Inter-Model Differences in the Relationships between Downward Shortwave Radiation and Air Temperatures Derived from Dynamical and Statistical Downscaling Models
Inter-Model Differences in the Relationships between Downward Shortwave Radiation and Air Temperatures Derived from Dynamical and Statistical Downscaling Models
复制标题
动态和统计降尺度模型推导的下行短波辐射与气温之间关系的模型间差异
DOI：
10.2151/jmsj.2012-b06
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发表时间：
2012
影响因子：
3.1
通讯作者：
M. Nishimori
中科院分区：
文献类型：
--
作者：
R. Yoshida;T. Iizumi;M. Nishimori
本研究从四个动力模式和一个统计模式对1985-2004年日本上空向下短波辐射(SD)和日平均、最高和最低地面气温(TM、TX和TN)进行了评估。这些变量SD、TM、TX和TN通常用作影响模型的输入数据，例如作物生长模型。因此，在将缩小尺度的气候数据应用于影响模式模拟之前，对这些变量的评估是必不可少的。除统计模型外，其他模型都显著高估了全年的SD，而温度变量的区域平均季节变化被准确地模拟出来。另一方面，统计模式较好地模拟了SD和气温的区域平均季节变化。对于面积和时间平均值，也观察到了这些趋势。动力学模式在SD偏差和每个温度变量偏差之间的关系中发现的不一致归因于较大的模式间差异，如辐射方案、亚网格尺度云参数化和陆面方案的差异。
This study evaluated the downscaled downward shortwave radiation (Sd ) and daily mean, maximum, and minimum surface air temperatures (Tm, Tx, and Tn) over Japan derived from four dynamical models and one statistical model for the period 1985–2004. These variables, Sd , Tm, Tx, and Tn, are often used as input data for impact models, such as crop growth models. Therefore, the evaluation of these variables is essential prior to the application of the downscaled climate data to impact model simulation. All models except for the statistical model remarkably overestimated the Sd throughout the year, whereas the area-averaged seasonal change of the temperature variables was accurately simulated. On the other hand, the statistical model accurately simulated the area-averaged seasonal change of Sd and temperatures. These tendencies were also observed for the areaand time-averaged values. The inconsistency found for dynamical models in the relationship between the Sd bias and each of the temperature variable biases is attributed to the large inter-model di¤erences, such as the di¤erence of the radiation scheme, the sub-grid scale cloud parameterization, and the land surface scheme.
气候降尺度是预测当地气候变化影响的不确定性来源
影响因子：
3.1
作者：
Iizumi;T.;F. Uno;and M. Nishimori
通讯作者：
and M. Nishimori
影响因子：
3.2
作者：
Chen, F;Dudhia, J
通讯作者：
Dudhia, J