The color of melt ponds on Arctic sea ice
The color of melt ponds on Arctic sea ice
复制标题
北极海冰融化池塘的颜色
DOI：
10.5194/tc-12-1331-2018
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发表时间：
2017-08
期刊：
影响因子：
5.2
通讯作者：
Heygster Georg
中科院分区：
文献类型：
--
作者：
Lu Peng;Leppäranta Matti;Cheng Bin;Li Zhijun;Istomina Larysa;Heygster Georg
Abstract. Pond color, which creates the visual appearance of melt ponds on Arctic sea ice in summer, is quantitatively investigated using a two-stream radiative transfer model for ponded sea ice. The upwelling irradiance from the pond surface is determined and then its spectrum is transformed into RGB (red, green, blue) color space using a colorimetric method. The dependence of pond color on various factors such as water and ice properties and incident solar radiation is investigated. The results reveal that increasing underlying ice thickness Hi enhances both the green and blue intensities of pond color, whereas the red intensity is mostly sensitive to Hi for thin ice (Hi 1.5 m), similar to the behavior of melt-pond albedo. The distribution of the incident solar spectrum F0 with wavelength affects the pond color rather than its intensity. The pond color changes from dark blue to brighter blue with increasing scattering in ice, and the influence of absorption in ice on pond color is limited. The pond color reproduced by the model agrees with field observations for Arctic sea ice in summer, which supports the validity of this study. More importantly, the pond color has been confirmed to contain information about meltwater and underlying ice, and therefore it can be used as an index to retrieve Hi and Hp. Retrievals of Hi for thin ice (Hi
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影响因子：
--
作者：
D. Perovich
通讯作者：
D. Perovich
影响因子：
--
作者：
D. Flocco;D. Feltham;E. Bailey;D. Schroeder
通讯作者：
D. Flocco;D. Feltham;E. Bailey;D. Schroeder
影响因子：
3.4
作者：
R. Kwok
通讯作者：
R. Kwok
DOI：
10.5194/tc-7-763-2013
发表时间：
2012-09
期刊：
The Cryosphere
影响因子：
--
作者：
M. Nicolaus;C. Katlein
通讯作者：
M. Nicolaus;C. Katlein
影响因子：
--
作者：
B. Light;G. Maykut;T. Grenfell
通讯作者：
B. Light;G. Maykut;T. Grenfell