Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD028714 |
Atmospheric River Impacts on Greenland Ice Sheet Surface Mass Balance | |
Mattingly, K. S.1; Mote, T. L.1; Fettweis, X.2 | |
2018-08-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:16页码:8538-8560 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Belgium |
英文摘要 | Greenland Ice Sheet (GrIS) mass loss has accelerated since the turn of the twenty-first century. Several recent episodes of rapid GrIS ablation coincided with intense moisture transport over Greenland by atmospheric rivers (ARs), suggesting that these events influence the evolution of GrIS surface mass balance (SMB). ARs likely provide melt energy through several physical mechanisms, and conversely, may increase SMB through enhanced snow accumulation. In this study, we compile a long-term (1980-2016) record of moisture transport events using a conventional AR identification algorithm as well as a self-organizing map classification applied to MERRA-2 data. We then analyze AR effects on the GrIS using melt data from passive microwave satellite observations and regional climate model output. Results show that anomalously strong moisture transport by ARs clearly contributed to increased GrIS mass loss in recent years. AR activity over Greenland was above normal throughout the 2000s and early 2010s, and recent melting seasons with above-average GrIS melt feature positive moisture transport anomalies over Greenland. Analysis of individual AR impacts shows a pronounced increase in GrIS surface melt after strong AR events. AR effects on SMB are more complex, as strong summer ARs cause sharp SMB losses in the ablation zone that exceed moderate SMB gains induced by ARs in the accumulation zone during summer and in all areas during other seasons. Our results demonstrate the influence of the strongest ARs in controlling GrIS SMB, and we conclude that projections of future GrIS SMB should accurately capture these rare ephemeral events. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000445331900010 |
WOS关键词 | REGIONAL CLIMATE MODEL ; SEA-LEVEL RISE ; MOISTURE TRANSPORT ; NORTH PACIFIC ; EXTREME PRECIPITATION ; REANALYSIS PRODUCTS ; POLEWARD MOISTURE ; FUTURE CHANGES ; ARCTIC CLOUD ; MELT 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/33134 |
专题 | 气候变化 |
作者单位 | 1.Univ Georgia, Dept Geog, Climatol Res Lab, Athens, GA 30602 USA; 2.Univ Liege, Dept Geog, Lab Climatol, Liege, Belgium |
推荐引用方式 GB/T 7714 | Mattingly, K. S.,Mote, T. L.,Fettweis, X.. Atmospheric River Impacts on Greenland Ice Sheet Surface Mass Balance[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(16):8538-8560. |
APA | Mattingly, K. S.,Mote, T. L.,&Fettweis, X..(2018).Atmospheric River Impacts on Greenland Ice Sheet Surface Mass Balance.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(16),8538-8560. |
MLA | Mattingly, K. S.,et al."Atmospheric River Impacts on Greenland Ice Sheet Surface Mass Balance".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.16(2018):8538-8560. |
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