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DOI | 10.1007/s00382-016-3208-2 |
Impact of spectral nudging on regional climate simulation over CORDEX East Asia using WRF | |
Tang, Jianping1,2; Wang, Shuyu1,2; Niu, Xiaorui1,2; Hui, Pinhong3; Zong, Peishu4; Wang, Xueyuan1 | |
2017-04-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 48 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | In this study, the impact of the spectral nudging method on regional climate simulation over the Coordinated Regional Climate Downscaling Experiment East Asia (CORDEX-EA) region is investigated using the Weather Research and Forecasting model (WRF). Driven by the ERA-Interim reanalysis, five continuous simulations covering 1989-2007 are conducted by the WRF model, in which four runs adopt the interior spectral nudging with different wavenumbers, nudging variables and nudging coefficients. Model validation shows that WRF has the ability to simulate spatial distributions and temporal variations of the surface climate (air temperature and precipitation) over CORDEX-EA domain. Comparably the spectral nudging technique is effective in improving the model's skill in the following aspects: (1), the simulated biases and root mean square errors of annual mean temperature and precipitation are obviously reduced. The SN3-UVT (spectral nudging with wavenumber 3 in both zonal and meridional directions applied to U, V and T) and SN6 (spectral nudging with wavenumber 6 in both zonal and meridional directions applied to U and V) experiments give the best simulations for temperature and precipitation respectively. The inter-annual and seasonal variances produced by the SN experiments are also closer to the ERA-Interim observation. (2), the application of spectral nudging in WRF is helpful for simulating the extreme temperature and precipitation, and the SN3-UVT simulation shows a clear advantage over the other simulations in depicting both the spatial distributions and inter-annual variances of temperature and precipitation extremes. With the spectral nudging, WRF is able to preserve the variability in the large scale climate information, and therefore adjust the temperature and precipitation variabilities toward the observation. |
英文关键词 | Regional climate simulation CORDEX East Asia Spectral nudging Validation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398926400014 |
WOS关键词 | MODELING SYSTEM ; BIAS-CORRECTION ; RESOLUTION ; MONSOON ; PARAMETERIZATIONS ; TEMPERATURE ; SENSITIVITY ; PERFORMANCE ; PROJECT ; REGCM4 |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/36387 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ, Sch Atmospher Sci, 163 Xianlin Rd, Nanjing 210023, Jiangsu, Peoples R China; 2.Nanjing Univ, Inst Climate & Global Change Res, Nanjing 210023, Jiangsu, Peoples R China; 3.Jiangsu Climate Ctr, Nanjing 210009, Jiangsu, Peoples R China; 4.Jiangsu Meteorol Observ, Nanjing 210008, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Tang, Jianping,Wang, Shuyu,Niu, Xiaorui,et al. Impact of spectral nudging on regional climate simulation over CORDEX East Asia using WRF[J]. CLIMATE DYNAMICS,2017,48. |
APA | Tang, Jianping,Wang, Shuyu,Niu, Xiaorui,Hui, Pinhong,Zong, Peishu,&Wang, Xueyuan.(2017).Impact of spectral nudging on regional climate simulation over CORDEX East Asia using WRF.CLIMATE DYNAMICS,48. |
MLA | Tang, Jianping,et al."Impact of spectral nudging on regional climate simulation over CORDEX East Asia using WRF".CLIMATE DYNAMICS 48(2017). |
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