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通过对2006年和2007年暖季消融期七一冰川反照率的观测资料分析,基于冰川反照率的变化规律及其影响因素,根据实测资料的统计建模和验证,初步给出了具有试验基础的冰川反照率多因子参数化公式,其时间分辨率为1h.经检验,2006年和2007年考察期间冰川反照率的模拟值和观测值序列之间的相关系数分别达到了0.901和0.973,平均绝对误差MAE值分别为0.073和0.038,RMSE值分别为0.089和0.052.回归拟合方法得到的冰川反照率参数化公式能较好的反映冰川反照率的日变化和日际变化情况,有望用于冰川表面能量物质平衡的模型模拟之中.
Based on the observation data of glacier albedo of July Glacier during the ablation period of 2006 and 2007, based on the variation law of glacier albedo and its influencing factors, based on the statistical modeling and verification of measured data, The glacier albedo multi-factor parameterization formula, the time resolution of 1h.According to the test, the correlation coefficient between the simulated glacier albedo and the observed sequence in 2006 and 2007 were 0.901 and 0.973 respectively, the average The absolute error MAE values were 0.073 and 0.038, respectively, and the RMSE values were 0.089 and 0.052, respectively. The parameterization formula of glacier albedo obtained by regression fitting method can better reflect the diurnal variation and the change of the albedo of glacier, which is expected to be used in Among the model simulations of glacial surface energy mass balance.