中国农业气象 ›› 2011, Vol. 32 ›› Issue (增刊): 130-134.

• 论文 • 上一篇    下一篇

极端降水对淮河流域气候生产潜力的影响分析

张旭晖,霍金兰,谢小萍   

  1. 江苏省气象台,南京210008;盐都区气象局,盐城224005
  • 出版日期:2011-10-31 发布日期:2011-11-24
  • 基金资助:

    淮河流域气象开放研究基金项目(HRM200806)

Impacts of Extreme Precipitation Events on Climate Potential Productivity in Huaihe River Basin

ZHANG Xuhui,HUO Jinlan,XIE Xiaoping   

  1. Jiangsu Meteorological Observatory, Nanjing210008,China;Yandu Meteorological Bureau, Yancheng224005
  • Online:2011-10-31 Published:2011-11-24

摘要: 利用1961-2008年淮河流域127个站点年平均气温、降水量资料和Thornthwaite Memorial模型,计算了历年气候生产潜力(TSPV),分析了其时空分布规律及变化趋势,结果表明:48a间,淮河流域TSPV值的变化趋势与年降水量变化趋于一致,尤其是起伏变化比较接近,其空间分布表现为明显的纬向递减特征。流域TSPV值与极端强降水量、强降水日数呈极显著的正相关;大部分地区的气候生产潜力与强降水强度、持续5d以上的降水次数呈显著的正相关;流域的西北部地区及东部沿海的部分地区气候生产潜力与年持续15d以上无雨次数呈负相关关系。

关键词: 淮河流域, 极端降水, 气候生产潜力

Abstract: The evapotranspiration climate productive potential (TSPV) was calculated based on Thornthwaite Memorial model and the data from 127 meteorological stations during 1961 to 2008 in Huaihe river basinThe temporalspatial distribution regularity and change trend of TSPV were analyzed in this paper.The results indicated that TSPV variation was accordant with the variation of annual precipitation,which had zonal decrease in latitudinal direction.Both extreme precipitation and the number of heavy rainfall days have a significant positive correlation with TSPV.In most areas,TSPV was positively correlated with heavy rainfall intensity and annual times of 5 over days of continuous rainfall,which had a negative correlation with annual times of 15 over days of no rainfall in northwest part of Huaihe river basin and partial eastern coastal areas

Key words: Huaihe river basin, Extreme precipitation, Climate potential productivity