| 海浪对北太平洋海-气二氧化碳通量的影响 |
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| 引用本文： | 何海伦,李熠,陈大可.海浪对北太平洋海-气二氧化碳通量的影响[J].海洋学报,2013,35(4):52-63. |
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| 作者姓名： | 何海伦 李熠 陈大可 |
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| 作者单位： | 1.卫星海洋环境动力学国家重点实验室, 国家海洋局 第二海洋研究所, 浙江 杭州 310012;河海大学 港口海岸与近海工程学院, 江苏 南京 210098 |
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| 基金项目： | 国家自然科学基金项目(91128204;41106019);国家博士后基金项目(20100481449);国家海洋局第二海洋研究所基本科研业务费专项资助项目(GT1205)。 |
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| 摘 要： | 利用4种海-气界面气体传输速率公式对比研究了北太平洋气体传输速率及其CO2通量的季节变化特征。与单纯依赖风速的算法相比, 考虑波浪影响的气体传输速率和CO2通量在空间分布和季节变化上具有明显差异。在低纬度地区(0°～30°N), 波浪参数使气体传输速率下降, 海洋对大气CO2的吸收减少, 而在30°N以北范围内则出现新的气体传输速率高值区, 海洋对大气的吸收增加。进一步研究了黑潮延伸体区域的气候态月平均气体传输速率和CO2通量。结果表明, 该区域气体传输速率和CO2通量最大值分别出现于冬季和春季, 引入波浪参数后, 虽然该区域气体传输速率和CO2通量平均值没有明显差异, 但季节变化强度显著增强。
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| 关 键 词： | 北太平洋 海-气CO2通量 气体传输速率 海浪 |
| 收稿时间： | 2012/5/28 0:00:00 |
| 修稿时间： | 2013/5/27 0:00:00 |
Effect of wind-wave on the air-sea CO2 flux in the North Pacific |
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| HE Hailun,LI Yi and CHEN Dake.Effect of wind-wave on the air-sea CO2 flux in the North Pacific[J].Acta Oceanologica Sinica (in Chinese),2013,35(4):52-63. |
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| Authors: | HE Hailun LI Yi and CHEN Dake |
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| Institution: | State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;College of Harbor, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China;State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;National Marine Environmental Forecasting Center, Beijing 100081, China;State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China |
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| Abstract: | Gas transfer velocity of CO2 on the air-sea interface over North Pacific has been constructed using four bulk formulas, and the seasonal variation of gas transfer velocity and CO2 flux are studied. Compared with wind speed dependent parameterizations, the wave-derived formulas result in different seasonal pattern of transfer velocity and CO2 flux. In tropical and sub-tropical zone (0°-30°N), the wave-dependent formulas show weaker gas transfer velocity and less air to sea CO2 flux. In the northern area (30°-50°N), wave-dependent formulas enhance gas transfer velocity and result in larger CO2 flux from air to sea. Furthermore, climatological monthly mean gas transfer velocity and the CO2 flux in Kuroshio Extension are calculated. The results reveal that gas transfer velocity and CO2 flux reach maximum in winter and spring respectively. The differences among four bulk formulas on the mean gas transfer velocity and CO2 flux in Kuroshio Extrension are not significant, but the wave parameterization causes stronger seasonal variance． |
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| Keywords: | North Pacific air-sea CO2 flux gas transfer velocity wind wave |
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