In contrast, the small -
scale convective motions have aspect ratios of order one.
Even if the net rate of moisture exchange were to remain fixed, the Walker circulation could still become stronger or weaker, if the circulation reorganized itself to put less or more of the exchange in the form of small
scale convective motions.
Not exact matches
A traditional parametrisation scheme seeks to represent the average effect of the sub grid -
scale motion (e.g.
convective clouds) on the resolved
scale state (e.g. the large
scale temperature and wind fields).
Even for smaller
scales, except for the most vigorous
convective motions, the dynamic pressure is still only a small fraction of the hydrostatic pressure.