基于两种潜在蒸散发算法的SPEI对中国干湿变化的分析

刘珂; 姜大膀

doi:10.3878/j.issn.1006-9895.1402.13265

基于两种潜在蒸散发算法的SPEI对中国干湿变化的分析

doi: 10.3878/j.issn.1006-9895.1402.13265

刘珂¹,
姜大膀²

1.
中国科学院大气物理研究所竺可桢—南森国际研究中心, 北京100029;中国科学院大学, 北京100049
2.
中国科学院大气物理研究所竺可桢—南森国际研究中心, 北京100029;中国科学院气候变化研究中心, 北京100029

基金项目: 国家重点基础研究发展计划(973计划)项目2012CB955401,公益性行业(气象)科研专项GYHY201006022,国家自然科学基金项目41175072

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出版历程
- 收稿日期: 2013-09-16
- 修回日期: 2014-05-07

Analysis of Dryness/Wetness over China Using Standardized Precipitation Evapotranspiration Index Based on Two Evapotranspiration Algorithms

LIU Ke¹,
JIANG Dabang²

1.
Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;University of the Chinese Academy of Sciences, Beijing 100049
2.
Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;Climate Change Research Center, Chinese Academy of Sciences, Beijing 100029

摘要

摘要: 利用美国普林斯顿大学高分辨率的全球陆面同化数据集和美国国家环境预测中心的辐射再分析数据,根据Thornthwaite和Penman-Monteith公式分别计算了1948～2008年中国区域潜在蒸散发量;而后,使用降水和两套潜在蒸散发数据分别计算得到标准化降水蒸散发指数SPEI(Standardized Precipitation Evapotranspiration Index),并以此研究了1949～2008年中国区域干湿变化时空特征以及两种SPEI结果之间的差异;最后,给出了两种SPEI在中国的适用区域。结果表明:两种SPEI均显示中国地区整体上存在变干趋势,季节上以春季的变干趋势最为显著;空间上表现为以长江为界的南涝北旱,显著变干的区域有内蒙古中部、华北、东北以及四川东部地区,显著变湿的地区主要位于新疆北部和西部。同时,各种不同等级干旱也呈增加趋势,其中以中等干旱增加最为显著。1990年代中后期以来是中等和极端干旱发生最多的时期,空间上与SPEI显著减小的区域相对应。两种SPEI在冬、春季差异最大,这主要是由于期间两种潜在蒸散发的计算结果之间存在很大差异。在Penman-Monteith公式中,由于空气动力项对冬、春季北方潜在蒸散发的贡献显著增加,基于该公式的SPEI相对而言能更合理地描述干湿变化特征。
- 潜在蒸散发 /
- SPEI /
- 干湿变化 /
- 干旱
Abstract: On the basis of a high-resolution global meteorological dataset from Princeton University and monthly radiation data from the National Centers for Environmental Prediction (NCEP), two types of Standardized Precipitation Evapotranspiration Index (SPEI) were established using precipitation in addition to two sets of potential evapotranspiration (PET) data, in which PET was calculated by Thornthwaite and Penman-Monteith formulas, respectively. On the basis of these results, the dryness/wetness trends over China during 1949-2008 measured by two SPEIs and their differences are analyzed. In addition, the applicable regions of the two SPEIs are evaluated. It is determined that a dryness trend for the entire country was indicated by the two SPEIs. Seasonally, the most significant dryness trend occurred in spring. Geographically, drought clearly increased in northern China but decreased in southern China, with a dividing line approximately along with the Yangtze River valley. A significant dryness trend was apparent over the areas of western Inner Mongolia, North China, northeastern China, and eastern Sichuan, whereas the opposite was indicated for northern and western Xinjiang. Moreover, different grades of drought events increased across the entire country. Among them, the moderate drought event showed the most significant increasing trend, and the occurrences of moderate and extreme drought events were the most frequent after the late 1990s for the entire study period. Spatially, the regions with an obvious upward trend of drought events corresponded to the regions with a downward trend of SPEI. It is noted that the difference between the two types of SPEI was largest in winter and spring because of differences in PET. In northern China, the contribution of an aerodynamic term to PET in the Penman-Monteith formula was determined to be important in winter and spring and hence gave more reasonable results.
- Evapotranspiration /
- SPEI /
- Dryness/wetness /
- Drought

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参考文献(31)

