左场 (a)、右场 (b) 和相应的标准化时间系数 (c) 及春季积雪时间序列回归得到的春季 (d) 和夏季 (e)500 hPa高度场 (单位:gpm)
(图 2d、图 2e中黄色和蓝色分别代表达到0.01和0.05显著性水平)[23]
Fig. 2 The leading SVD modes of spring Eurasian snow water equivalent (a), summer rainfall over China (b), and their normalized time series (c) for 1979-2004 with regressed 500 hPa geopotential height anomalies (unit:gpm) in spring (d) and summer (e) against the SVD time series of spring snow water equivalent, respectively
(yellow and blue areas in Fig. 2d, Fig. 2e represent anomalies exceeding 0.01 and 0.05 levels)(from reference [23])
图 3 1979—2004年中国春季降水 (a)、欧亚大陆春季雪水当量 (b) 的SVD第1模态和相应的标准化时间系数 (c) 以及由标准化的西伯利亚区域 (40°~50°N, 75°~96°E) 雪水当量回归得到的500 hPa位势高度 (d)、850 hPa位势高度 (等值线,单位:gpm) 和风场 (矢量)(e)
(阴影区表示相关系数和位势高度异常达到0.05显著性水平)[70]
Fig. 3 The leading SVD modes of the spring rainfall over China (a) and Eurasian snow water equivalent (b) as well as their normalized SVD (c) for 1979-2004 with regressed spring 500 hPa geopotential height anomalies (d) and 850 hPa geopotential height anomalies (the contour, unit:gpm) and wind anomalies (the vector)(e) against the normalized spring snow water equivalent time series averaged over Siberia area (40°-50°N, 75°-96°E), respectively
(dark areas in represent correlation coefficients and height anomalies exceeding 0.05 level)(from reference [70])
图 4 标准化的冬季 (1—3月) 欧亚大陆中高纬度地区 (55°~70°N, 0°~180°) 雪水当量时间序列 (a)、冬季雪水当量 (b)、700 hPa环流场 (c)、降水率 (d) 在积雪低指数年 (1999—2010年) 和高指数年 (1979—1998年) 的合成差[94]
Fig. 4 Time series of normalized Jan-Mar snow water equivalent averaged over high-latitude Eurasia (55°-70°N, 0°-180°E)(a) with differences in snow water equivalent (b), 700 hPa wind (c) and precipitation (d) between composites of low snow cover years of 1999-2010 and high snow cover years of 1979-1998(from reference [94])
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[1] Gutzler D S, Rosen R D.Interannual variability of wintertime snow cover across the Northern Hemisphere. J Climate, 1992, 5(12):1441-1448. doi: 10.1175/1520-0442(1992)005<1441:IVOWSC>2.0.CO;2 [2] Gong D Y, Wang S W, Zhu J H.East Asian winter monsoon and Arctic Oscillation. Geophys Res Lett, 2001, 28(10):2073-2076. doi: 10.1029/2000GL012311 [3] Wu B Y, Wang J.Winter Arctic Oscillation, Siberian High and East Asian Winter Monsoon. Geophys Res Lett, 2002, 29(19):3-1, doi: 10.1029/2002GL015373. [4] Bamzai A S.Relationship between snow cover variability and Arctic oscillation index on a hierarchy of time scales. Int J Climatol, 2003, 23(2):131-142. doi: 10.1002/(ISSN)1097-0088 [5] 龚道溢, 王绍武.近百年北极涛动对中国冬季气候的影响.地理学报, 2003, 58(4):559-568. doi: 10.11821/xb200304010 [6] Saito K, Yasunari T, Cohen J.Changes in the sub-decadal covariability between Northern Hemisphere snow cover and the general circulation of the atmosphere. Int J Climatol, 2004, 24:33-44. doi: 10.1002/(ISSN)1097-0088 [7] 陈文, 康丽华.北极涛动与东亚冬季气候在年际尺度上的联系:准定常行星波的作用.大气科学, 2006, 30(5):863-870. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK200605014.htm [8] 施能.