为了满足空间天气领域发展的需求，我们拟开发新一代的银河宇宙射线受日球层调制的数值模型。新的数值模型包含了日鞘区的电流片漂移效应，以及外日球层对于银河宇宙射线的调制作用。利用旅行者一号飞船在日球层顶附近的宇宙射线观测数据以及近地卫星PAMELA在2009年观测到的质子能谱，我们可以对数值模型进行校正，得到更加真实的模型参数；并且通过模拟旅行者一号在日球层顶附近的观测结果，可以更加深入地了解银河宇宙射线在日球层顶附近的物理传播机制。利用开发的银河宇宙射线调制模型，我们计划模拟与人类航天活动相关空间区域的银河宇宙射线强度，定量研究银河宇宙射线强度与人体承受辐射量的关系，进而提升银河宇宙射线对人类航天活动影响的认识。

To meet the demands of the development for space weather, we are planning to build a new generation Galactic Cosmic Ray modulation model. This galactic cosmic ray modulation model will incorporate the Magnetohydrodynamics global heliospheric data into the Parker type galactic cosmic ray transport model. In addition, this galactic cosmic ray modulation model will simultaneous takes account of the current sheet drift in the heliosheath and the modulation effect caused by the outer heliosheath. The recent Voyager 1 cosmic ray observation near the heliopause and the PAMELA observed cosmic ray proton spectrum in 2009 will be used to tune up this galactic cosmic ray modulation model. This tuning process will enable us to get some physical insights for galactic cosmic ray transport near the heliopause. Based on this state-of-the-art galactic cosmic ray modulation model, we are planning to study the radiation environment where the human space program takes place. Specifically, .we will focus on the satellite orbit from the earth to the moon and the orbit from the earth to Mars. To advance our understanding of the galactic cosmic ray radiation effect, an qualitative study on the relationship between the galactic cosmic ray flux and the human radiation dose will also be performed.