近44 年来青藏高原夏季降水的时空分布特征
收稿日期: 2007-06-27
修回日期: 2007-08-03
网络出版日期: 2007-09-25
基金资助
中国科学院西部行动计划项目“三江源区生态—生产功能区的区划及其评估研究” (KZCX2-XB2-06-03)
Temporo-spatial Distribution of Summer Precipitation over Qinghai-Tibet Plateau during the Last 44 Years
Received date: 2007-06-27
Revised date: 2007-08-03
Online published: 2007-09-25
Supported by
CAS action-plan for West Development, KZCX2-XB2-06-03
利用1961-2004 年青藏高原97 个站点的夏季逐日降水数据，通过累积距平、相关分析、回归分析、经验正交函数分解、功率谱方法等，结合GIS 的空间分析功能，分析了夏季 降水的时空分布特征。结果表明：在青藏高原年降水量比较少的地区，夏季降水占全年降水的比例较高，夏季降水与全年降水的相关性也较强；夏季降水相对变率最大的地区位于青藏 高原西北的最干旱地区，最小的地区是三江源区；夏季降水趋势增加和减少的站点分别为54 个和43 个，通过较显著检验的站点占总数的18.6%；在2000m 以下的站点中，海拔和夏季降水气候倾向率存在较强的正相关，相关度达0. 604 (显著性0.01)；1961-1983 年和1984-2004 年两个时间段相比，除了3000~3500m 海拔范围外，其余海拔范围夏季降水气候倾向率都表现为增加；夏季降水可大致分为三种类型场：高原东南部类型场、高原东北部类型场和三江 源类型场，高原东南部类型场和高原东北部类型场表现出南北变化相反的降水特点，分界线大致沿着35oN 线；在90%的置信概率下，三种类型场分别表现出5.33 年、21.33 年和2.17 年的潜在周期；4500 m 以上海拔范围的站点夏季降水周期通过很显著检验(α = 0.01)，站点海拔和降水周期存在-0.626 的高相关度；在三江源地区，3500 m 以上的站点夏季降水周期随海拔升高而减小，3500 m 以下的夏季降水周期随海拔高度升高而增加。
卢鹤立, 邵全琴, 刘纪远, 王军邦, 陈卓奇 . 近44 年来青藏高原夏季降水的时空分布特征[J]. 地理学报, 2007 , 62(9) : 946 -958 . DOI: 10.11821/xb200709006
The summer day-by-day precipitation data of 97 meteorological sites on the Qinghai-Tibet Plateau from 1961 to 2004 were selected to analyse the temporo-spatial distribution using accumulated variance, correlation analysis, regression analysis, empirical orthogonal function, power spectrum function and spatial analysis tools of GIS. The result showed that summer precipitation occupied a relatively high proportion in the area with less annual precipitation on the Qinghai-Tibet Plateau and the correlation between summer precipitation and annual precipitation was strong. The altitude of these stations or points and summer precipitation slope presented stronger positive correlation below 2000 m, with correlation value up to 0.604 and significance of 0.01. Summer precipitation slopes disparity between the periods 1961-1983 and 1984-2004 at five altitude scopes (2000-2500 m, 2500-3000 m, 3500-4000 m, 4000-4500 m and above 4500 m) were above zero and accounted for 71.4% of the total. Using empirical orthogonal function, summer precipitation could be roughly divided into three precipitation pattern fields: the southeast Plateau pattern field, the northeast Plateau pattern field and the Three Rivers' Headstream Regions pattern field. The former two presented a reverse spatial distribution value from the north to the south and the reversal line is along 35oN. The potential cycles of the three pattern fields were 5.33a, 21.33a and 2.17a respectively, tested by the confidence probability of 90%.
[1] Tang Maocang, Li Cunqiang. On the facts of that the Qinghai-Xizang Plateau was the source region of climatic variation. The Proceedings of the First Symposium on the Qinghai-Xizang Plateau. Beijing: Science Press, 1992. 42-48.
[汤懋苍, 李存强. 关于“青藏高原是气候启动区”的分析事实. 中国青藏高 原研究会第一届学术讨论会论文集. 北京: 科学出版社, 1992. 42-48.]
[2] Yao Tandong, Liu Xiaodong, Wang Ninglian. Climatic change range problems on Qinghai-Xizang Plateau. Chinese Science Bulletin, 2000, 45(1): 98-106.
