释义 |
circulation index circulation index[‚sər·kyə·′lā·shən ′in‚deks] (meteorology) A measure of the magnitude of one of several aspects of large-scale atmospheric circulation patterns; indices most frequently measured represent the strength of the zonal (east-west) or meridional (north-south) components of the wind, at the surface or at upper levels, usually averaged spatially and often averaged in time. |