近40年东亚冬季风强度的多时间尺度变化特征及其与气候的关系.应用气象学报, 1996, 7(2):175-182. http://www.cnki.com.cn/Article/CJFDTOTAL-YYQX602.006.htm [9] 高辉.东亚冬季风指数及其对东亚大气环流异常的表征.气象学报, 2007, 65(2):272-277. doi: 10.11676/qxxb2007.026 [10] Bader J, Mesquita M D S, Hodges K I, et al.A review on Northern Hemisphere sea-ice, storminess and the North Atlantic Oscillation:Observations and projected changes. Atmos Res, 2011, 101(4):809-834. doi: 10.1016/j.atmosres.2011.04.007 [11] Liu J P, Curry J A, Wang H J, et al.Impact of declining Arctic sea ice on winter snowfall. Proc Natl Acad Sci, 2012, 109(11):4074-4079. doi: 10.1073/pnas.1114910109 [12] Li F, Wang H J.Autumn sea ice cover, winter Northern Hemisphere annular mode and winter precipitation in Eurasia. J Climate, 2012, 26:3968-3981. https://www.researchgate.net/publication/275467949_Autumn_Sea_Ice_Cover_Winter_Northern_Hemisphere_Annular_Mode_and_Winter_Precipitation_in_Eurasia [13] Yang S.ENSO-snow-monsoon associations and seasonal-interannual predictions.Int J Climatol, 1996, 16:125-134. doi: 10.1002/(ISSN)1097-0088 [14] Dong B, Valdes P J.Modelling the Asian summer monsoon rainfall and Eurasian winter/spring snow mass. Quart J Royal Meteor Soc, 2006, 124(124):2567-2596. doi: 10.1002/qj.49712455203/abstract [15] Shaman J, Tziperman E.The effect of ENSO on Tibetan Plateau snow depth:A stationary wave teleconnection mechanism and implications for the South Asian Monsoons. J Climate, 2005, 18:2067-2079. doi: 10.1175/JCLI3391.1 [16] 穆松宁.冬季欧亚大陆雪盖面积变化与中国夏季气候异常的关系及其机理研究.北京:中国科学院大气物理研究所, 2008. [17] 孙照渤, 闵锦忠, 陈海山.冬季积雪的异常分布型及其与冬、夏大气环流的耦合关系.南京气象学院学报, 2000, 23(4):463-468. http://www.cnki.com.cn/Article/CJFDTOTAL-NJQX200004000.htm [18] 陈海山, 孙照渤.欧亚积雪异常分布对冬季大气环流的影响Ⅰ.观测研究.大气科学, 2003, 27(3):304-316. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK200303001.htm [19] 陈海山, 孙照渤.欧亚积雪异常分布对冬季大气环流的影响Ⅱ.数值模拟.大气科学, 2003, 27(5):848-860. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK200305005.htm [20] Gong G, Entekhabi D, Cohen J.Modeled Northern Hemisphere winter climate response to realistic Siberian snow anomalies. J Climate, 2003, 16(23):3917-3931. doi: 10.1175/1520-0442(2003)016<3917:MNHWCR>2.0.CO;2 [21] Gong G, Entekhabi D, Cohen J, et al.Sensitivity of atmospheric response to modeled snow anomaly characteristics. J Geophys Res, 2004, 109(6):471-475. https://www.researchgate.net/publication/251428612_Sensitivity_of_atmospheric_response_to_modeled_snow_anomaly_characteristics [22] 张人禾, 武炳义, 赵平, 等.中国东部夏季气候20世纪80年代后期的年代际转型及其可能成因.气象学报, 2008, 66(5):697-706. doi: 10.11676/qxxb2008.064 [23] Wu B Y, Yang K, Zhang R H.Eurasian snow cover variability and its association with summer rainfall in China. Adv Atmos Sci, 2009, 26(1):31-44. doi: 10.1007/s00376-009-0031-2 [24] 穆松宁, 周广庆.欧亚北部冬季增雪"影响"我国夏季气候异常的机理研究——陆面季节演变异常的"纽带"作用.大气科学, 2012, 36(2):297-315. doi: 10.3878/j.issn.1006-9895.2011.11015 [25] 左志燕, 张人禾.中国春季降水异常及其与热带太平洋海面温度和欧亚大陆积雪的联系.大气科学, 2012, 36(1):185-194. