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DOI | 10.1007/s00382-017-3581-5 |
Automated parameter tuning applied to sea ice in a global climate model | |
Roach, Lettie A.1,2; Tett, Simon F. B.2; Mineter, Michael J.2; Yamazaki, Kuniko2,3; Rae, Cameron D.2,4 | |
2018 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 50页码:51-65 |
文章类型 | Article |
语种 | 英语 |
国家 | New Zealand; Scotland; England |
英文摘要 | This study investigates the hypothesis that a significant portion of spread in climate model projections of sea ice is due to poorly-constrained model parameters. New automated methods for optimization are applied to historical sea ice in a global coupled climate model (HadCM3) in order to calculate the combination of parameters required to reduce the difference between simulation and observations to within the range of model noise. The optimized parameters result in a simulated sea-ice time series which is more consistent with Arctic observations throughout the satellite record (1980-present), particularly in the September minimum, than the standard configuration of HadCM3. Divergence from observed Antarctic trends and mean regional sea ice distribution reflects broader structural uncertainty in the climate model. We also find that the optimized parameters do not cause adverse effects on the model climatology. This simple approach provides evidence for the contribution of parameter uncertainty to spread in sea ice extent trends and could be customized to investigate uncertainties in other climate variables. |
英文关键词 | Optimization Sea ice Parameters Climate model |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000422908700004 |
WOS关键词 | COUPLED CLIMATE ; OCEAN ; UNCERTAINTY ; CIRCULATION ; PREDICTIONS ; SENSITIVITY ; SIMULATION ; ENSEMBLE ; IMPACT ; EXTENT |
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/36128 |
专题 | 气候变化 |
作者单位 | 1.Natl Inst Water & Atmospher Res, 301 Evans Bay Parade, Wellington, New Zealand; 2.Univ Edinburgh, Sch GeoSci, Crew Bldg,Alexander Crum Brown Rd, Edinburgh EH9 3FF, Midlothian, Scotland; 3.Met Off, Fitzroy Rd, Exeter EX1 3PB, Devon, England; 4.Univ Cambridge, Dept Chem, Ctr Atmospher Sci, Lensfield Rd, Cambridge CB2 1EW, England |
推荐引用方式 GB/T 7714 | Roach, Lettie A.,Tett, Simon F. B.,Mineter, Michael J.,et al. Automated parameter tuning applied to sea ice in a global climate model[J]. CLIMATE DYNAMICS,2018,50:51-65. |
APA | Roach, Lettie A.,Tett, Simon F. B.,Mineter, Michael J.,Yamazaki, Kuniko,&Rae, Cameron D..(2018).Automated parameter tuning applied to sea ice in a global climate model.CLIMATE DYNAMICS,50,51-65. |
MLA | Roach, Lettie A.,et al."Automated parameter tuning applied to sea ice in a global climate model".CLIMATE DYNAMICS 50(2018):51-65. |
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