Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD030052 |
The Influence of Weather Systems in Controlling Mass Balance in the Southern Alps of New Zealand | |
Cullen, Nicolas J.1,2; Gibson, Peter B.3; Moelg, Thomas2; Conway, Jonathan P.4; Sirguey, Pascal5; Kingston, Daniel G.1 | |
2019-04-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:8页码:4514-4529 |
文章类型 | Article |
语种 | 英语 |
国家 | New Zealand; Germany; USA |
英文摘要 | The recent advance of some fast-responding glaciers in New Zealand demonstrates that regional variability in atmospheric circulation can counteract the effects of global warming. Until recently, a key challenge in quantifying how weather systems influence glaciers has been the lack of observational data from high-elevation sites in the Southern Alps. Using high-quality meteorological and glaciological observations from Brewster Glacier over four summers and two winters, a physically based mass balance model is used to resolve daily ablation and solid precipitation. Composite analysis confirms ablation is largely controlled by changes in meridional airflow, with high ablation associated with north to northwest airflow, while low ablation is associated with south to southwest airflow. The largest snowfall events in the cool season also occur during northwesterly airflow, highlighting the importance of seasonality (i.e., whether an event occurs in the ablation or accumulation period) for mass balance. Application of a synoptic weather typing approach commonly used for the New Zealand region, known broadly as Kidson weather types, revealed that three established regimes (trough, zonal, and blocking) are less effective in resolving variability in ablation and snowfall than a simple procedure that groups weather types using geostrophic flow direction. The frequency of four weather types can explain approximately 40% of the variance in mass balance over a 42-year period. This highlights that future regional variability or trends in large-scale circulation and their seasonality, superimposed on background warming, will be important in shaping glacier mass balance in the coming decades. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000469071400015 |
WOS关键词 | FRANZ-JOSEF-GLACIER ; SEA-SURFACE TEMPERATURE ; BREWSTER GLACIER ; ATMOSPHERIC CIRCULATION ; INTERANNUAL VARIATION ; SYNOPTIC CLIMATOLOGY ; ENERGY-BALANCE ; SPLIT JET ; ABLATION ; VARIABILITY |
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/182471 |
专题 | 气候变化 |
作者单位 | 1.Univ Otago, Sch Geog, Dunedin, New Zealand; 2.Friedrich Alexander Univ Erlangen Nurnberg FAU, Inst Geog, Climate Syst Res Grp, Erlangen, Germany; 3.CALTECH, Jet Prop Lab, Pasadena, CA USA; 4.Natl Inst Water & Atmospher Res, Christchurch, New Zealand; 5.Univ Otago, Natl Sch Surveying, Dunedin, New Zealand |
推荐引用方式 GB/T 7714 | Cullen, Nicolas J.,Gibson, Peter B.,Moelg, Thomas,et al. The Influence of Weather Systems in Controlling Mass Balance in the Southern Alps of New Zealand[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(8):4514-4529. |
APA | Cullen, Nicolas J.,Gibson, Peter B.,Moelg, Thomas,Conway, Jonathan P.,Sirguey, Pascal,&Kingston, Daniel G..(2019).The Influence of Weather Systems in Controlling Mass Balance in the Southern Alps of New Zealand.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(8),4514-4529. |
MLA | Cullen, Nicolas J.,et al."The Influence of Weather Systems in Controlling Mass Balance in the Southern Alps of New Zealand".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.8(2019):4514-4529. |
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