文章摘要
鞠 彬, 曾 明,徐国梁.不同干旱指数在新疆哈巴河地区旱情评价中的应用研究Journal of Water Resources and Water Engineering[J].,2017,28(2):237-243
不同干旱指数在新疆哈巴河地区旱情评价中的应用研究
Application research of different drought indexes for drought assessment in Habahe region of Xinjiang
  
DOI:10.11705/j.issn.1672-643X.2017.02.41
中文关键词: 标准化降水指数  标准化降水蒸发指数  多时间尺度  干旱评价  新疆哈巴河地区
英文关键词: standardized precipitation index(SPI)  sandardized precipitation evapotranspiration index(SPEI)  multi-time scale  drought assessment  Habahe region of Xinjiang
基金项目:
Author NameAffiliation
JU Bin1, ZENG Ming2, XU Guoliang1 (1.中国电建集团 华东勘测设计研究院有限公司 浙江 杭州 311122 2.水利部长江水利委员会 水文局 水文情报预报中心 湖北 武汉 430010) 
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中文摘要:
      利用新疆哈巴河地区1962-2014年间的气象资料,比较分析多时间尺度的标准化降水指数(SPI)和标准化降水蒸发指数(SPEI)在该地区的适用性,并基于两种干旱指数计算结果分析哈巴河地区53 a间的干旱演变特征。结果表明:各时间尺度(年、季、月)下的SPI指数与SPEI指数呈现显著性相关;单月小尺度下,SPEI指数评价干旱事件等级较实际情况要严重,SPI指数在实际使用中更具优势;12月长时间尺度下,SPI指数和SPEI指数均体现出巴河地区干旱逐步减轻的趋势,在气候变暖大背景下考虑气温变化的SPEI指数较SPI指数更符合当地实际;各季节尺度下,SPISPEI指数发生各干旱等级事件的比例相差不大,实际使用中建议春冬季使用SPI指数,夏秋季使用SPEI指数或修正过的SPI指数,同时需要重点关注夏秋季干旱。
英文摘要:
      In this paper, the applicability of the multi-timescale standardized precipitation index (SPI) and standardized precipitation evaporation index (SPEI) were analyzed, and the 53 years of drought evolution characteristics was evaluated using the meteorological data from 1962 to 2014 at Habahe region, Xinjiang. The results showed that, there was significant correlation between the SPI and SPEI indexes at different timescales of 12-month, 3-month and 1-month. At the monthly scale, SPEI index evaluated more serious level than actual condition of drought event, and SPI index was better in practical use. At the 12-month scale, drought severity decreased indicated both by the SPI index and SPEI indexes. The SPEI index, which considered the temperature changes under the global warming background, was in more practical use. The occurrence ratio of drought events in different seasons differed small when denoted by the SPI and SPEI indexes. In practical use, SPI index is applicable in the spring and winter, while SPEI or revised SPI indexes are applicable in the summer and autumn. Meantime there is a need to focus on the summer and autumn droughts.
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