Gillespie goes into some detail on two of the measurement methods.
An important addition will be the Properties of signal sources and measurement methods.
This measurement method is generally referred to as "area" noise monitoring.
The program supports various kinds of grids and measurement methods.
The measurement methods were based upon the results of a pilot study which is described in another scientific paper (4).
In practical terms, the exact meaning of "surface" will vary according to the measurement method used.
The amount will also vary according to individual factors like age and the measurement method used to determine the body's water content.
Agreement is good enough within the tolerance imposed by the measurement method itself, which will be discussed later.
The Commission itself recently instituted research into better measurement methods to identify the 40 % margin.
Therefore the choice of measurement method is mostly one of convenience.