黑龙江地区淡水冰表面太阳短波辐射与云量关系的优化辨识

Identification and optimization of the relation between solar short wave radiation and cloudiness in freshwater ice of Heilongjiang area

依据文献中高纬度海冰区太阳短波辐射与云量关系的参数化方案,利用2009年、2010年两个冬季黑龙江省红旗泡水库现场观测的太阳短波辐射数据和中国气象数据共享网上下载的云量数据,以及观测点的太阳天顶角、太阳时、纬度等数据,根据最小二乘法构造参数辨识模型,用MATLAB编程求解该参数辨识模型,分析得到黑龙江地区淡水冰表面太阳短波辐射与云量关系的参数化方案.

Based on the parameterization scheme of the relationship between solar short wave radiation and cloudiness on the sea ice area of high latitude in the literature, using the solar radiation data which were observed in the winter of 2009 and 2010 at Hongqipao reservoir of Heilongjiang Province, the cloudiness date downloaded from China Meteorological Data Sharing and the date of observation point of the solar zenith angle, solar time, latitude and so on, the parameter identification model was constructed in light of the least square method.It was solved with the help of the program of MATLAB and the parameterization scheme of the relation between solar short wave radiation and cloudiness in freshwater ice of Heilongjiang area was obtained through numerical analy-sis.