| 北半球大气质量的平均月际变化 |
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| 引用本文： | 杨鉴初.北半球大气质量的平均月际变化[J].气象学报,1956,27(1):37-59. |
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| 作者姓名： | 杨鉴初 |
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| 作者单位： | 中国科学院地球物理研究所 |
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| 摘 要： | 本文根据1930-1939年间北半球逐月海平面平均气压图,计算逐月之间南北两半球大气质量的输送,以及北半球海洋区与大陆区之间的大气质量输送。本文获得以下几点主要的认识: (1)每年自1月至7月北半球的大气质量逐渐减少,自7月至1月则逐渐增加,半年增减的总质量约为10.3×10~(18)克,但半年增加与半年减少期中增减的速度并不一致。 (2)5—6月与10—11月两半球之间的大气质量输送最为强烈。 (3)两半球之间的质量输送一般大于北半球海陆区之间的质量输送。 (4)两半球之间的质量输送主要决定于亚欧大陆区逐月间的大气质量变化。 (5)亚洲区与太平洋区月际大气质量变化异常时,对我国月平均温度距平分布及水旱区域分布有明显的影响。
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| 收稿时间： | 1955/12/2 0:00:00 |
THE MEAN MONTHLY CHANGES OF AIR MASS OF THE NORTHERN HEMISPHERE |
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| YANG CHIEN-CHU.THE MEAN MONTHLY CHANGES OF AIR MASS OF THE NORTHERN HEMISPHERE[J].Acta Meteorologica Sinica,1956,27(1):37-59. |
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| Authors: | YANG CHIEN-CHU |
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| Institution: | Institute of Geophysics and meteorology, Academia Sinica |
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| Abstract: | In this paper we discuss(1) the transport of air masses between hemispFieres, and(2) transport between oceans and continents in northern hemisphere. It is found,(1) that the quantity of air mass transport between two hemispheres is much greater than the mass transport between continents and oceans,(2) that generally from January to July the total air mass of northern hemisphere is
gradually decreased and the total transport of air in this period to southern hemissphere is about 10.3×1018 grains,(3) that the mass transport between hemisphere is greatest during the period from May to June and from October to November,(4) that the amount of monthly mass transport between two hemispheres is determined by the amount of variation over Eurasian urea, and(5) that the
positive deviation from normal of total amount of air mass over Asia accompanies with cold weather while negative deviation accompanies with warm weather over same continent. |
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