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The effects of experimental uncertainty in parameterizing air-sea gas exchange using tracer experiment data

机译：实验不确定性对使用示踪剂实验数据进行海气交换参数化的影响

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It is not practical to measure air-sea gas fluxes in the open ocean for allconditions and areas of interest. Therefore, in many cases fluxes areestimated from measurements of air-phase and water-phase gas concentrations,a measured environmental forcing function such as wind speed, and aparameterization of the air-sea transfer velocity in terms of theenvironmental forcing function. One problem with this approach is that whendirect measurements of the transfer velocity are plotted versus the mostcommonly used forcing function, wind speed, there is considerable scatter,leading to a relatively large uncertainty in the flux. Because it is knownthat multiple processes can affect gas transfer, it is commonly assumed thatthis scatter is caused by single-forcing function parameterizations beingincomplete in a physical sense. However, scatter in the experimental datacan also result from experimental uncertainty (i.e., measurement error).Here, results from field and laboratory results are used to estimate howexperimental uncertainty contributes to the observed scatter in the measuredfluxes and transfer velocities as a function of environmental forcing. Theresults show that experimental uncertainty could explain half of theobserved scatter in field and laboratory measurements of air-sea gastransfer velocity.
机译：对于所有条件和感兴趣的区域，在公海中测量海气通量都不切实际。因此，在许多情况下，通量是通过测量气相和水相气体浓度，测得的环境强迫函数（如风速）以及根据环境强迫函数对海气传输速度进行参数化来估算的。这种方法的一个问题是，当绘制传输速度的直接测量值与最常用的强迫函数风速的关系曲线时，会产生相当大的分散性，从而导致通量的不确定性相对较大。因为已知多个过程会影响气体传输，所以通常假定此分散是由物理意义上不完整的单强迫函数参数化引起的。但是，实验数据中的散布也可能是由于实验不确定性（即测量误差）引起的。这里，来自现场和实验室结果的结果用于估算实验不确定性如何对所测通量和传输速度中所观察到的散布做出贡献，这是环境强迫的函数。结果表明，实验不确定性可以解释在野外和实验室测量的海气传输速度中观察到的散射的一半。

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