[1]	Abramopoulos F, Rosenzweig C, Choudhury B. 1988. Improved ground hydrology calculations for global climate models (GCMs): Soil water movement and evapotranspiration [J]. J. Climate, 1: 921-941.
[2]	白永清, 智协飞, 祁海霞, 等. 2010. 基于多尺度SPI的中国南方大旱监测 [J]. 气象科学, 30 (3): 292-300. Bai Yongqing, Zhi Xiefei, Qi Haixia, et al. 2010. Severe drought monitoring in South China based on the standardized precipitation index at different scales [J]. Scientia Meteorologica Sinica (in Chinese), 30 (3): 292-300.
[3]	Dai A G. 2011 Drought under global warming: A review [J]. Wiley Interdisciplinary Reviews: Climate Change, 2: 45-65.
[4]	Guttman N B. 1998. Comparing the palmer drought index and the standardized precipitation index [J]. Journal of the American Water Resources Association, 34 (1): 113-121.
[5]	Hayes M, Wilhite D A, Svoboda M, et al. 1999. Monitoring the 1996 drought using the standardized precipitation index [J]. Bull. Amer. Meteor. Soc., 80: 429-438.
[6]	姜大膀, 苏明峰, 魏荣庆, 等. 2009. 新疆气候的干湿变化及其趋势预估 [J]. 大气科学, 33 (1): 90-98. Jiang Dabang, Su Mingfeng, Wei Rongqing, et al. 2009. Variation and projection of drought and wet conditions in Xinjiang [J]. Chinese Journal of Atmospheric Sciences (in Chinese), 33 (1): 90-98.
[7]	Jensen M E, Burman R D, Allen R G. 1990. Evapotranspiration and irrigation water requirements [M]. ASCE Manuals and Reports on Engineering Practice No. 70, American Society of Civil Engineers, New York, 332 pp.
[8]	李剑锋, 张强, 陈晓宏, 等. 2012. 基于标准降水指标的新疆干旱特征演变 [J]. 应用气象学报, 23 (3): 322-330. Li Jianfeng, Zhang Qiang, Chen Xiaohong, et al. 2012. SPI-based drought variations in Xinjiang, China [J]. Journal of Applied Meteorological Science (in Chinese), 23 (3): 322-330.
[9]	李明星, 马柱国. 2012. 中国气候干湿变化及气候带边界演变: 以集成土壤湿度为指标 [J]. 科学通报, 57 (28): 2740-2754. Li Mingxing, Ma Zhuguo. 2013. Soil moisture-based study of the variability of dry-wet climate and climate zones in China [J]. Chinese Science Bulletin, 58 (4): 531-544.
[10]	李伟光, 易雪, 侯美婷, 等. 2012. 基于标准化降水蒸散指数的中国干旱趋势研究 [J]. 中国生态学报, 20 (5): 643-649. Li Weiguang, Yi Xue, Hou Meiting, et al. 2012. Standardized precipitation evapotranspiration index shows drought trends in China [J]. Chinese Journal of Eco-Agriculture (in Chinese), 20 (5): 643-649.
[11]	Lloyd-Hughes B, Saunders M A. 2002. A drought climatology for Europe [J]. International Journal of Climatology, 22: 1571-1592.
[12]	马柱国, 符淙斌. 2006. 1951～2004年中国北方干旱化的基本事实 [J]. 科学通报, 51 (20): 2429-2439. Ma Zhuguo, Fu Congbin. 2006. Some evidence of drying trend over northern China from 1951 to 2004 [J]. Chinese Science Bulletin, 51 (23): 2913-2925.
[13]	马建勇, 许吟隆, 潘婕. 2012. 基于SPI与相对湿润度指数的1961～2009年东北地区5～9月干旱趋势分析 [J]. 气象与环境学报, 28 (3): 90-95. Ma Jianyong, Xu Yinlong, Pan Jie. 2012. Drought tendency based on standardized precipitation index (SPI) and relative moisture index over northeast China from May to September during 1961-2009 [J]. Journal of Meteorology and Environment (in Chinese), 28 (3): 90-95.
[14]	McKee T B, Doesken N J, Kleist J. 1993. The relationship of drought frequency and duration to time scales [C]//Eighth Conference on Applied Climatology. Anaheim, CA, American Meteor Society, 179-184.
[15]	Monteith J L. 1965. Evaporation and environment [J]. Symposium of the Society for Experimental Biology, 19: 205-234.
[16]	Palmer W C. 1965. Meteorological drought [R]. U. S. Weather Bureau, Research Paper, 45: 1-58.
