摘要
本文用全世界大约180个气象台站的月平均气压资料,求得从1970至1980年逐月的大气质量分布激发函数.计算结果表明,虽然中国领土面积只占全球陆地面积的6.58%,但中国地区对大气质量分布激发函数的贡献约占1/7—1/5.
By using the monthly average pressure data of about 180 meteorological stations all over the world and adopting interpolation of truncated spherical harmonic series which comprise terms up to order 7 and degree 7, the pressure value at sea level at each grid point is calculated, and then the monthly values of the excitation functions ψ(t) of air mass distribution from 1970—1980 are obtained by integration. The results show that, although the area of China covers only 6.58% of the total land area all over the world, yet the contributions of Chinese area to the excitation functions of air mass distribution make up 1/7 of ψ_1 and 1/5 of ψ_2.
出处
《天文学报》
1987年第1期46-51,共6页
Acta Astronomica Sinica