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK201201014.htm [26] Zuo Z Y, Zhang R H, Wu B Y, et al.Decadal variability in springtime snow over Eurasia:Relation with circulation and possible influence on springtime rainfall over China. Int J Climatol, 2012, 32(9):1336-1345. doi: 10.1002/joc.2355 [27] Robinson D A, Dewey K F.Recent variations in Northern Hemisphere snow cover. Geophys Res Lett, 1990, 17(10):1557-1560. doi: 10.1029/GL017i010p01557 [28] Armstrong B R L, Brodzik M J.Global Monthly EASE-Grid Snow Water Equivalent Climatology.National Snow and Ice Data Center, Boulder (Digital Media), 2010. http://nsidc.org/data/docs/daac/nsidc0271_ease_grid_swe_climatology.gd.html [29] Che TmLi X, Jin R, et al.Snow depth derived from passive microwave remote-sensing data in China. Annals Glaciology, 2008, 49:145-154. doi: 10.3189/172756408787814690 [30] Takala M, Luojus K, Pulliainen J, et al.Estimating northern hemisphere snow water equivalent for climate research through assimilation of space-borne radiometer data and ground-based measurements. Remote Sensing Environ, 2011, 115(12):3517-3529. doi: 10.1016/j.rse.2011.08.014 [31] 郭艳君, 翟盘茂, 李威.NOAA卫星遥感和常规观测中国积雪的对比研究.冰川冻土, 2004, 26(4):755-760. http://www.cnki.com.cn/Article/CJFDTOTAL-BCDT200406014.htm [32] 马丽娟, 秦大河.1957—2009年中国台站观测的关键积雪参数时空变化特征.冰川冻土, 2012, 34(1):1-11. http://www.cnki.com.cn/Article/CJFDTOTAL-BCDT201201002.htm [33] 张若楠, 张人禾, 左志燕.中国冬季积雪变异及其与北极涛动的联系.大气科学, 2015, 39(3):634-642. doi: 10.3878/j.issn.1006-9895.1405.14170 [34] 李培基, 米德生.中国积雪分布.冰川冻土, 1983, 5(4):9-18. http://www.cnki.com.cn/Article/CJFDTOTAL-NJQX201105014.htm [35] 王澄海, 王芝兰, 崔洋.40余年来中国地区季节性积雪的空间分布及年际变化特征.冰川冻土, 2009, 31(2):301-310. http://www.cnki.com.cn/Article/CJFDTOTAL-BCDT200902017.htm [36] 柯长青, 李培基.青藏高原积雪分布与变化特征.地理学报, 1998, 53(3):209-215. http://www.cnki.com.cn/Article/CJFDTOTAL-DLXB803.002.htm [37] 李培基, 曹梅盛.中国西部SMMR积雪图的修正.冰川冻土, 1992, 14(4):366-374. http://www.cnki.com.cn/Article/CJFDTOTAL-BCDT199204008.htm [38] 李培基.中国西部积雪变化特征.地理学报, 1993, 48(6):505-515. http://www.cnki.com.cn/Article/CJFDTOTAL-DLXB199306003.htm [39] Qin D H, Liu S Y, Li P J.Snow cover distribution: variability and response to climate change in western China. J Climate, 2006, 19(9):1820-1833. doi: 10.1175/JCLI3694.1 [40] 李培基.1951—1997年中国西北地区积雪水资源的变化.中国科学, 1996, 29(增刊Ⅰ):63-69. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK1999S1009.htm [41] Ding Y H, Sun Y, Wang Z Y, et al.Inter-decadal variation of the summer precipitation in China and its association with decreasing Asian summer monsoon.PartⅡ:Possible causes. Inter J Climatol, 2009, 29:1926-1944. doi: 10.1002/joc.v29:13 [42] 朱玉祥, 丁一汇.青藏高原积雪对气候影响的研究进展和问题.气象科技, 2007, 35(1):1-8. http://www.cnki.com.cn/Article/CJFDTOTAL-QXKJ200701000.htm [43] 王叶堂, 何勇, 侯书贵.2000—2005年青藏高原积雪时空变化分析.冰川冻土, 2007, 29(6):854-861. http://www.cnki.com.cn/Article/CJFDTOTAL-BCDT200706004.htm [44] Zhang R N, Zhang R H, Zuo Z Y, et al.Temporal and spatial features and inter-annual variability of wintertime snow mass balance over China. Int J Climatol, 2016, doi: 10.1002/joc.4599. [45] 杨琨, 薛建军.使用加密降雪资料分析降雪量和积雪深度关系.