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藏北地区冬季降雪对地面反射率的影响
引用本文:沈志宝.藏北地区冬季降雪对地面反射率的影响[J].高原气象,1996,15(2):165-171.
作者姓名:沈志宝
作者单位:中国科学院兰州高原大气物理研究所
摘    要:藏北地区是冬季青藏高原上降雪次数较多、降雪量较大、可能出现较长时间地面积雪的地区之一。每次较强的隆雪均可造成该地区地面反射率一次较长时间异常,从而改变地面热源的强度和符号。

关 键 词:藏北地区  冬季  降雪量  地面反射率

THE INFLUENCE OF SNOWFALL ON THE SURFACE ALBEDO IN THE NORTHERN XIZANG(TIBET) IN WINTER
Shen Zhibao.THE INFLUENCE OF SNOWFALL ON THE SURFACE ALBEDO IN THE NORTHERN XIZANG(TIBET) IN WINTER[J].Plateau Meteorology,1996,15(2):165-171.
Authors:Shen Zhibao
Abstract:Northern Xizang(Tibet) is one of the region in Qinghai-Xizang Plateau where the snowfall frequency and the intensity are higher, and the snow cover may continue for longer time after a heavy snow in winter. Each snowfall may cause the abnormality of surface albedo for a long time. Studies on the observed data of the surface heat source experiment over Qinghai-Xizang Plateau during the period from November 1982 to February 1983 found that there is a good relationship among the abnormality and its duration of surface albedo and snowfall under the condition of low air and surface temperature in winter. An empirical formula was obtained for expressing this relationship.
Keywords:Northern Xizang(Tibet)  Winter  Snowfall  Surface albedo  
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