Evidence for wind‐pumping of air‐sea gas exchange based on direct measurements of CO2 fluxes
Evidence for wind‐pumping of air‐sea gas exchange based on direct measurements of CO2 fluxes
复制标题
基于直接测量二氧化碳通量的风泵气-海气体交换的证据
DOI：
--
复制
发表时间：
1985
期刊：
影响因子：
--
通讯作者：
E. Jones
中科院分区：
文献类型：
--
作者：
Stuart D. Smith;E. Jones
在一系列的测量CO2通量在海上的平均通量接近零，即使地表水有实质上更高的分压CO2比空气。风速的小时变化与通量密切相关，这表明随着风速的增加，风力驱动的过程，如波浪破碎和气泡向下混合，可能会将额外的CO2带入水中。对传统的海气通量随海-气分压差变化的模型进行了修正，使之包含了风向下抽吸的作用。我们的结论是，非大气气体，如氡的通量不作为一个完整的模型，为大气成分，如CO2的双向表面通量。
In a series of measurements of CO2 flux over the sea the mean flux was near zero, even though the surface water had substantially higher partial pressure of CO2 than the air. Hourly variations in wind speed were well correlated with the flux, suggesting that a wind-driven process, such as wave breaking and downward mixing of bubbles, may drive additional CO2 into the water as the wind speed increases. The traditional model of air-sea gas flux as a function of sea-air partial pressure difference was modified to include downward pumping by wind. We conclude that the flux of nonatmospheric gases such as radon does not serve as a complete model for the two-way surface flux of atmospheric constituents such as CO2.