ESDU 74030:2010

INTRODUCTION

The purpose of this Item is to provide background information
concerning a series of Items giving data on the properties of
turbulence in the atmospheric boundary layer. Because atmospheric
turbulence is continually changing in time and space it is
necessary to describe its properties in statistical terms. This
Item provides a definition of the parameters used and, where
possible, an explanation of their physical significance. Further,
more detailed, information on the mathematical aspects of
statistical analysis can be found in standard text books on the
subject such as References 2 and 5.

No attempt is made in this Item to explain in detail how the
data are applied in practice since this will depend on the nature
of the problem, of which there are many types. Reference 3 provides
information on how the data can be applied to particular cases of
wind loading on ground-based structures and References 4 and 6
discuss appropriate means of applying the data to the study of
aircraft response to atmospheric turbulence.