摘要
本文应用天空辐射表对三江平原的太阳辐射能进行了测定,实验期间到达三江池塘水面的太阳辐射能为1729047.9kJ/m^2,其中59.5％为直接辐射,40.5％为散射辐射,碧空条件下,各种辐射通量的日变化取决于太阳高度的日变化,都为一半峰曲线。各辐射通量的季节变化除与太阳高度角有关外,还与云量有关。总辐射,散射辐射、直接辐射和反射辐射的半月总量最大值都出现在6月下旬,分别为308822.6kJ/m^2,120621.7Jk/m^2,188200.8kJ/m^2,25489.2kJ/m^2,这主要是由于6月下旬天气晴朗,大气透明度高的缘故。
The solar and sky radiation is measured with sky radiation meter. the solar and sky radiation received by the surface of the pond is about 1729047.9kJ/m^2, solar radiation makes up 59.5% and sky radiation counts for 40.5% during experiment time. In the clear days, The diel changes of total, solar, sky and reflected radiations depend on the solar altitude, all of them show in single peak curve. The seasonal changes of total, solar, sky and reflected radiations have relation to the solar altitude and cloud amount. the peak value appears in second half of June and about 308822.6kJ/m^2, 120621.7kJ/m^2, 188200.8kJ/m^2 and 25489.2kJ/m^2, respectively, the reason is that most of times in June the sky is clear and the turbidity of atmosphere is high.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1990年第S3期213-218,共6页
Journal of Northeast Forestry University
关键词
池塘
生态系统
能量环境
Pond
Ecosystem
Energy environment
