Point-to-area (point-to-volume) representativeness
The probability that a point measurement lies within a specific range of area-average (volume-average) concentration value
RD14: Nappo, C.J., Caneill J.Y., Furman R.W., Gifford F.A., Kaimal J.C., Kramer M.L., Lockhart T.J., Pendergast M.M, Pielke R.A., Randerson D., Shreffler J.H., and Wyngaard J.C., The Workshop on the Representativeness of Meteorological Observations, June 1981, Boulder, CO, Bull. Am. Meteorol. Soc. 63, 761-764, 1982.
Again, applies to one community (concentration measurements) only. It should be possible to consider this from other fields too