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Based on one-dimensional sea ice column model Icepack, albedo and depth of melt pond were simulated. Atmospheric forcing data were collected from ICE06, a long-term ice station established during the Sixth Chinese National Arctic Research Expedition in 2014 in which the radiation and meteorological parameters of three melt ponds were continuously observed. In this paper, observed melt pond depth and thickness of sea ice under ponds were used as initial conditions. Furthermore, the calculation of sea ice freeboard in the melt pond scheme of level ice was improved by considering the effect of melt pond fraction. Consequently, by improving the formula of the maximum depth of melt pond above sea ice, simulation of melt pond albedo as well as other related parameters were successfully realized. Additionally, the inconsistency between the proportion coefficient of the incident solar radiation component and the weight coefficient of the corresponding albedo component was modified. The average errors between the simulated and observed albedo of the three ponds in the standard experiments were 0.01, 0.05 and 0.13, respectively. The sensitivity experiment results for the incident radiation proportion suggested that when the proportion of visible radiation increased by 8%, the simulation results of the melt pond albedo increased by 6%−8%. Results of the melt pond refreezing experiments suggested that when the thickness of lid ice is less than 0.02 m, the increase of simulated ice albedo is less than 0.006, resulting in a decrease of surface energy budget by about 1.1 W/m2. It is pointed out that providing an accurate proportion of incident radiation is necessary to improve the simulation of Arctic sea ice albedo. Furthermore, there are still some physical processes which need to be improved in Icepack/CICE model such as melt pond surface refreezing schemes, surface heat budget calculation, surface snow blowing effect and so on.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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