应用气象学报, 2013, 24(3):349-355. doi: 10.11898/1001-7313.20130311 [46] 孙秀忠, 罗勇, 张霞, 等.近46年来我国降雪变化特征分析.高原气象, 2010, 29(6):1594-1601. http://www.cnki.com.cn/Article/CJFDTOTAL-GYQX201006027.htm [47] 徐兴奎.1970—2000年中国降雪量变化和区域性分布特征.冰川冻土, 2011, 33(3):497-503. http://www.cnki.com.cn/Article/CJFDTOTAL-BCDT201103006.htm [48] 张若楠, 张人禾, 左志燕.中国冬季多种积雪参数的时空特征及差异性.气候与环境研究, 2014, 19(5):572-586. doi: 10.3878/j.issn.1006-9585.2013.13063 [49] Solomon S, Qin D, Manning M, et al.Climate Change 2007:The Physical Science Basis.Cambridge:Cambridge University Press, 2007:106. [50] 王会军, 贺圣平.我国东北冬季降雪的年代际增多及其与冬季风减弱的关系.科学通报, 2013, 58(8):629-633. http://www.cnki.com.cn/Article/CJFDTOTAL-KXTB201308004.htm [51] 李弘毅, 王建.积雪水文模拟中的关键问题及其研究进展.冰川冻土, 2013, 35(2):430-437. http://www.cnki.com.cn/Article/CJFDTOTAL-BCDT201302020.htm [52] 杨大庆, 张寅生.乌鲁木齐河流域山区冬季积雪蒸发观测的主要结果.冰川冻土, 1992, 14(2):122-128. http://www.cnki.com.cn/Article/CJFDTOTAL-BCDT199202004.htm [53] Li L, Pomeroy J W.Probability of occurrence of blowing snow. J Geophy Res Atmos, 1997, 102(18):21955-21964. doi: 10.1029/97JD01522/full#references [54] Essery R, Li L, Pomeroy J.A distributed model of blowing snow over complex terrain. Hydrological Processes, 1999, 13(14-15):2423-2438. doi: 10.1002/(ISSN)1099-1085 [55] 李弘毅, 王建, 郝晓华.祁连山区风吹雪对积雪质能过程的影响.冰川冻土, 2012, 34(5):1084-1090. http://www.cnki.com.cn/Article/CJFDTOTAL-BCDT201205008.htm [56] Cline D W.Snow surface energy exchanges and snowmelt at a continental, midlatitude alpine site. Water Resource Research, 1997, 33(4):689-701. doi: 10.1029/97WR00026 [57] Hood E, Williams M, Cline D.Sublimation from a seasonal snowpack at a contimental, midlatitude alpine site. Water Resource Research, 1999, 13(12-13):1781-1797. https://www.researchgate.net/publication/228785050_Sublimation_from_a_seasonal_snowpack_at_a_continental_mid-latitude_alpine_site [58] Pollard D.A parameterization for ice sheet ablation rate. Tellus, 1980, 32:384-388. [59] Ferranti L, Molteni F.Ensemble simulations of Eurasian snow-depth anomalies and their influence on the summer Asian monsoon. Quart J Roy Meteor Soc, 1999, 125:2597-2610. doi: 10.1002/(ISSN)1477-870X [60] Groisman P Y, Karl T R, Knight R W, et al.Changes of snow cover, temperature, and radiative heat balance over the Northern Hemisphere. J Climate, 1994, 7(11):1633-1656. doi: 10.1175/1520-0442(1994)007<1633:COSCTA>2.0.CO;2 [61] Zhang R H, Sumi A, Kimoto M.Impact of El Nio on the East Asia Monsoon:A diagnostic study of the '86/87 and '91/92 events. J Meteor Soc Japan, 1996, 74:49-62. https://www.researchgate.net/publication/258514352_Impact_of_El_Nino_on_the_East_Asian_Monsoon_A_diagnostic_study_of_the_%278687_and_%279192_events [62] Zhang R H, Sumi A, Kimoto M.A diagnostic study of the impact of El Nio on the precipitation in China. Adv Atmos Sci, 1999, 16:229-241. doi: 10.1007/BF02973084 [63] Zhang R H, Sumi A.Moisture circulation over East Asia during El Nio episode in northern winter, spring and autumn. J Meteor Soc Japan, 2002, 80:213-227. doi: 10.2151/jmsj.80.213 [64] 张庆云, 陶诗言, 彭京备.