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DOI | 10.1002/2017JD026809 |
The Impact of Fohn Winds on Surface Energy Balance During the 2010-2011 Melt Season Over Larsen C Ice Shelf, Antarctica | |
King, J. C.1; Kirchgaessner, A.1; Bevan, S.2; Elvidge, A. D.3; Munneke, P. Kuipers4; Luckman, A.2; Orr, A.1; Renfrew, I. A.3; van den Broeke, M. R.4 | |
2017-11-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:22 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Wales; Netherlands |
英文摘要 | We use model data from the Antarctic Mesoscale Prediction System (AMPS), measurements from automatic weather stations and satellite observations to investigate the association between surface energy balance (SEB), surface melt, and the occurrence of fohn winds over Larsen C Ice Shelf (Antarctic Peninsula) over the period November 2010 to March 2011. Fohn conditions occurred for over 20% of the time during this period and are associated with increased air temperatures and decreased relative humidity (relative to nonfohn conditions) over the western part of the ice shelf. During fohn conditions, the downward turbulent flux of sensible heat and the downwelling shortwave radiation both increase. However, in AMPS, these warming tendencies are largely balanced by an increase in upward latent heat flux and a decrease in downwelling longwave radiation so the impact of fohn on the modeled net SEB is small. This balance is highly sensitive to the representation of surface energy fluxes in the model, and limited validation data suggest that AMPS may underestimate the sensitivity of SEB and melt to fohn. There is broad agreement on the spatial pattern of melt between the model and satellite observations but disagreement in the frequency with which melt occurs. Satellite observations indicate localized regions of persistent melt along the foot of the Antarctic Peninsula mountains which are not simulated by the model. Furthermore, melt is observed to persist in these regions during extended periods when fohn does not occur, suggesting that other factors may be important in controlling melt in these regions. |
英文关键词 | Larsen Ice Shelf Fohn winds melt Antarctic |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418084500001 |
WOS关键词 | POLAR WEATHER RESEARCH ; PENINSULA ; CLIMATE ; TEMPERATURE ; MODEL |
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/32990 |
专题 | 气候变化 |
作者单位 | 1.British Antarctic Survey, Cambridge, England; 2.Swansea Univ, Dept Geog, Swansea, W Glam, Wales; 3.Univ East Anglia, Sch Environm Sci, Norwich, Norfolk, England; 4.Univ Utrecht, Inst Marine & Atmospher Res Utrecht, Utrecht, Netherlands |
推荐引用方式 GB/T 7714 | King, J. C.,Kirchgaessner, A.,Bevan, S.,et al. The Impact of Fohn Winds on Surface Energy Balance During the 2010-2011 Melt Season Over Larsen C Ice Shelf, Antarctica[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(22). |
APA | King, J. C..,Kirchgaessner, A..,Bevan, S..,Elvidge, A. D..,Munneke, P. Kuipers.,...&van den Broeke, M. R..(2017).The Impact of Fohn Winds on Surface Energy Balance During the 2010-2011 Melt Season Over Larsen C Ice Shelf, Antarctica.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(22). |
MLA | King, J. C.,et al."The Impact of Fohn Winds on Surface Energy Balance During the 2010-2011 Melt Season Over Larsen C Ice Shelf, Antarctica".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.22(2017). |
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