摘要
本文分析了我国31个站1974—1986年逐月1.6m地温距平时空变化的气候学特征。结果表明:地温距平有很强的持续性。地温异常的幅度越大,则异常维持的时间越长。分析发现地温距平场在从冬到夏的季节变化中存在着明显的准半年韵律现象。并且指出冬半年累积的月地温距平绝对值大(小),则来年(及其汛期)的降水变率也大(小)。
Climatological characteristics about temporal and spatial variations of anomalies of 31 stations' soil temperature at depth 1.6m in China from 1974 to 1976 have been analysed. The results show that there is strong persistence in anomaly field of soil temperature. The more range of soil temperature anomaly changes large, the more the anomaly persists long. Meanwhile, it has been found that there is obvious quasi-semiannual rhythm in the seasonal transition of the anomaly field of soil temperature from winter to summer. Otherwise, accumulative absolute value of the anomalies of month's soil temperature in winter-half-year is large (or small), then the rainfall variability is high (or low) next year (and its flood season).
出处
《高原气象》
CSCD
北大核心
1992年第3期312-320,共9页
Plateau Meteorology
基金
国家基础性研究重大关键项目"气候动力学和气候预测理论的研究"资助
关键词
地温异常
降水
气候学
Soil temperature anomaly
Persistence
Rhythm
Rainfall variability.
