气候变化领域集成服务门户(CCPortal): Optical properties of sea ice doped with black carbon -An experimental and radiative-Transfer modelling comparison

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DOI	10.5194/tc-11-2867-2017
	Optical properties of sea ice doped with black carbon -An experimental and radiative-Transfer modelling comparison
	Marks A.A.; Lamare M.L.; King M.D.
发表日期	2017
ISSN	19940416
卷号	11 期号:6
英文摘要	Radiative-Transfer calculations of the light reflectivity and extinction coefficient in laboratory-generated sea ice doped with and without black carbon demonstrate that the radiative-Transfer model TUV-snow can be used to predict the light reflectance and extinction coefficient as a function of wavelength. The sea ice is representative of first-year sea ice containing typical amounts of black carbon and other light-Absorbing impurities. The experiments give confidence in the application of the model to predict albedo of other sea ice fabrics. Sea ices, 30 cm thick, were generated in the Royal Holloway Sea Ice Simulator (-2000 L tanks) with scattering cross sections measured between 0.012 and 0.032m2 kg-1 for four ices. Sea ices were generated with and without -5 cm upper layers containing particulate black carbon. Nadir reflectances between 0.60 and 0.78 were measured along with extinction coefficients of 0.1 to 0.03 cm-1 (e- folding depths of 10-30 cm) at a wavelength of 500 nm. Values were measured between light wavelengths of 350 and 650 nm. The sea ices generated in the Royal Holloway Sea Ice Simulator were found to be representative of natural sea ices. Particulate black carbon at mass ratios of -75, -150 and -300ngg-1 in a 5 cm ice layer lowers the albedo to 97, 90 and 79% of the reflectivity of an undoped "clean" sea ice (at a wavelength of 500 nm). © Author(s) 2017.
学科领域	albedo; atmospheric modeling; black carbon; comparative study; experimental study; nadir; optical property; particulate matter; radiative transfer; reflectivity; sea ice; simulator
语种	英语
scopus关键词	albedo; atmospheric modeling; black carbon; comparative study; experimental study; nadir; optical property; particulate matter; radiative transfer; reflectivity; sea ice; simulator
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119291
作者单位	Department of Earth Sciences, Royal Holloway University of London, Egham, Surrey, TW200EX, United Kingdom
推荐引用方式 GB/T 7714	Marks A.A.,Lamare M.L.,King M.D.. Optical properties of sea ice doped with black carbon -An experimental and radiative-Transfer modelling comparison[J],2017,11(6).
APA	Marks A.A.,Lamare M.L.,&King M.D..(2017).Optical properties of sea ice doped with black carbon -An experimental and radiative-Transfer modelling comparison.Cryosphere,11(6).
MLA	Marks A.A.,et al."Optical properties of sea ice doped with black carbon -An experimental and radiative-Transfer modelling comparison".Cryosphere 11.6(2017).