气象2017，Vol.43Issue(3)：286-293,8.DOI:10.7519/j.issn.1000-0526.2017.03.004
1970—2012年夏半年中国大气0℃层高度时空变化特征
Spatio-Temporal Changes of 0℃ Isotherm Height in China During Summer Half Year of 1970-2012
摘要
Abstract
Based on the meteorological data at 84 sounding and surface stations in China during summer half year from 1970 to 2012,the interannual variation of 0℃isotherm height (H0 )is analyzed.The result indi-cates that the mean H0 is between 2800 m and 5200 m in China during summer half year of the last 43 years,and the south H0 is higher than the north H0 ,mainly controlled by latitude and altitude.The annu-al mean H0 increases by 2.23 m·a-1 ,which has passed the 0.01 level of significance test.The change trend (p<0.05)on a monthly basis is reported for 1.82,2.03 and 5.38 m·a-1 in June,July and Septem-ber,respectively,and all have passed the 0.05 level significance test.During 1970-2012,the H0 at most sounding stations in China shows an increasing trend in summer half year.The increasing trend at northern stations is mostly over the 0.05 level,and the ascending range is generally larger than at the southern sta-tions.The mean H0 is positively correlated to mean air temperature in summer half year with correlation coefficients between 0.07 and 0.89.The correlation coefficients for the north are higher than that for the south.关键词
中国/0℃层高度/平均气温/空间分布/气候变化Key words
China/0℃ isotherm height/mean temperature/spatial distribution/climatic change分类
天文与地球科学引用本文复制引用
黄小燕,王小平,王劲松,冯建英,王圣杰,陈斐..1970—2012年夏半年中国大气0℃层高度时空变化特征[J].气象,2017,43(3):286-293,8.基金项目
公益性行业(气象)科研专项(GYHY201506001-4)、国家自然科学基金项目(41175081、41201370和31300376)、干旱气象科学基金(IAM201412)及甘肃省自然科学基金(1208RJYA025)共同资助 （气象）
