The Temporal and Spatial Distribution of Seasonal Dry- Wet Changes over the Northwestern China: Based on PDSI
Received date: 2007-05-15
Revised date: 2007-07-05
Online published: 2007-11-25
Supported by
National Natural Science Foundation of China, No.40671191; No.90502008; Innovation Team Project of NSFC, No.40421101; Program for New Century Excellent Talents in Universities, Ministry of Education, No.NCET-05-0888; Chinese 111 Project, No.B06026
Using global Palmer drought severity index (PDSI) database, the seasonal and annual PDSI mean values of 56 grid points covering the period 1953-2003 over northwestern China is analyzed by rotated experience orthogonal function (REOF). The results show that the seasonal and annual means display similar anomaly regions, and furthermore there are five main anomaly regions in the northwestern China based on the annual PDSI mean, i.e., the northern and southern parts of Xinjiang, northern part of plateau, western part of Inner Mongolia and eastern part of northwestern China. The opposite changes of dry-wet conditions are discovered after comparing the curves of feature point series and binomial fit between the eastern and western parts of the northwestern China: The western part of the northwestern China influenced by westerly, a trend of wetting gradually occurred since 1980. On the contrary, a trend of drying gradually occurred in the eastern part of the northwestern China which is mainly influenced by Asian monsoon, and especially in summer and autumn, there is notable trend of drying over the southeastern part of the northwestern China. The northwestern China is obviously affected by westerly, Asian monsoon and Tibetan Plateau. There are differences among the responses of the dry-wet conditions to the global warming in different regions.
Key words： northwestern China; REOF; PDSI; westerly; monsoon; dry-wet condition
ZHANG Yong, CHEN Fahu, GOU Xiaohua, JIN Linya, TIAN Qinhua,WANG Yousheng, PENG Jianfeng . The Temporal and Spatial Distribution of Seasonal Dry- Wet Changes over the Northwestern China: Based on PDSI[J]. Acta Geographica Sinica, 2007 , 62(11) : 1142 -1152 . DOI: 10.11821/xb200711003
[1] Gong Daoyi, Wang Shaowu. Structure of the zonal-mean circulation over the Northern Hemisphere and its impact on climate of China in winter. Scientia Geographica Sinica, 2001, 21(2): 108-112.
[龚道溢, 王绍武. 北半球冬季纬向平均 环流的结构及对我国气候的影响. 地理科学, 2001, 21(2): 108-112.]
[2] Tang Maocang, Bai Chongyuan, Feng Song et al. Climate abrupt change in the Qinghai-Xizang Plateau in recent century and its relation to astronomical factor. Plateau Meteorology, 1998, 17(3): 250-257.
[汤懋苍, 白重瑗, 冯松等. 本世纪 青藏高原气候的三次突变及与天文因素的相关. 高原气象, 1998, 17(3): 250-257.]
[3] Wang Keli, Jiang Hao, Zhao Hongyan. Advection and convergence of water vapor transport over the Northwest China. Advances in Water Science, 2006, 17(2): 164-169.
[王可丽, 江灏, 赵红岩. 中国西北地区水汽的平流输送和辐合输 送. 水科学进展, 2006, 17(2): 164-169.]
[4] IPCC. Climate Change 2001: The Science Basis. Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge: Cambridge University Press, 2001. Chapter 2.
[5] Shi Yafeng, Shen Yongping, Li Dongliang et al. Discussion on the present climate change from warm-dry to warm-wet in Northwest China. Quaternary Sciences, 2003, 23(2): 152-164.
[施雅风, 沈永平, 李栋梁等. 中国西北气候由暖干向 暖湿转型的特征和趋势探讨. 第四纪研究, 2003, 23(2): 152-164.]
[6] Wang Shaowu, Dong Guangrong. The environment characteristics and its evolution in western China. In: Qin Dahe (ed.). The Assessment of Environmental Evolution in Western China (Vol. 1). Beijing: Science Press, 2002. 49-61.
[ 王 绍武,董光荣. 中国西部环境特征及其演变. 见: 秦大河主编. 中国西部环境演变评估(第一卷) . 北京: 科学出版社, 2002. 49-61.]
[7] Wang Baoling, Yu Yaxun. Study on the temperature fluctuation from monthly to seasonal scale in Northwest China. Gansu Meteorology, 2000, 18(1): 6-9.
[王宝灵, 俞亚勋. 西北地区月季气温变化研究. 甘肃气象, 2000, 18(1): 6-9.]
[8] Ren Zhaoxia, Yang Dayuan. Study on the division and trends of temperature variation in northwest arid area of China in recent 50 years. Journal of Arid Land Resources and Environment, 2006, 20(1): 99-103.
[任朝霞, 杨达源. 近50a 西北 干旱区气温分区及其变化趋势研究. 干旱区资源与环境, 2006, 20(1): 99-103.]
[9] An Wenzhi, Zhu Lingmin, Zhou Wenqiang et al. Analysis on characteristics and change patterns of precipitation in Northwest China. Agricultural Research in the Arid Areas, 2006, 24(4): 194-199.
