Correlation triangle

From Glossary of Meteorology
Revision as of 17:46, 26 January 2012 by imported>Perlwikibot (Created page with " {{TermHeader}} {{TermSearch}} <div class="termentry"> <div class="term"> == correlation triangle == </div> <div class="definition"><div class="short_definition">The se...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

correlation triangle

The set of all possible variances and covariances between velocities in the three Cartesian directions, defined for a specified statistical order or moment.

For example, the second moment correlation triangle is
where squared quantities are velocity variances and the other terms are covariances. For first-order turbulence closure parameterizations, all of the terms in the correlation triangle above represent unknowns, and must be approximated. For higher-order closure, larger triangles of unknowns would exist.