1. Pattern formation may also form from a chemically driven convective instability . 2. This condition is referred to as " convective instability ". 3. Limited convective instability at the cloud level gives the cloud a rolled or rippled appearance. 4. When the former exceeds the latter by a critical ratio, convective instability sets in. 5. In the spatial approach, experimenters simulate a lab experiment with natural inlet and outlet conditions ( convective instability ). 6. Layered forms of altocumulus are generally an indicator of limited convective instability , and are therefore mainly stratocumuliform in structure. 7. These processes often occur in environments of rifting, plume erosion, continental collision or where there is convective instability . 8. The species table shows these types sorted from left to right in approximate ascending order of the convective instability of each species. 9. :: : : : Convection occurs whenever the temperature differences exceed the local lapse rate, leading to a convective instability . 10. In meteorology, "'convective instability "'or "'stability "'of an air mass refers to its ability to resist vertical motion.