Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-4715-2018 |
Precipitation regimes over central Greenland inferred from 5 years of ICECAPS observations | |
Pettersen, Claire1; Bennartz, Ralf1,2; Merrelli, Aronne J.1; Shupe, Matthew D.3,4; Turner, David D.4; Walden, Von P.5 | |
2018-04-09 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:7页码:4715-4735 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A novel method for classifying Arctic precipitation using ground based remote sensors is presented. Using differences in the spectral variation of microwave absorption and scattering properties of cloud liquid water and ice, this method can distinguish between different types of snowfall events depending on the presence or absence of condensed liquid water in the clouds that generate the precipitation. The classification reveals two distinct, primary regimes of precipitation over the Greenland Ice Sheet (GIS): one originating from fully glaciated ice clouds and the other from mixed-phase clouds. Five years of co-located, multi-instrument data from the Integrated Characterization of Energy, Clouds, Atmospheric state, and Precipitation at Summit (ICECAPS) are used to examine cloud and meteorological properties and patterns associated with each precipitation regime. The occurrence and accumulation of the precipitation regimes are identified and quantified. Cloud and precipitation observations from additional ICECAPS instruments illustrate distinct characteristics for each regime. Additionally, reanalysis products and back-trajectory analysis show different synoptic-scale forcings associated with each regime. Precipitation over the central GIS exhibits unique microphysical characteristics due to the high surface elevations as well as connections to specific large-scale flow patterns. Snowfall originating from the ice clouds is coupled to deep, frontal cloud systems advecting up and over the southeast Greenland coast to the central GIS. These events appear to be associated with individual storm systems generated by low pressure over Baffin Bay and Greenland lee cyclogenesis. Snowfall originating from mixed-phase clouds is shallower and has characteristics typical of supercooled cloud liquid water layers, and slowly propagates from the south and southwest of Greenland along a quiescent flow above the GIS. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429473600001 |
WOS关键词 | NORTH-ATLANTIC OSCILLATION ; LIQUID WATER PATH ; ICE-SHEET ; MICROWAVE RADIOMETERS ; SNOW ACCUMULATION ; DATA ASSIMILATION ; MASS-BALANCE ; CLIMATE ; RADAR ; HYDROMETEORS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/30541 |
专题 | 地球科学 |
作者单位 | 1.Univ Wisconsin, Space Sci & Engn Ctr, Madison, WI USA; 2.Vanderbilt Univ, 221 Kirkland Hall, Nashville, TN 37235 USA; 3.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 4.NOAA, Earth Syst Res Lab, Boulder, CO USA; 5.Washington State Univ, Pullman, WA 99164 USA |
推荐引用方式 GB/T 7714 | Pettersen, Claire,Bennartz, Ralf,Merrelli, Aronne J.,et al. Precipitation regimes over central Greenland inferred from 5 years of ICECAPS observations[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(7):4715-4735. |
APA | Pettersen, Claire,Bennartz, Ralf,Merrelli, Aronne J.,Shupe, Matthew D.,Turner, David D.,&Walden, Von P..(2018).Precipitation regimes over central Greenland inferred from 5 years of ICECAPS observations.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(7),4715-4735. |
MLA | Pettersen, Claire,et al."Precipitation regimes over central Greenland inferred from 5 years of ICECAPS observations".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.7(2018):4715-4735. |
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