[姚檀栋, 刘晓东, 王宁练. 青藏高原地区的气候变 化幅度问题. 科学通报, 2000, 45(1): 98-106.]
[3] Feng Song, Tang Maocang, Wang Dongmei. New evidences of that the Qinghai-Tibet Plateau was the source region of climatic variation. Chinese Science Bulletin, 1998, 43(6): 633-636.
[冯松, 汤懋苍, 王冬 梅. 青藏高原是我国气候变化启动区的新证据. 科学通报, 1998, 43(6): 633-636.]
[4] Sun Honglie. Formation and Evolution of the Qinghai-Xizang Plateau. Shanghai: Shanghai Science and Technology Press, 1996. 168-192.
[孙鸿烈. 青藏高原的形成演化. 上海: 上海科学技术出版社, 1996. 168-192.]
[5] Pan Baotian, Li Jijun. Qinghai-Tibetan Plateau: A driver and ampilfer of the global climatic change. Journal of Lanzhou University (Natural Sciences), 1996, 32(1): 108-115.
[潘保田, 李吉均. 青藏高原: 全球 气候变化的驱动机与放大器. 兰州大学学报(自然科学版), 1996, 32(1): 108-115.]
[6] Tang Maocang, Cheng Guodong, Lin Zhenyao. Contemporary Climatic Variations over Qinghai-Xizang Plateau and Their Influence on Environments. Guangzhou: Guangdong Science & Technology Press, 1998. 121-139.
[汤懋苍, 程国栋, 林振耀. 青藏高原近代气候变化及对环境的影响. 广州: 广东科技出版社, 1998. 121 -139.]
[7] Liu Xiaodong, Hou Ping. Relationship between the climatic warming over the Qinghai-Xizang Plateau and its surrounding areas in recent 30 years and the elevation. Plateau Meteorology, 1998, 3(3): 245-249.
[刘晓 东, 侯萍. 青藏高原及其邻近地区近30 年气温变暖与海拔高度的关系. 高原气象, 1998, 3(3): 245-249.]
[8] Liu Xiaodong, Ma Zhuguo. An important cause leading to short-term climatic variation in China: The change in the surface albedo in Tibetan Plateau. Journal of Tropical Meteorology, 1996, 12(3): 240-245.
[刘晓东, 马柱国. 中国短期气候变化的一个重要原因. 热带气象学报, 1996, 12(3): 240-245.]
[9] Liu Yu, An Zhisheng, Ma Haizhou et al. Precipitation change based on tree ring data in Dulan, Qinghai since 850 A.D. and the relationship between precipitation change and Northern Hemisphere temperature. Science in China (Series D), 2006, 36(5): 461-471.
[刘禹, 安芷生, 马海州等. 青海都兰地区公元850 年 以来树轮记录的降水变化及其与北半球气温的联系. 中国科学(D 辑), 地球科学, 2006, 36(5): 461-471.]
[10] Yang Xuchao, Zhang Yili, Zhang Wei et al. Climate change in Mt. Qomolangma region in China during the last 34 years. Acta Geographica Sinica, 2006, 61(7): 687-696.
[杨续超, 张镱锂, 张玮等. 珠穆朗玛 峰地区近34 年来气候变化. 地理学报, 2006, 61(7): 687-696.]
[11] Du Jun. Climatic trend of rainfall over Tibetan Plateau from 1971 to 2000. Acta Geographica Sinica, 2004, 59(3): 375-382.
[杜军. 西藏高原降水变化趋势的气候分析. 地理学报, 2004, 59(3): 375-382.]
[12] Ye Duzheng, Gao Youxi et al. (eds.). Qinghai-Tibetan Plateau Aerography. Beijing: Science Press, 1979. 49-61.
[叶笃正, 高由禧等编著. 青藏高原气象学. 北京: 科学出版社, 1979. 49-61.]
[13] Feng Song. Synthetical analysis of Qinghai-Tibetan climate changes from decade to thousand scale and its reasons. Lanzhou Plateau Atmosphere Physics Research Institute of CAS Doctor's Degree Thesis, 1999. 11-23.
[冯松, 青藏高原十到千年尺度气候变化的综合分析及原因探讨. 中国科学院兰州高原大气物理 研究所博士论文, 1999. 11-23.]
[14] Wu Shaohong, Yin Yunhe, Zheng Du et al. Climate changes in the Tibetan Plateau during the last three decades. Acta Geographica Sinica, 2005, 60(1): 3-11.
