渤海海冰热力过程处理  

A Solution of Sea Ice Thermodynamic Process for the Bohai Sea

作　　者：王可光[1] 王彩欣[1] 吴辉碇[1] 

机构地区：[1]国家海洋环境预报中心,北京100081

出　　处：《海洋通报》2000年第5期1-11,共11页Marine Science Bulletin

基　　金：国家自然科学基金项目(49976007; 49876003; 59739170);"九五"攻关项目(96-908-02-03)

摘　　要：针对渤海海冰的生消漂移规律，以及对海冰数值模式延长预报时间、增强预报时效的要求，本文推导了与之相适应的海冰热力学过程的数学描述。并在考虑海冰中短期变化规律的基础上，对太阳短波辐射、净长波辐射及海洋热通量，提出以日平均量代替一个时间步长内的平均来进行处理的方法。个例研究表明该方法有较好的模拟能力，这为海冰数值预报延长预报时效提供了有效的保障。In order to extend the forecast time and raise the forecast efficiency for the numerical sea ice model, a new mathematical description of sea ice thermodynamic process is presented according to the growth and decay law of the Bohai Sea ice. And the solar short wave radiation, net long wave radiation and ocean heat flux are all used with a daily mean for every time step based on the sea ice mid-short range variation characteristics. The cases show that this method has a better simulation capacity, thus providing effective guarantee for the sea ice forecasting efficiency.

关 键 词：渤海 热力过程 海冰热力增长函数 热量收支方程 

分 类 号：P722.4[天文地球—海洋科学] P731.32