[17]	Redmond K T. 2002. The depiction of drought: a commentary [J]. Bull. Amer. Meteor. Soc., 83: 1143-1147.
[18]	Richard R, Heim J. 2002. A review of twentieth-century drought indices used in the United States [J]. Bull. Amer. Meteor. Soc., 83: 1149- 1165.
[19]	施晓晖, 徐祥德. 2006. 中国大陆冬夏季气候型年代际转折的区域结构特征 [J]. 科学通报, 51 (17): 2075-2084. Shi Xiaohui, Xu Xiangde. 2006. Regional characteristics of the interdecadal turning of winter/summer climate modes in Chinese mainland [J]. Chinese Science Bulletin, 52(1): 101-112.
[20]	石崇, 刘晓东. 2012. 1947～2006年东半球陆地干旱化特征——基于SPEI数据的分析 [J]. 中国沙漠, 32 (6): 1691-1701. Shi Chong, Liu Xiaodong. 2012. Continent drought characteristics over the eastern hemisphere from 1947 to 2006: Analyses based on the SPEI dataset [J]. Journal of Desert Research (in Chinese), 32 (6): 1691-1701.
[21]	Sheffield J, Goteti G, Wood E F. 2006. Development of a 50-yr high- resolution global dataset of meteorological forcings for land surface modeling [J]. J. Climate, 19: 3088-3111.
[22]	苏明峰, 王会军. 2006. 中国气候干湿变率与ENSO的关系及其稳定性 [J]. 中国科学D辑: 地球科学, 36 (10): 951-958. Su Mingfeng, Wang Huijun. 2007. Relationship and its instability of ENSO-Chinese variations in droughts and wet spells [J]. Science in China Series D: Earth Sciences, 50 (1): 145-152.
[23]	Thornthwaite C W. 1948. An approach toward a rational classification of climate [J]. Geographical Review, 38: 55-94.
[24]	Vicente-Serrano S M, Beguería S, López-Moreno J I. 2010a. A multiscalar drought index sensitive to global warming: The standardized precipitation evapotranspiration index [J]. J. Climate, 23: 1696-1718.
[25]	Vicente-Serrano S M, Beguería S, López-Moreno J I, et al. 2010b. A new global 0.5° gridded dataset (1901-2006) of a multiscalar drought index: Comparison with current drought index datasets based on the palmer drought severity index [J]. Journal of Hydrometeorology, 11: 1033-1043.
[26]	Vicente-Serrano S M, López-Moreno J I, Lorenzo-Lacruz J, et al. 2011. The NAO impact on droughts in the Mediterranean region [J]. Advances in Global Change Research, 46: 23-40.
[27]	王大钧, 陈列, 丁裕国. 2006. 近40年来中国降水量、雨日变化趋势及与全球温度变化的关系 [J]. 热带气象学报, 22 (3): 286-289. Wang Dajun, Chen Lie, Ding Yuguo. 2006. The change trend in rainfall, wet days of China in recent 40 years and the correlation between the change trend and the change of globe temperature [J]. Journal of Tropical Meteorology (in Chinese), 22 (3): 286-289.
[28]	卫捷, 陶诗言, 张庆云. 2003. Palmer干旱指数在华北干旱分析中的应用 [J]. 地理学报, 58 (7S): 91-99. Wei Jie, Tao Shiyan, Zhang Qingyun. 2003. Analysis of drought in northern China based on the palmer severity drought index [J]. Acta Geographica Sinica (in Chinese), 58 (7S): 91-99.
[29]	吴佳, 高学杰. 2013. 一套格点化的中国区域逐日观测资料及与其他资料的对比 [J]. 地球物理学报, 56 (4): 1102-1111. Wu Jia, Gao Xuejie. 2013. A gridded daily observation dataset over China region and comparison with the other datasets [J]. Chinese Journal of Geophysics (in Chinese), 56 (4): 1102-1111.
[30]	翟盘茂, 邹旭恺, 2005. 1951～2003年中国气温和降水变化及其对干旱的影响 [J]. 气候变化研究进展, 1 (1): 16-18. Zhai Panmao, Zou Xukai. 2005. Changes in temperature and precipitation and their impacts on drought in China during 1951-2003 [J]. Advances in Climate Change Research (in Chinese), 1(1): 16-18.
[31]	邹旭恺, 任国玉, 张强. 2010. 基于综合气象干旱指数的中国干旱变化趋势研究 [J]. 气候与环境研究, 15 (4): 371-378. Zou Xukai, Ren Guoyu, Zhang Qiang. 2010. Drought variations in China based on a compound index of meteorological drought [J]. Climatic and Environmental Research (in Chinese), 15 (4): 371-378.