南极地区近地面太阳气压潮汐初探

Chapman 等大气潮汐专家认为,地球表面的太阳潮汐全口波被抑制,而半口波被放大,这个结论一直延续数十年。然而,根据南极地区三个站的资料计算表明:在南极地区,地面太阳气压潮汐的全日波远强于半日波,这与高登义等(1986)应用我国205个台站资料计算结果是一致的。 上述结果表明,南极地区近地面太阳气压潮汐全日波并未被抑制,而半日波也未被放大。这与Chapman等人的结论是不一致的。

PRILIMINARY STUDY OF THE SOLAR BAROMETRIC OSCILLATION ON THE GROUND SURFACE IN ANTARCICA

The scientists of atmoshperic tide (e.g., Chapman, 1924) thought that the solar diurnal barometric oscillation is suppressed and the solar semidiurnal barometric oscillation is magnified. This viewpoint has continued for quite a few decades. However, the analgsis of the Antarctic data shows that the solar diurnal barometric oscillation is much stronger than the semidiurnal one on the ground surface in the Antarctica.This conclusion is agreed with that given by Gao et al. (1986) using the data of 205 stations in China. From the above, it seems to be that the solar diurnal barometric oscillation is not suppressed and the semidiurnal one is also not magnified on the ground surface in the Antarctica, thus it is different from Chapman's result. Meanwhile, it's got from the analysis that the solar semidurnal temperature oscillation is stronger than durnal one in some Antarctic winter months. It is different from that in non-polar region, which seems to be not directly produced by solar radiation. And, the solar semidurnal barometric oscillation isn't stronger than the durnal one when the semidurnal temperature oscillation is stronger than the durnal temperaure one, which probably expresses that the cause of barometric oscillation on the ground surface is complex with many effecting factors.