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DOI | 10.1002/2016JD025674 |
Using remotely sensed data from AIRS to estimate the vapor flux on the Greenland ice sheet: Comparisons with observations and a regional climate model | |
Boisvert, Linette N.1; Lee, Jae N.2; Lenaerts, Jan T. M.3; Noel, Brice3; van den Broeke, Michiel R.3; Nolin, Anne W.4 | |
2017 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Netherlands |
英文摘要 | Mass loss from the Greenland ice sheet (GrIS) in recent years has been dominated by runoff from surface melt. It is currently being studied extensively, while little interest has been given to the smallest component of surface mass balance (SMB): the vapor flux. Although poorly understood, it is not negligible and could potentially play a larger role in SMB in a warming climate where temperature, relative humidity, and precipitation changes remain uncertain. Here we present an innovative approach to estimate the vapor flux using the Atmospheric Infrared Sounder (AIRS) version 6 data and a modified vapor flux model (BMF13) over the GrIS between 2003 and 2014. One modification to the BMF13 model includes a new Multiangle Imaging SpectroRadiometer surface aerodynamic roughness product, which likely produces more accurate estimates of the drag coefficient on the ice sheet. When comparing AIRS data with GC-Net and Programme for Monitoring of the Greenland Ice Sheet automatic weather station observations of skin temperature, near-surface air temperature, and humidity, they agree within 2K, 2.68K, and 0.34 g kg(-1). Largest differences occur in the ablation zone where there is significant subgrid heterogeneity. Overall, the average vapor flux from the GrIS between 2003 and 2014 was found to be 14.6 +/- 3.6 Gt yr(-1). No statistically significant trends were found during the data record. This data set is compared to the Regional Atmospheric Climate Model (RACMO2.3) vapor flux, and BMF13 produced smaller vapor fluxes in the summer (similar to 0.05 Gt d(-1)) and slightly more deposition in the winter (similar to 9.4 x 10(-3) Gt d(-1)). Annually, differences between BMF13 and RACMO2.3 were only 30 +/- 15%. |
英文关键词 | sublimation surface mass balance AIRS Greenland RACMO GC-Net |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000393877800012 |
WOS关键词 | PARAMETERIZING TURBULENT EXCHANGE ; ATMOSPHERIC SURFACE-LAYER ; MASS-BALANCE ; MELT EXTENT ; SEA-ICE ; PROFILE RELATIONSHIPS ; BOUNDARY-LAYER ; ENERGY-BALANCE ; ERA-INTERIM ; ANTARCTICA |
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/32372 |
专题 | 气候变化 |
作者单位 | 1.Univ Maryland, ESSIC, College Pk, MD 20742 USA; 2.Univ Maryland Baltimore Cty, JCET, Baltimore, MD USA; 3.Univ Utrecht, Inst Marine & Atmospher Res, Utrecht, Netherlands; 4.Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA |
推荐引用方式 GB/T 7714 | Boisvert, Linette N.,Lee, Jae N.,Lenaerts, Jan T. M.,et al. Using remotely sensed data from AIRS to estimate the vapor flux on the Greenland ice sheet: Comparisons with observations and a regional climate model[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(1). |
APA | Boisvert, Linette N.,Lee, Jae N.,Lenaerts, Jan T. M.,Noel, Brice,van den Broeke, Michiel R.,&Nolin, Anne W..(2017).Using remotely sensed data from AIRS to estimate the vapor flux on the Greenland ice sheet: Comparisons with observations and a regional climate model.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(1). |
MLA | Boisvert, Linette N.,et al."Using remotely sensed data from AIRS to estimate the vapor flux on the Greenland ice sheet: Comparisons with observations and a regional climate model".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.1(2017). |
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