我国灾害性天气气候事件成因机理的研究进展.大气科学, 2008, 32(4):815-825. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK200804009.htm [65] 宗海锋, 张庆云, 布和朝鲁, 等.黑潮和北大西洋海温异常在2008年1月我国南方雪灾中的可能作用的数值模拟.气候与环境研究, 2008, 13(4):491-499. http://www.cnki.com.cn/Article/CJFDTOTAL-QHYH200804013.htm [66] 叶笃正.长期预报的一些物理因子.气象, 1975, 1(3):10-12. doi: 10.7519/j.issn.1000-0526.1975.03.006 [67] 陈兴芳, 宋文玲.冬季高原积雪和欧亚积雪对我国夏季旱涝不同影响关系的环流特征分析.大气科学, 2000, 24(5):585-592. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK200005001.htm [68] 陈兴芳, 宋文玲.欧亚和青藏高原冬春季积雪与我国夏季降水关系的分析和预测应用.高原气象, 2000, 19(2):214-224. http://www.cnki.com.cn/Article/CJFDTOTAL-GYQX200002010.htm [69] 吴统文, 钱正安.青藏高原冬春积雪异常与我国东部地区夏季降水关系的进一步分析.气象学报, 2000, 58(5):570-581. doi: 10.11676/qxxb2000.059 [70] 左志燕, 张人禾, 武炳义.1979~2004年中国大陆南方地区春季降水的年代际变化特征及其与欧亚大陆积雪的联系.中国科学, 2011, 41(11):1688-1696. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK201111014.htm [71] Zhang R H, Wu B Y, Han J P, et al.Effects on Summer Monsoon and Rainfall Change over China due to Eurasian Snow Cover and Ocean Thermal Conditions//Climate Change-Realities, Impacts over Ice Cap, Sea Level and Risks.Rijeka:InTech, 2013:227-250. [72] Yasunari T, Kitoh A, Tokioka T.Local and remote responses to excessive snow cover mass over Eurasia appearing in the northern spring and summer climate-A study with the MRI.GCM. J Meteor Soc Japan, 1991, 69(4):473-485. http://citeseerx.ist.psu.edu/viewdoc/bookmark?doi=10.1.1.464.7656&title=Local%20and%20remote%20responses%20to%20excessive%20snow%20mass%20over%20Eurasia%20appearing%20in%20the%20northern%20spring%20and%20summer%20climate–a%20study%20with%20the%20MRI%20GCM&site=delicious [73] Blanford H.On the connexion of the Himalaya snowfall with dry winds and seasons of drought in India. Proc R Soc Lond, 1884, 37:3-22. doi: 10.1098/rspl.1884.0003 [74] Zuo Z Y, Zhang R H, Wu B Y, et al.Decadal variability in springtime snow over Eurasia:Relation with circulation and possible influence on springtime rainfall over China. Int J Climatol, 2011, 32(9):1336-1345. https://www.researchgate.net/publication/230294238_Decadal_variability_in_springtime_snow_over_Eurasia_Relation_with_circulation_and_possible_influence_on_springtime_rainfall_over_China [75] 陈烈庭, 阎志新. 青藏高原冬春季积雪对大气环流和我国南方汛期降水的影响//水文气象预报讨论会文集 (第一集). 北京: 水利电力出版社, 1978: 185-194. [76] 陈烈庭, 阎志新. 青藏高原冬春季异常雪盖影响初夏季风的统计分析//中长期水文气象预报文集 (第二集). 长江流域规划办公室, 1981: 133-141. [77] 陈烈庭.青藏高原冬春季异常雪盖与江南前汛期降水关系的检验和应用.应用气象学报, 1998, 9(增刊Ⅰ):2-9. http://www.cnki.com.cn/Article/CJFDTOTAL-YYQX8S1.000.htm [78] 韦志刚, 罗四维, 董文杰, 等.青藏高原积雪资料分析及其与我国夏季降水的关系.应用气象学报, 1998, 9(增刊Ⅰ):39-46. http://www.cnki.com.cn/Article/CJFDTOTAL-YYQX8S1.005.htm [79] 吴统文, 钱正安, 李培基, 等.青藏高原多、少雪年后期西北干旱区降水的对比分析.