It has been repeatedly assumed that Heinz Lettau found the Obukhov length in 1949 independently of Obukhov in 1946. However, it was not the characteristic length scale, the Obukhov length L, but the ratio of height and the Obukhov length (z/L), the Obukhov stability parameter, that he analyzed. Whether Lettau described the parameter z/L independently of Obukhov is investigated herein. Regardless of speculation about this, the significant contributions made by Lettau in the application of z/L merit this term being called the Obukhov–Lettau stability parameter in the future.

中文翻译：

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莱托对奥布霍夫长度量表的贡献：科学历史研究

人们一再假设海因茨·莱陶（Heinz Lettau）在1949年独立于奥布霍夫（Obukhov）于1949年发现了奥布霍夫长度。但这不是特征长度尺度，即奥布霍夫长度L，而是高度与奥布霍夫长度的比值（z / L），他分析的Obukhov稳定性参数。本文研究了Lettau是否独立于Obukhov描述了参数z / L。不管对此有何推测，Lettau在应用z / L方面做出的重大贡献都值得将此术语称为Obukhov–Lettau稳定性参数。