Combined differential‐integral approach for the radiation field computation in a spherical shell atmosphere: Nonlimb geometry
Combined differential‐integral approach for the radiation field computation in a spherical shell atmosphere: Nonlimb geometry
复制标题
DOI：
10.1029/2000jd900378
复制
发表时间：
2000-09
影响因子：
--
通讯作者：
A. Rozanov;V. Rozanov;J. Burrows
中科院分区：
文献类型：
--
作者：
A. Rozanov;V. Rozanov;J. Burrows
本文提出了一种新的微分-积分联合方法（CDI），它比常用的伪球模型更精确，但不象全球模型那样复杂和耗时。辐射传递方程以积分形式求解。通过求解积分微分辐射传输方程，得到了伪球面大气中的多次散射源函数。新模型和伪球面模型之间的相对差异，为各种太阳天顶角，视角和方位角的一组波长。此外，GDI模型与高斯-赛德尔球模型（GSS）和MODTRAN进行了比较。GDI和GSS之间的差异被发现是小于2%和GDI和MODTRAN之间高达12%。
A new combined differential-integral approach (CDI) has been developed, which is more accurate than commonly used pseudospherical models but not so complicated and computer time-consuming as a fully spherical model. The radiative transfer equation is solved in its integral form. The multiple-scattering source function is obtained by solving the integrodifferential radiative transfer equation in a pseudospherical atmosphere. Relative differences between the new model and the pseudospherical model for a variety of solar zenith angles, viewing angles, and azimuth angles for a set of wavelengths are presented. Furthermore, the GDI model is compared with a Gauss-Seidel spherical model (GSS) and with MODTRAN. The difference between GDI and GSS is found to be less than 2% and between GDI and MODTRAN up to 12%.