高原气象, 1998, 17(4):364-372. http://www.cnki.com.cn/Article/CJFDTOTAL-GYQX804.003.htm [80] Zhang Y S, Li T, Wang B.Decadal change of the spring snow depth over the Tibetan Plateau:The associated circulation and influence on the East Asian summer monsoon. J Climate, 2004, 17(14):2780-2793. doi: 10.1175/1520-0442(2004)017<2780:DCOTSS>2.0.CO;2 [81] Wu B Y, Zhang R H, Wang B, et al.On the association between spring Arctic sea ice concentration and Chinese summer rainfall. Geophys Res Lett, 2009, 36:L09501. https://www.researchgate.net/publication/225782401_On_the_association_between_spring_Arctic_sea_ice_concentration_and_Chinese_summer_rainfall_A_further_study [82] 钱永甫, 张艳, 郑益群.青藏高原冬春季积雪异常对中国春夏季降水的影响.干旱气象, 2003, 21(3):1-7. http://www.cnki.com.cn/Article/CJFDTOTAL-GSQX200303001.htm [83] 左志燕, 张人禾.中国东部夏季降水与春季土壤湿度的联系.科学通报, 2007, 52(14):1722-1724. doi: 10.3321/j.issn:0023-074x.2007.14.021 [84] 李震坤, 武炳义, 朱伟军.春季欧亚积雪异常影响中国夏季降水的数值试验.气候变化研究进展, 2009, 5(4):196-201. http://www.cnki.com.cn/Article/CJFDTOTAL-QHBH200904005.htm [85] Bamzai A S, Shukla J.Relation between Eurasian snow cover, snow depth, and the Indian summer monsoon:An observational study. J Climate, 1999, 12(10):3117-3132. doi: 10.1175/1520-0442(1999)012<3117:RBESCS>2.0.CO;2 [86] 张顺利, 陶诗言.青藏高原积雪对亚洲夏季风影响的诊断及数值研究.大气科学, 2001, 25(3):372-390. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK200103008.htm [87] Chen L T, Wu R G.Interannual and decadal variations of snow cover over Qinghai-Xizang Plateau and their relationships to summer monsoon rainfall in China. Adv Atmos Sci, 2000, 17(17):18-30. http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQJZ200001001.htm [88] Wu R, Kirtman B P.Observed relationship of spring and summer East Asian rainfall with winter and spring Eurasian snow. J Climate, 2007, 20(20):1285-1304. https://www.deepdyve.com/lp/american-meteorological-society/observed-relationship-of-spring-and-summer-east-asian-rainfall-with-LEbEdOurL2 [89] 蔡学湛.青藏高原雪盖与东亚季风异常对华南前汛期降水的影响.应用气象学报, 2001, 12(3):358-367. http://qikan.camscma.cn/jams/ch/reader/view_abstract.aspx?file_no=20010347&flag=1 [90] 陆日宇.与华北地区春季降水量异常关联的大气环流异常.气候与环境研究, 2001, 6(4):400-408. http://www.cnki.com.cn/Article/CJFDTOTAL-QHYH200104003.htm [91] Morinaga Y, Tian S F, Shinoda M.Winter snow anomaly and atmospheric circulation in Mongolia. Int J Climatol, 2003, 23(13):1627-1636. doi: 10.1002/(ISSN)1097-0088 [92] Bulygina O N, Razuvaev V N, Korshunova N N.Changes in snow cover over northern Eurasia in the last few decades. Environ Res Lett, 2004, 4(4):940-941. https://www.researchgate.net/publication/231101026_Changes_in_snow_cover_over_Northern_Eurasia_in_the_last_few_decades [93] 朱玉祥, 丁一汇, 刘海文.青藏高原冬季积雪影响我国夏季降水的模拟研究.大气科学, 2009, 33(5):903-915. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK200905004.htm [94] Zuo Z Y, Yang S, Wang W, et al.Relationship between anomalies of Eurasian snow and southern China rainfall in winter. Environ Res Lett, 2011, 6(4):45402-45407, doi: 10.1088/1748-9326/6/4/045402. [95] Liu X, Yanai M.Influence of Eurasian spring snow cover on Asian summer rainfall. Int J Climatol, 2002, 22(9):1075-1089. doi: 10.1002/(ISSN)1097-0088 [96] Robock A, Mu M Q, Vinnikov K, et al.Land surface conditions over Eurasia and Indian summer monsoon rainfall. J Geophys Res, 