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区域气候模式REMO对中国气温和降水模拟能力的评估 被引量:6
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作者 徐经纬 徐敏 +4 位作者 蒋熹 ArmelleReca C.Remedio Dmitry V.Sein Nikolay Koldunov daniela jacob 《气候变化研究进展》 CSCD 北大核心 2016年第4期286-293,共8页
采用泰勒图和偏差分析等统计方法,评估分析了德国区域气候模式(REMO)对中国1989—2008年气温和降水的模拟能力。结果表明:REMO气温模拟值与观测值空间相关系数为0.94,降水空间相关系数较低(0.42),气温模拟结果明显优于降水;从空间偏差上... 采用泰勒图和偏差分析等统计方法,评估分析了德国区域气候模式(REMO)对中国1989—2008年气温和降水的模拟能力。结果表明:REMO气温模拟值与观测值空间相关系数为0.94,降水空间相关系数较低(0.42),气温模拟结果明显优于降水;从空间偏差上看,在中国大部分地区,REMO模拟的气温高于观测值,偏差在±4℃以内,青藏高原整体有明显的-4^-2℃的冷偏差;模拟的降水值则高于观测值,空间偏差分布较均匀,中国大部分地区偏差在±300mm之内;除青藏高原、华南和西南地区外,REMO能较准确地反映出中国气温和降水的空间分布特征,其中华北和东北地区模拟效果最好;REMO对夏季气温和冬季降水的模拟能力相对较好;REMO在地形起伏较大地区的模拟能力有待提高。 展开更多
关键词 区域气候模式(REMO) 气温 降水 模拟能力评估
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Influence of the Boundary Forcing on the Internal Variability of a Regional Climate Model
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作者 Kevin Sieck daniela jacob 《American Journal of Climate Change》 2016年第3期373-382,共11页
The internal variability of a ten-member ensemble of the regional climate model REMO over Europe is investigated. It is shown that the annual cycle of internal variability behaves differently compared to earlier studi... The internal variability of a ten-member ensemble of the regional climate model REMO over Europe is investigated. It is shown that the annual cycle of internal variability behaves differently compared to earlier studies that focused on other regions. To gain better insight into the dependence of the internal variability on the boundary forcing variability, a circulation type classification is performed on the forcing data. It can be shown that especially in the winter season internal variability is dependent on the circulation type included in the boundary forcing, whereas in the summer season the level and pattern of internal variability is rather independent from the circulation type of the driving field. It is concluded that for Europe the internal variability of REMO in winter is governed by circulation patterns related to the North-Atlantic Oscillation, whereas in summer local processes play a bigger role. 展开更多
关键词 Regional Climate Model Internal Variability Boundary Forcing Circulation Type Classification
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