通过项目所有参与人的共同努力，目前已基本完成青年基金项目制定的目标，发展了一个适用于冻土和非冻土的通用土壤模型，设计了相应的数值求解方案。并与多层雪盖模型(SAST)耦合，特别是针对薄雪发展出合适地处理冻土和雪盖不同冻融历程的有效求解方案。最终形成冰雪圈中通用土壤-雪盖水热传输耦合模型（Coupled Soil-Snow Model-CSSM）。项目实施的两年内，负责人发表文章四篇，其中以第一作者身份发表的两篇均刊登在国际知名SCI杂志上，影响因子达到3以上。基于已取得的成果，并根据目前国际上有关冰冻圈模型研究的最新进展，申请人希望继续开展以下两方面的工作：1）发展考虑气溶胶粒子对雪盖反照率和内部辐射传输影响的CSSM；2）将改进后的土壤-雪盖耦合模型进一步与知名陆面过程模型（SSiB）耦合，并进一步将其耦合进WRF-SSiB区域气候模式中，提高SSiB及WRF对于冰冻圈下垫面的模拟能力。

The aim of the Youth Fund project to develop a new uniform soil model which is suitable for unfrozen soil and frozen soil, and to design the corresponding effective numerical scheme, have been finished through efforts from all participants. Further, the soil model has been coupled with the improved snow model (SAST) to develop the coupled soil-snow water and energy transferring model (CSSM). In the two years of project implemented, the leader published 2 papers in the international SCI magazines and the both of impact factors are above 3. Also, the leader orally presented the related research work in the EGU and AOGS meeting and received the good appraisal. Based on the finished work, applicant hope to continue doing following works: 1) coupled SNICAR model with the CSSM, which is able to model the snow albedo and radiative transfer under consideration of Black soot; 2) coupled developed CSSM to SSiB-3 and WRF-SSiB.