Wind energy input in coastal seas east of China  

作　　者：臧楠 吴德星 

机构地区：[1]Physical Oceanography Laboratory,Ocean University of China [2]Key Laboratory of Ocean Circulation and Waves,Institutes of Oceanology,Chinese Academy of Sciences

出　　处：《Chinese Journal of Oceanology and Limnology》2013年第3期648-655,共8页中国海洋湖沼学报（英文版）

基　　金：Supported by the National 111 Project of China(No.B07036);the National Natural Science Foundation of China(Nos.40930844,40976004);the Research Fund for the Doctoral Program of Higher Education of China(No.20110132130001)

摘　　要：This study investigates the wind energy input, an important source of mechanical energy, in the coastal seas east of China. Using the wind field from the high-resolution sea surface meteorology dataset in the Bohai Sea, Yellow Sea, and East China Sea, we studied the wind energy input through surface ageostrophic currents and surface waves. Using a simple analytical formula for the Ekman Spiral with time- dependent wind, the wind energy input through ageostrophic currents was estimated at -22 GW averaged from 1960 to 2007, and through use of an empirical formula, the wind energy input through surface waves was estimated at -169 GW. We also examined the seasonal variation and long-term tendency of mechanical energy from wind stress, and found that the wind energy input to the East China Sea decreased before the 1980s, and then subsequently increased, which is contrary to what has been found for the Bohai Sea and Yellow Sea. More complicated physical processes and varying diffusivity need to be taken into account in future studies.这研究调查风精力输入，机械精力的重要来源，在中国的沿海的海东方。用从在 Bohai 海，黄海，和华东海的高分辨率的海表面气象学数据集的风领域，我们通过表面 ageostrophic 水流和表面波浪学习了风精力输入。用为有 timedependent 风的 Ekman 螺线的一个简单分析公式，通过 ageostrophic 水流的风精力输入在从 1960 ～ 2007 平均的 22 GW 被估计，并且通过一个实验公式的使用，通过表面波浪的风精力输入在 169 GW 被估计。我们也从风应力检验了季节的变化和机械精力的长期的趋势，并且发现到华东海的风精力输入在 1980 年代前减少了，然后随后增加了哪个与被作出对有利的裁决的相反 Bohai 海和黄海。更复杂的物理过程和变化扩散性需要在未来研究被考虑。

关 键 词：energy wind stress Bohai Sea Yellow Sea East China Sea 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]