[安文芝, 祝玲敏, 周文强等. 西北地 区降水特征及变化规律分析. 干旱地区农业研究, 2006, 24(4): 194-199.]
[10] Guo Jiangyong, Li Yaohui. Climatic characteristics of summer precipitation in northwestern China. Arid Zone Research, 2006, 23(3): 489-494.
[郭江勇, 李耀辉. 中国西北地区夏季降水的气候特征. 干旱区研究, 2006, 23(3): 489-494.]
[11] Yu Shuqiu, Lin Xuechun, Xu Xiangde. The climatic change in Northwest China in recent 50 years. Climatic and Environmental Research, 2003, 8(1): 9-18.
[于淑秋, 林学椿, 徐祥德. 我国西北地区近50 年降水和温度的变化. 气 候与环境研究, 2003, 8(1): 9-18.]
[12] Jin Liya, Li Jing, Wang Xin et al. The temporal and spatial distribution of surface dry-wet conditions over northwestern China in recent 50 years. Acta Geographica Sinica, 2004, 59(6): 847-856.
[靳立亚, 李静, 王新等. 近50 年来中国西 北地区干湿状况时空分布. 地理学报, 2004, 59(6): 847-856.]
[13] Zhang Tianfeng, Wang Jingsong, Guo Jiangyong. Analysis on the change of aridity index in Northwest China in autumn. Arid Zone Research, 2007, 24(1): 87-92.
[张天峰, 王劲松, 郭江勇. 西北地区秋季干旱指数的变化特征. 干 旱区研究, 2007, 24(1): 87-92.]
[14] Yang Jinhu, Yang Qiguo, Yao Yubi et al. Drought index in summer season of Northwest China. Resources Science, 2006, 28(3): 17-22.
[杨金虎, 杨启国, 姚玉璧等. 中国西北夏季干旱指数研究. 资源科学, 2006, 28(3): 17-22.]
[15] Palmer W C. Meteorological Drought. Weather Bureau Res. Paper 45. U.S. Department of Commerce: Washington, DC, 1965. 58.
[16] Gedalof Z, Peterson A C et al. Atmospheric, climatic, and ecological controls on extreme wildfire years in the Northwestern United States. Ecological Applications, 2005, 15(1): 154-174.
[17] Szép I J, Mika J, Dunkel Z. Palmer drought severity index as soil moisture indicator: Physical interpretation, statistical behaviour and relation to global climate. Physics and Chemistry of the Earth, 2005, 25(1-3): 231-243.
[18] Shabbar A, Skinner W. Summer drought patterns in Canada and the relationship to global sea surface temperatures. Journal of Climate, 2004, 17(14): 2866-2880.
[19] Edward R Cook, Connie A Woodhouse, C Mark Eakin et al. Long-term aridity changes in the western United States. Science, 2004, 26: 1015-1018.
[20] Dai Aiguo, Kevin E Trenberth. Global variations in droughts and wet spells: 1900-1995. Geophysical Research Letters, 1998, 25(17): 3367-3370.
[21] Dai Aiguo, Kevin E Trenberth, Qian Taotao. A global dataset of Palmer drought severity index for 1870-2002: Relationship with soil moisture and effects of surface warming. Journal of Hydrometeorology, 2004, 5(6): 1117-1130.
[22] Wei Jie, Tao Shiyan, Zhang Qingyun. Analysis of drought in northern China based on the Palmer severity drought index. Acta Geographica Sinica, 2003, 58(suppl.): 91-99.
[ 卫捷, 陶诗言, 张庆云. Palmer 干旱指数在华北干旱分析中 的应用. 地理学报, 2003, 58(增刊): 91-99.]
[23] Wei Jie, Ma Zhuguo. Comparison of Palmer drought severity index, percentage of precipitation anomaly and surface humid index. Acta Geographica Sinica, 2003, 58(suppl.): 117-124.
[卫捷, 马柱国. Palmer 干旱指数、地表湿润指数 与降水距平的比较. 地理学报, 2003, 58(增刊): 117-124.]
[24] Zou X K, Zhai P M, Zhang Q. Variations in droughts over China: 1951-2003. Geophys. Res. Lett., 2005, 32, L04707, doi: 10.1029/2004GL021853.
[25] Li Jinbao, Chen Fahu, Edward R Cook et al. Drought reconstruction for north central China from tree rings: The value of the Palmer drought severity index. Int. J. Climatol., 2006. Published online in Wiley InterScience (www. interscience.wiley.com). DOI: 10.1002/joc.1450.
[26] Li X, Gou E, Cook R et al. Tree-ring based drought reconstruction for the central Tien Shan area in Northwest China. Geophys. Res. Lett., 2006, 33, L07715, doi:10.1029/2006GL025803.
[27] Wu Hongbao, Wu Lei. Methods for Diagnosing and Forecasting Climate Variability. Beijing: China Meteorological Press, 2005.
