南水北调中线冬期输水气温研究

Water Transfer in Ice Period for the Middle Route Project of the South-to-North Water Diversion

南水北调中线线路较长,从暖温带的长江流域流向半寒带的海河流域,沿途水工建筑物多,冬季冰情问题是关乎冬季生产和生活安全的重大问题。本研究根据南水北调沿途新乡及新乡以北地区50年的气象资料,分析了新乡、安阳、邢台、石家庄50年气温变化及四个气象站气温之间关系。重点分析最北端的石家庄站气温、气候特点及稳定转负日期,根椐暖冬、冷冬不同标准为冬季气候进行分类。为南水北调中线工程冬期输水提供可靠科学依据。

The Middle Route Project of the South-to-North Water Diversion is from the Yangtze Yiver basin in the warm temperature zone to the Haihe River plain in the semi-cold zone,and many hydraulic structures are designed alone the main trunk canal. According the 50-year meteorological data from the four meteorological stations in Xinxiang, Anyang,Xingtai, Shijiazhuang, the correlation and variationin of the air temperature are analyzed for each meteorological station. The average air temperature, climate classification, date for air temperature below zero are studied mainly in Shijiazhuang,which is the northernmost region among the above four ones.