《Table 5 Trends of sea ice thickness driven by sensible heat in the Arctic Ocean for the period 1979
本系列图表出处文件名:随高清版一同展现
《Satellite-observed trends in the Arctic sea ice concentration for the period 1979–2016》
The results refl ected by table 5 are based on ice growth model in ice-covered areas and show that sea ice estimated decrease rates are in tune with the observed results.All subregions of the Arctic have varying degrees of ablation due to air temperature increase during the period 1979–2016,especially the Kara Sea and Barents Sea.In the Kara Sea,0.132degree warmer air gives 0.826 W/m 2 extra sensible heat fl ux on sea ice,reducing 0.021 m sea ice in a year,and 0.222 degree SAT rise transfers 1.646 W/m 2extra sensible heat fl ux into sea ice,reducing 0.043 m sea ice growth in one autumn.Besides,the sea ice rapidest decreasing time in the entire Arctic sea icecovered areas is autumn in which 0.165 degree warmer of SAT reduces 1.351 W/m 2 sensible heat into the air,retreats 0.031 m sea ice.All of these data above imply that the eff ects of climate parameters on sea ice are very signifi cant.The estimate caculation of ice growth reduction due to climate parameters neglected the infl uences of latent heat fl ux,solar radiation fl ux,long-wave fl ux of cloud,long-wave fl ux of ice,etc.Besides,T s and h Iwe used in formulas are estimates,which would lead to some errors for the result,while it can also exhibit the eff ects of climate parameters on sea ice to some extent.In fact,the Arctic Ocean is not covered with ice throughout the year,and there will be a large area of open water in summer.Thus,we calculated the ice growth based on the ice growth model in ice-free areas.Compared with the ice growth model in ice-covered areas(Eq.4),this formula is without thermal conductivity,and the results of the ice growth reductions are shown in Table 6.Therefore,the reasonable estimated value should be between the two extreme cases(no ice case and ice-covered case).
图表编号 | XD0034428800 严禁用于非法目的 |
---|---|
绘制时间 | 2019.01.01 |
作者 | WANG Yunhe、BI Haibo、HUANG Haijun、LIU Yanxia、LIU Yilin、LIANG Xi、FU Min、ZHANG Zehua |
绘制单位 | CAS Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences、University of Chinese Academy of Sciences、CAS Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences |
更多格式 | 高清、无水印(增值服务) |
查看“Table 5 Trends of sea ice thickness driven by sensible heat in the Arctic Ocean for the period 1979–2016 based on the ic”的人还看了
- 表3 不同含冰类型土的视比热值 (单位:J·kg-1·℃-1) Table 3Specific heat values of the soils w ith various ice content (unit:J·kg-1·℃-1)
- Table 1 Magnitude of average air temperature trends globally (IPCC, Climate Change 2013) and in China dur-ing different