文献类型：期刊文献

中文题名：连南县气温变化特征及其与ENSO的关系

英文题名：Characteristics of Temperature Variations of Liannan County and Their Relationships with ENSO

作者：潘泽凯[1];陈贞贞[2]

机构：[1]广东海洋大学大气科学系,广东湛江524000;[2]连南县气象局,广东连南513300

年份：2017

卷号：39

期号：3

起止页码：27

中文期刊名：广东气象

外文期刊名：Guangdong Meteorology

语种：中文

中文关键词：气候学;气温;ENSO事件;突变分析;小波分析;连南县

外文关键词：climatology ; temperature ; ENSO event ; abrupt change analysis ; wavelet analysis ; Liannan county

中文摘要：利用连南县1962—2014年的逐月气温资料以及美国NOAA Ni1o 3.4区的海温距平资料,通过最小二乘法、滑动平均、突变检验以及小波分析等方法,分析连南县近53年的气温变化特征及其与ENSO的关系。结果表明:连南县近53年气温呈上升趋势,气候倾向率为0.010 8℃/年,其中冬季气候倾向率为0.017 9℃/年,对全年气温变化贡献最大;连南气温突变点为1990年,到2000年突变上升趋势更为明显,秋季气温突变点为1986年,春、夏、冬季没有发生突变;连南春、秋、冬季气温与ENSO呈正相关、夏季呈负相关;ENSO对连南气温的影响最明显是在次年。通过小波分析,连南气温和SSTA都存在6~7年的周期变化。

外文摘要：Using monthly temperature data of Liannan County from 1962 to 2014 and NOAA Nino 3.4 sea surface temperature anomalies （SSTA） and with the methods of least square, running mean, abrupt change test and wavelet analysis, we studied the characteristics of temperature variation in the county over the 53 years and their relationships with the ENSO. The result is shown as follows. The temperature shows an increasing tendency over the 53 years, with a climatological tendency rate of 0. 010 8 ℃/year. The rate is 0. 017 9 ℃/year for the winter, which contributes the most to the temperature variation. For Liannan county, a point of abrupt temperature change occurred in 1990 and a rising trend was much more obvious in 2000. For the autumn, the abrupt change point was in 1986 while there was no such points for the spring, summer or winter. The temperature of these three seasons are positively correlated with the ENSO while that of summer is negatively correlated with it. The effect of ENSO on the temperature of Liannan county is most significant in the year afterwards. Wavelet analysis reveals that the temperature and SSTA vary periodically at a cycle of 6 to 7 years in the county.