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-  2014 

基于改进HASM方法的中国日照百分率的模拟

DOI: 10.11821/dlyj201407010

Keywords: HASM,日照百分率,插值,精度,中国

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Abstract:

摘要: 日照百分率作为研究日照时数及太阳辐射等的重要因素之一,其模拟结果的好坏,直接关系到相关领域的研究应用。而高精度曲面建模方法(HASM)是近几年发展起来的用于生态建模的高精度曲面模拟方法。首先对现有的HASM进行改进,给出建立在完整理论基础之上、精度更高的曲面建模方法,并记为HASM.MOD;以高斯合成曲面为数值试验对象,验证HASM与HASM.MOD的模拟精度;最后,根据全国1951-2010 年752 个气象站点的月平均日照百分率数据,运用HASM.MOD研究近60 年月平均日照百分率的分布状况,同时比较了HASM.MOD、HASM、Kriging 和IDW法的插值精度。数值试验和实例验证结果表明,HASM.MOD的模拟精度最高。用该方法所提供的日照百分率数据可作为基础地理数据供相关研究应用

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