基于标准化时间序列加权法的IPCC-AR4多模式集成

被引:1
作者
龚理卿 [1 ,2 ]
赵玮 [1 ]
陆尔 [1 ]
江志红 [1 ]
机构
[1] 南京信息工程大学大气科学学院气象灾害省部共建教育部重点实验室
[2] 衢州气象局
关键词
气候模式; 标准化加权集成; IPCC-AR4; 模拟和预估;
D O I
暂无
中图分类号
P435 [数值试验];
学科分类号
摘要
采用对标准化时间序列作加权的方法做多模式集成,并以相关系数与均方根误差作为衡量模式模拟预估能力的标准,将IPCC-AR4的10个气候模式模拟1961—1999年(39 a)中国降水的标准化加权集成结果与气候模式修正、Taylor函数加权集成结果进行比较,结果显示前者具有明显优势。为进一步验证这种优化的性能是否具备稳定性,将由控制阶段(1961—1999年)模式与实测数据计算得到的权重系数应用于A1B排放情景下的模式降水数据,预估研究区域2000—2012年(13 a)的降水,并与同时间段的模式修正、Taylor函数加权集成进行对比。结果表明,该集成结果在预估阶段(2000—2012年)仍优于模式修正、Taylor函数加权集成结果。
引用
收藏
页码:543 / 549
页数:7
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