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DOI | 10.1002/2017JD027328 |
Retrievals of the Far Infrared Surface Emissivity Over the Greenland Plateau Using the Tropospheric Airborne Fourier Transform Spectrometer (TAFTS) | |
Bellisario, Christophe1; Brindley, Helen E.1; Murray, Jonathan E.2; Last, Alan2; Pickering, Juliet2; Harlow, R. Chawn3; Fox, Stuart3; Fox, Cathryn2,3; Newman, Stuart M.3; Smith, Maureen4; Anderson, Doug4; Huang, Xianglei5; Chen, Xiuhong5 | |
2017-11-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
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; USA |
英文摘要 | The Tropospheric Airborne Fourier Transform Spectrometer measured near surface upwelling and downwelling radiances within the far infrared (FIR) over Greenland during two flights in March 2015. Here we exploit observations from one of these flights to provide in situ estimates of FIR surface emissivity, encompassing the range 80-535cm(-1). The flight campaign and instrumental setup are described as well as the retrieval method, including the quality control performed on the observations. The combination of measurement and atmospheric profile uncertainties means that the retrieved surface emissivity has the smallest estimated error over the range 360-535cm(-1) (18.7-27.8m), lying between 0.89 and 1 with an associated error that is of the order 0.06. Between 80 and 360cm(-1), the increasing opacity of the atmosphere, coupled with the uncertainty in the atmospheric state, means that the associated errors are larger and the emissivity values cannot be said to be distinct from 1. These FIR surface emissivity values are, to the best of our knowledge, the first ever from aircraft-based measurements. We have compared them to a recently developed theoretical database designed to predict the infrared surface emissivity of frozen surfaces. When considering the FIR alone, we are able to match the retrievals within uncertainties. However, when we include contemporaneous retrievals from the mid-infrared (MIR), no single theoretical representation is able to capture the FIR and MIR behaviors simultaneously. Our results point toward the need for model improvement and further testing, ideally including in situ characterization of the underlying surface conditions. |
英文关键词 | surface far infrared emissivity |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418084500018 |
WOS关键词 | WATER-VAPOR CONTINUUM ; RADIATIVE PROPERTIES ; SNOW SURFACE ; AIRCRAFT ; ICE ; REFLECTANCE ; PERFORMANCE ; VALIDATION ; SPECTRUM ; CLIMATE |
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/32862 |
专题 | 气候变化 |
作者单位 | 1.Imperial Coll London, Space & Atmospher Phys Grp, Natl Ctr Earth Observat, London, England; 2.Imperial Coll London, Space & Atmospher Phys Grp, London, England; 3.Met Off, Exeter, Devon, England; 4.Facil Airborne Atmospher Measurements FAAM, Cranfield, Beds, England; 5.Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI 48109 USA |
推荐引用方式 GB/T 7714 | Bellisario, Christophe,Brindley, Helen E.,Murray, Jonathan E.,et al. Retrievals of the Far Infrared Surface Emissivity Over the Greenland Plateau Using the Tropospheric Airborne Fourier Transform Spectrometer (TAFTS)[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(22). |
APA | Bellisario, Christophe.,Brindley, Helen E..,Murray, Jonathan E..,Last, Alan.,Pickering, Juliet.,...&Chen, Xiuhong.(2017).Retrievals of the Far Infrared Surface Emissivity Over the Greenland Plateau Using the Tropospheric Airborne Fourier Transform Spectrometer (TAFTS).JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(22). |
MLA | Bellisario, Christophe,et al."Retrievals of the Far Infrared Surface Emissivity Over the Greenland Plateau Using the Tropospheric Airborne Fourier Transform Spectrometer (TAFTS)".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.22(2017). |
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