The variation characteristics of radiation balance and surface albedo in Wayanshan Wetland in the Qinghai Lake watershed
Based on the solar radiation data observed from May 2014 to November 2015 in the Wayanshan Wetland, Qinghai Lake w atershed, a comprehensive analysis of the solar radiation w as made in this study.The results show ed that the maximum net radiation and global radiation in the Wayanshan Wetland appeared in July and the minimum values appeared in December.The maximum atmospheric long-w ave radiation appeared in August and the minimum value appeared in December.The maximum ground long-w ave radiation appeared in July and the minimum value appeared in February.The cloudy day had obviously decreased the global radiation and obviously increased the atmospheric long-w ave radiation, but to net radiation and ground long-w ave radiation it had different effect in different seasons, w ith great seasonal difference in ground long-w ave radiation and net radiation.The annual average value of surface albedo in the Wayanshan Wetland w as 0.26.Under no snow cover condition, the surface albedo in freezing period w as significantly greater than that in ablation period, w ith the maximum value appeared in December.The average value of summer surface albedo in Wayanshan Wetland w as0.185, much smaller than that in Tanggula Station.The underlying surface of the tw o stations w as all meadow.In w arm season, soil moisture w as also an important factor affecting surface albedo of alpine w etland, and albedo decreased w ith increase of soil w ater content.
radiation balancesurface albedoQinghai Lake watershedWayanshan Wetland
NETL
NSTL
万方数据
维普