[吴绍洪, 尹云鹤, 郑度等. 青藏高原近30 年气候 变化趋势. 地理学报, 2005, 60(1): 3-11.]
[15] Chen Shenbin, Liu Yunfeng, Axel Thomas. Climatic change on the Tibetan Plateau: Potential evapotranspiration trends from 1961-2000. Climatic Change, 2006, 76: 291-319.
[16] Lin Zhenyao, Zhao Xinyi. The spatial characteristics of air temperature and precipitation changes over the Qinghai-Tibetan Plateau. Science in China (Series D), 1996, 26(4): 354-358.
[林振耀, 赵昕奕. 青藏高原 气温降水变化的空间特征. 中国科学(D 辑), 1996, 26(4): 354-358.]
[17] Cai Ying. Interdecadal climate variations of Qinghai-Tibetan Plateau. Lanzhou Plateau Atmosphere Physics Research Institute of CAS Master's Degree Thesis, 1998. 22-45.
[蔡英. 青藏高原气候的年代际变 化. 中国科学院兰州高原大气物理研究所硕士论文, 1998. 22-45.]
[18] Wang Shaowu. Patterns of summer rainfall in eastern China. Quarterly Journal of Applied Meteorology, 1998, 9(suppl.): 66-74.
[王绍武. 中国东部夏季降水型的研究. 应用气象学报, 1998, 9(增刊): 66-74.]
[19] Huang Jiayou. Statistic Analysis and Forecast Methods in Meteorology. Beijing: China Meteorological Press, 2000. 135-139.
[黄嘉佑. 气象统计分析与预报方法. 北京: 气象出版社, 2000. 135-139.]
[20] Chen Longxun, Shao Yongning, Zhang Xiaofang et al. Preliminary analysis of climate changes in China in recent 40 years. Quarterly Journal of Applied Meteorology, 1991, 2(2): 168-173.
[陈隆勋, 邵永宁, 张 消芳等. 近四十年来我国气候变化的初步分析. 应用气象学报, 1991, 2(2): 168-173.]
[21] Li Yingnian, Wang Qiji, Zhao Xinquan et al. The influences on the high-cold meadow vegetation production by the climatic warmer. Acta Prataculturae Sinica, 2000, 8(1): 23-29.
[李英年, 王启基, 赵新 全等. 气候变暖对高寒草甸气候生产力的影响. 草地学报, 2000, 8(1): 23-29.]
[22] Li Xiaobing, Wang Ying, Li Kerang. NDVI sensitivity to seasonal and interannual rainfall variations in northern China. Acta Geographica Sinica. 2000, 55(suppl.): 82-89.
[李晓兵, 王瑛, 李克让. NDVI 对降水 季节性和年际变化的敏感性. 地理学报, 2000, 55(增刊): 82-89.]
[23] Dai Jiaxi. Qinghai-Tibet Plateau Climate. Beijing: China Meteorological Press, 1990. 112.
[戴加洗. 青藏 高原气候. 北京: 气象出版社, 1990. 112.]
[24] Liu Xiaodong. Relationship between the climatic warming over the Qinghai-Xizang Plateau and its surrounding areas in recent 30 years and the elevation. Plateau Meteorology, 1998, 17(3): 245-249.
[刘晓 东. 青藏高原及其邻近地区近30 年气候变暖与海拔高度的关系. 高原气象, 1998, 17(3): 245-249.]
[25] Wei Zhigang, Huang Ronghui. Interannual and interdecadal variations of air temperature and precipitation over the Tibetan Plateau. Chinese Journal of Atmospheric Sciences, 2003, 27(2): 157-170.
[韦志刚, 黄荣 辉. 青藏高原气温和降水的年际和年代际变化. 大气科学, 2003, 27(2): 157-170.]
[26] Bradley R S, Diaz H F, Eischeid J K et al. Precipitation fluctuations over Northern Hemisphere land areas since the mid-19th century. Science, 1987, 237(4811): 171-175.
[27] Shi Neng, Chen Luwen, A preliminary study on the global land annual precipitation associated with ENSO during 1948-2000. AAS, 2002, 19(6): 993-1003.
[28] Haston L, Michaelsen J. Long-term central coastal California precipitation variability and relationship to El Ni!o-Southern Oscillation. Journal of Climate, 1994, 7: 1373-1387.
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