作　　者： ; (赖火星）;

机构地区： 中山大学环境科学与工程学院大气科学系

出　　处： 《中山大学学报（自然科学版）》 1989年第3期12-18,共7页

摘　　要： 用最大熵谱方法分析了广州、赣州、长沙、南宁、汕头1979～1982年2、3、4月逐日08时的u_(500),v_(500),H_(500),H_(700),T_(850),T_(地面),P_(地面)等华南地区高低空诸要素的周期变化特征。结果表明;各要素振动周期的范围为4～17.3天,且主要集中在6～13天;还有26天、52天长周期。广州站地面日平均气压和气温谱的多年变化具有强锋值每隔2～4年出现一次的规律。过程还有北多南少的特征。 Using the maximum entropy method, here, we analyse some features of per-iodic variation of several upper and low level meteorological variables at Guang-zhou, Ganzhou, Changsha, Nanning and Shantou over South China such as dailyU_(500), V_(500), H_(500), H_(700), T_(850), T_(sur) and P_(sur) (at OOGMT) from February to Aprilduring 1979-1982. The results show that the oscillation periods of variousvariables have a range within 4～17.3 days, and mainly concentrate in 6～13 days,there are also the long periods of 26 days and 52 days. The spectra of daily ave-rage surface air temperatures and pressures at Guangzhou have the regularitythat their strong peaks appear for every 2～4 years, more frequently in the norththan the south.

关 键 词： 最大熵方法 气象因素 广州 地温

领　　域： [天文地球]