Quantitative estimation of the influence factors on snow/ice albedo

作者：ZhongMing Guo,NingLian Wang,BaoShou Shen,ZhuJun Gu,HongBo Wu,YuWei Wu,AnAn Chen,Xi Jiang

摘要：Quantitative estimation of the influence of various factors,such as black carbon,snow grain,dust content,and water con tent on albedo is essential in obtaining an accurate albedo.In this paper,field measurement data,including snow grain size,density,liquid water content,and snow depth was obtained.Black carbon and dust samples were collected from the snow surface.A simultaneous observation using ASD(Analytical Spectral Devices)spectral data was employed in the Qiyi glacier located on Qilian Mountain.The measurements were compared with results obtained from the Snow,Ice,and Aerosol Radiation(SNICAR)model.Additionally,a HYbrid Single-Particle Lagrangian Integrated Trajectory(HYSPLIT)air mass backward trajectory model was used to track the source of black carbon.The simulation was found to correlate well with observed data.Liquid water content was the most influential factor of albedo among the several influencing fac tors,followed by black carbon content and snow grain size.Finally,snow density change had the least toward albedo.HYSPLIT atmospheric trajectories model can only approximately show the source of black carbon and not clearly indicate the source region of black carbon.

发文机构：Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity Institute of Earth Surface System and Hazards School of Environmental Science School of History and Tourism Key Laboratory of Meteorological Disaster of Ministry of Education

关键词：ALBEDOBLACKcarbonSNOWGRAINsizeQUANTITATIVEestimation

分类号： TG1[金属学及工艺—金属学]