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| DOI | 10.5194/tc-11-1591-2017 |
| Evaluation of Greenland near surface air temperature datasets | |
| Reeves Eyre J.E.J.; Zeng X. | |
| 发表日期 | 2017 |
| ISSN | 19940416 |
| 卷号 | 11期号:4 |
| 英文摘要 | Near-surface air temperature (SAT) over Greenland has important effects on mass balance of the ice sheet, but it is unclear which SAT datasets are reliable in the region. Here extensive in situ SAT measurements (∼1400 station-years) are used to assess monthly mean SAT from seven global reanalysis datasets, five gridded SAT analyses, one satellite retrieval and three dynamically downscaled reanalyses. Strengths and weaknesses of these products are identified, and their biases are found to vary by season and glaciological regime. MERRA2 reanalysis overall performs best with mean absolute error less than 2 °C in all months. Ice sheet-average annual mean SAT from different datasets are highly correlated in recent decades, but their 1901-2000 trends differ even in sign. Compared with the MERRA2 climatology combined with gridded SAT analysis anomalies, thirty-one earth system model historical runs from the CMIP5 archive reach ∼5 °C for the 1901-2000 average bias and have opposite trends for a number of sub-periods. © Author(s) 2017. |
| 学科领域 | air temperature; climate modeling; climatology; CMIP; data set; glacier mass balance; glaciology; ice sheet; in situ measurement; measurement method; Arctic; Greenland |
| 语种 | 英语 |
| scopus关键词 | air temperature; climate modeling; climatology; CMIP; data set; glacier mass balance; glaciology; ice sheet; in situ measurement; measurement method; Arctic; Greenland |
| 来源期刊 | Cryosphere
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/119374 |
| 作者单位 | Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, United States |
| 推荐引用方式 GB/T 7714 | Reeves Eyre J.E.J.,Zeng X.. Evaluation of Greenland near surface air temperature datasets[J],2017,11(4). |
| APA | Reeves Eyre J.E.J.,&Zeng X..(2017).Evaluation of Greenland near surface air temperature datasets.Cryosphere,11(4). |
| MLA | Reeves Eyre J.E.J.,et al."Evaluation of Greenland near surface air temperature datasets".Cryosphere 11.4(2017). |
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