A Comparative Study of the Influences of Ice in the Arctic Ocean and the Marginal Ice Zones on Oceanographic Conditions and Primary Productivities

北冰洋与边缘冰区冰对海洋条件和初级生产力影响的比较研究

• 批准号: 01045001
• 负责人: AOTA Masaaki
• 金额: $ 3.9万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01045001/
• 关键词: Sea of Okhotsk; Sea Ice; Air Sea Interaction; Heat Fluxes; Ice Algae; Marginal Ice Zone; Algal Biomass; Ice Concetration; 海氷構造; 海洋生物; クロロフィル-a; 大気ー海氷ー海洋相互作用; 海洋生産力; Sea of Okhotsk; Sea Ice; Air Sea Interaction; Heat Fluxes; Ice Algae; Marginal Ice Zone; Algal Biomass; Ice Concetration; 海氷構造; 海洋生物; クロロフィル-a; 大気ー海氷ー海洋相互作用; 海洋生産力

Comparative study of influences of ice in arctic ocean and marginal ice zone on oceanographic and primary productivityIn this project period (1989-1991), several research works were carried out in the Sea of Okhotsk, Hudson Bay and arctic ocean. The results may be summarized as follows :[Theme 1. The influences of sea ice on the mechanism of air-sea interaction]The coefficients of momentum and heat fluxes obtained in ice covered sea under various ice conditions.[Theme 2. The structure of sea ice and the environmental control of microalgae] Nutrient concentrations of ice algae in the ice were high, microalgae in the brine cells were generally not nutrient limited. The rate of ice growth is the most important factor controlling the distributions of algal biomass and taxonic composition in the sea ice.[Theme 3. Environmental acoustics in ice covered areas] An understanding of-the ambient noise regime under the ice may relate to the strength of the ice and its eventual break up and movement. Similarly, relationships between environmental variables may have significant effects on marine mammals.[Theme 4. Relation of the strength of solar radiation and algal biomass in the marginal ice zone] The observations of solar radiation and the algal biomass were carried out in the southern part of the Okhotsk Sea in February 1992. The results of this observation are being analyzed.[Theme 5. Relation between the air temperature and accumulated ice concentration along the Okhotsk Sea Coast of Hokkaido] The correlation between the accumulated ice concentration and air temperature along the Okhotsk Sea Coast of Hokkaido were statistically investigated. It was suggested that if the mean air temperature averaged from August to March is 1.5 C higher than that of normal year, sea ice will not be found on that coast.

对北极海洋和边缘冰区对海洋学和原发性生产力的影响的比较研究（1989- 1991年），在俄克冈，哈德逊湾和北极海洋的海洋中进行了几项研究工作。结果可以总结如下：[主题1。海冰对气海相互作用机制的影响]动量和热通量的系数和在各种冰条件下覆盖的海洋中获得的热量。[主题2。海冰的结构和微藻的环境控制的结构，Microalgae的环境控制]冰块中的冰algae的营养浓度很高，通常是Microale的含量，Microale cut in Microale in Microale in Microale in Microale in Microale in Microale limite in Microale in Microale in Microale in Microale in Microale in Microale limite。冰的生长速度是控制海冰中藻类生物量和分类组成分布的最重要因素。[主题3。冰覆盖区域中的环境声学]对冰下的环境噪声状态的理解可能与冰的强度及其最终破裂和运动有关。同样，环境变量之间的关系可能会对海洋哺乳动物产生重大影响。[主题4。太阳辐射的强度与边际冰区的强度与藻类冰区的观察结果和藻类生物量的观察结果在1992年3月的Okhotsk Sea的南部进行了界限。北海道的Okhotsk Sea Coast]统计研究了北海道的Okhotsk Sea Coast沿岸的冰块浓度与空气温度之间的相关性。有人建议，如果从8月到3月平均的平均空气温度比正常年份高1.5℃，那么在该海岸上将找不到海冰。