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针对有色溶解有机物(CDOM)和颗粒物在短波波段的强吸收特性对海冰内部及下层海水生物的区大影响,研究了辽东湾海冰内部CDOM和颗粒物的吸收特性。海冰内部CDOM的吸收为下层海水CDOM吸收的1/5～1/2,海冰内部CDOM吸收的最大值一般出现于海冰的表层和底层。由于大气的沉降作用,海冰内部颗粒物吸收的最大值出现于海冰表层。辽东湾海冰CDOM斜率范围为0.0122～0.0231 nm-1,下层海水CDOM斜率范围为0.0174～0.0190 nm-1。海冰生长速率和下层海水CDOM决定着海冰CDOM斜率剖面分布。较高的海冰内部CDOM和颗粒物浓度导致衰减系数的谷值向长波方向移动。
In this paper, the absorption of CDOM and particulate matter inside the sea ice in Liaodong Bay was studied based on the large absorption of CDOM and the strong absorption of PM in the seawater and the seawater. The absorption of CDOM inside the sea ice is 1/5 to 1/2 of that of the lower seawater, and the maximum absorption of CDOM within the sea ice generally appears on the surface and bottom of the sea ice. Due to the sedimentation of the atmosphere, the maximum absorption of particulate matter inside the sea ice occurs at the surface of the sea ice. The slopes of the sea ice in the Liaodong Bay range from 0.0122 to 0.0231 nm-1 for CDOM and from 0.0174 to 0.0190 nm-1 for the CDOM slope in the lower ocean. The sea ice growth rate and the underlying seawater CDOM determine the sea ice CDOM slope profile distribution. Higher concentrations of CDOM and particulate matter within the sea ice cause the valley of the attenuation coefficient to shift toward longer wavelengths.