...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Geoscience and Environment Protection >Spatial and Temporal Characteristics of Drought and Flood in Quanzhou Based on Standardized Precipitation Index (SPI) in Recent 55 Years
【24h】

Spatial and Temporal Characteristics of Drought and Flood in Quanzhou Based on Standardized Precipitation Index (SPI) in Recent 55 Years

机译：基于近55年标准化降水指数（SPI）的泉州市旱涝时空特征

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To analyze the characteristics of drought and flood variations in Quanzhou during recent 55 years, the standardized precipitation index (SPI) and Empirical Orthogonal Function (EOF) and Rotated Empirical Orthogonal Function (REOF) were calculated by using the monthly precipitation data from 6 meteorological bureaus across Quanzhou for 1960-2014. Results showed that: 1) During 1960-2014, the drought and flood showed Periodic variation characteristics in Quanzhou, the specific period of frequent drought was 1963-1972, 1977-1986 and 2009-2011, and the specific period of frequent flood was 1961-1962, 1972-1975, 1990-1992 and 1997-2007; the drought and flood did not have significant tendency of variation in Spring and Summer, and the drought and flood showed a non-significant downward trend in Autumn and Winter. 2) The drought and flood variation had relatively consistent trend in Quanzhou, but there was a big difference on the northwest mountainous area, the middle semi-mountainous area and the southeast coast area in some periods. 3) The precipitation cell and distribution in every season were Nan’an and Anxi, but there was a big difference in rainfall less area: it was Yongchun and Dehua in Spring, Chongwu and Jinjiang in Summer, Chongwu in Autumn, Dehua and Chongwu in Winter.
机译：为了分析泉州近55年的旱涝变化特征，利用6个气象局的月降水资料，计算了标准降水指数（SPI），经验正交函数（EOF）和旋转经验正交函数（REOF）。 1960-2014年在泉州各地。结果表明：1）1960-2014年，泉州市旱涝呈周期性变化特征，频繁干旱的特定时期为1963-1972、1977-1986和2009-2011，频繁洪水的特定时期为1961。 -1962、1972-1975、1990-1992和1997-2007;春夏季旱涝无明显变化趋势，秋冬季旱涝无明显下降趋势。 2）泉州市旱涝变化趋势具有相对一致的趋势，但西北山区，中半山区和东南沿海地区在一定时期内差异较大。 3）南安和安溪各季节的降水单元和分布，但降水量较少的地区差异较大：春季为永春和德化，夏季为崇武和晋江，秋季为崇武，秋季为崇武，德化和崇武。冬季。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号