[吴洪宝, 吴蕾. 气候变率诊断和预测方法. 北京: 气象出版社, 2005.]
[28] Huang Yuxia, Li Dongliang, Wang Baojian et al. Analyses on temporal-spatial features of annual precipitation in Northwest China in 1961-2000. Plateau Meteorology, 2004, 23(2): 245-252.
[黄玉霞, 李栋梁, 王宝鉴等. 西北地区近 40 年年降水异常的时空特征分析. 高原气象, 2004, 23(2): 245-252.]
[29] Huang Jiayou. Analysis of temporal and spatial characteristics for temperature and precipitation in summer of China. Scientia Atmospherica, 1991, 15(3): 124-132.
[黄嘉佑. 我国夏季气温、降水场的时空特征分析. 大气科学, 1991, 15 (3): 124-132.]
[30] Wang Xiaochun, Wu Guoxiong. Regional characteristics of summer precipitation anomalies over China identified in a spatial uniform network. Acta Meteorologica Sinica, 1996, 54 (3): 324-332.
[王晓春,吴国雄. 利用空间均匀网格对中 国夏季降水异常区域特征的初步分析. 气象学报, 1996, 54 (3): 324-332.]
[31] Wang Xiurong, Xu Xiangde, Pang Xin. Analysis of summer precipitation time and spatial features in Northwest China. Scientia Meteorologica Sinica, 2002, 22(4): 402-409.
[王秀荣, 徐祥德, 庞昕. 西北地区夏季降水异常的时空特征分 析. 气象科学, 2002, 22(4): 402-409.]
[32] Alley W M. The Palmer drought severity index: Limitations and assumptions. Journal of Climate and Applied Meteorology, 1984, 23: 1100-1109.
[33] Karl T R, Knight R W. Atlas of Monthly Palmer Hydrological Drought Indices (1931-1983) for the Contiguous United States. Historical Climatology Series 3-7, National Climatic Data Center, Asheville, NC, 1985.
[34] Xu Xihui. Analysis and study on the satellite cloud pictures of rainfall trace in Taklamakan Desert. Science in China, (Series B), 1995, 25(3): 324-328.
[徐希慧. 塔克拉玛干沙漠雨迹卫星云图分析与研究. 中国科学(B 辑), 1995, 25(3): 324-328.]
[35] Yu Yaxun, Wang Jingsong, Li Qingyan. Spatial and temporal distribution of water vapor and its variation trend in atmosphere over Northwest China. Journal of Glaciology and Geocryology, 2003, 25(2): 149-156.
[俞亚勋, 王劲松, 李 青燕. 西北地区空中水汽时空分布及变化趋势分析. 冰川冻土, 2003, 25(2): 149-156.]
[36] Wang H J. The weakening of the Asian monsoon circulation after the end of 1970's. Adv. Atmos. Sci., 2001, 18(3): 376-386.
[37] Jiang Dabang, Wang Huijun. Natural interdecadal weakening of East Asian summer monsoon in the late 20th century. Chinese Science Bulletin, 2005, 20: 2256-2262.
[姜大膀, 王会军. 20 世纪后期东亚夏季风年代际减弱的自然属性. 科学通报, 2005, 20: 2256-2262.]
[38] Jin Liya, Fu Jiaolan, Chen Fahu. Spatial and temporal distribution of water vapor and its relationship with precipitation over Northwest China. Journal of Lanzhou University (Natural Sciences), 2006, 42: 1-6.
[靳立亚, 符娇兰, 陈发虎. 西 北地区空中水汽输送时变特征及其与降水的关系. 兰州大学学报(自然科学版), 2006, 42: 1-6.]
[39] Wang Suichan, Li Dongliang, Wang Qianqian. Analysis on the climatic characteristics of the precipitation in northeastern side of Tibetan Plateau in summer. Arid Meteorology, 2005, 23(2): 13-18.
[王遂缠, 李栋梁, 王谦谦. 青 藏高原东北侧夏季降水的气候特征分析. 干旱气象, 2005, 23(2): 13-18.]
[40] Niu Tao, Chen Longxun, Wang Wen. REOF analysis of climatic characteristics of winter temperature and humidity on Xizang-Qinghai Plateau. Journal of Applied Meteorological Science, 2002, 13(5): 560-570.
[牛涛, 陈隆勋, 王文. 青藏 高原冬季平均温度、湿度气候特征的REOF 分析. 应用气象学报, 2002, 13(5): 560-570.]
[41] Li Dongliang, Xie Jinnan, Wang Wen. A study of summer precipitation features and anomaly in Northwest China. Scientia Atmospherica Sinica, 1997, 21(3): 331-340.
[李栋梁, 谢金南, 王文. 中国西北夏季降水特征及其异常研究. 大气科学, 1997, 21(3): 331-340.]
[42] Mann M E, Lees J. Robust estimation of background noise and signal detection in climatic time series. Climatic Change, 1996, 33: 409-445.
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