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shan qu ke zhao shi shu de ji suan
Author(s): 
Pages: 45-48
Year: Issue:  3
Journal: Journal of Meteorological Research and Application

Keyword:  可照时数视轨道地形遮蔽日没时太阳高度角起伏地形太阳方位角时角向径角座标;
Abstract: <正> 为了研究山区农业气候资源,分析光照资源的时空分布特征,在试验工作中,除在考察月各测点进行日照观测外,还运用图解法进行了测点实际可照时数的计算。 本文以灌阳山区为例说明山区可照时数的计算方法。计算起伏地形中的可照时数,实际上是一个确定起伏地形中日出和日没(一天中可能有几次)时间的问题。在一般情况下,由
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