2003, 108: 4131, doi: 10.1029/2002JD002286. [97] Kumar K K, Hoerling M, Rajagopalan B.Advancing Indian monsoon rainfall predictions. Geophys Res Lett, 2005, 32:L08704, doi: 10.1029/2004GL021979. [98] Kug J S, Kang I S, Choi D H.Seasonal climate predictability with tier-one and tier-two prediction systems. Clim Dyn, 2008, 31(4):403-416. doi: 10.1007/s00382-007-0264-7 [99] Mo K C, Shukla S, Lettenmaier D P, et al.Do climate forecast system (CFSv2) forecasts improve seasonal soil moisture prediction? Geophys Res Lett, 2012, 39:L23703, doi: 10.1029/2012GL053598. [100] Wang B, Ding Q H, Fu X H, et al.Fundamental challenge in simulation and prediction of summer monsoon rainfall. Geophys Res Lett, 2005, 32:L15711. doi: 10.1029/2005GL022734 [101] 李维京, 张培群, 李清泉, 等.动力气候模式预测系统业务化及其应用.应用气象学报, 2005, 16(1):1-11. doi: 10.11898/1001-7313.20050101 [102] 吴统文, 宋连春, 刘向文, 等.国家气候中心短期气候预测模式系统业务化进展.应用气象学报, 2013, 24(5):533-554. doi: 10.11898/1001-7313.20130503 [103] Saha S, Moorthi S, Pan H L, et al.The NCEP climate forecast system reanalysis. Bull Amer Meteor Soc, 2010, 91(8):1015-1057. doi: 10.1175/2010BAMS3001.1 [104] Saha S, Moorthi S, Wu X, et al.The NCEP climate forecast system version 2. J Climate, 2013, 27(6):2185-2208. [105] Zuo Z Y, Yang S, Zhang R H, et al.Response of summer rainfall over China to spring snow anomalies over Siberia in the NCEP CFSv2 reforecast. Quart J Roy Meteorol Soc, 2015, 141:939-944. doi: 10.1002/qj.2413 [106] He Q, Zuo Z Y, Zhang R H, et al.Prediction skill and predictability of Eurasian snow cover fraction in the NCEP Climate Forecast System version 2 reforecasts. Int J Climatol, 2016, doi: 10.1002/joc.4618. [107] Brodzik M, Armstrong R.Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent, Version 4.Boulder, Colorado USA.NASA National Snow and Ice Data Center Distributed Active Archive Center.2013, [DOI: http://dx.doi.org/10.5067/P7O0HG-JLYUQU] [108] Dash S K, Singh G P, Shekhar M S, et al.Response of the Indian summer monsoon circulation and rainfall to seasonal snow depth anomaly over Eurasia. Clim Dyn, 2004, 24(1):1-10. https://www.researchgate.net/publication/226380807_Response_of_the_Indian_summer_monsoon_circulation_and_rainfall_to_seasonal_snow_depth_anomaly_over_Eurasia [109] Dong S, Ding Y H.Decadal change in the correlation pattern between the Tibetan Plateau winter snow and the East Asian summer precipitation during 1979-2011. J Climate, 2013, 26(19):7622-7634. doi: 10.1175/JCLI-D-12-00587.1 [110] Zhang R H.Changes in East Asian summer monsoon and summer rainfall over eastern China during recent decades. Sci Bull, 2015, 60:1222-1224. doi: 10.1007/s11434-015-0824-x [111] Zhang R H.Natural and human-induced changes in summer climate over the East Asian monsoon region in the last half century:A review. Adv Clim Change Res, 2015, 6:131-140. doi: 10.1016/j.accre.2015.09.009 [112] 吴国雄, 李占清, 符淙斌, 等.气溶胶与东亚季风相互影响的研究进展.中国科学:地球科学, 2015, 45(11):1609-1627. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK201511001.htm