I-convection yohlobo lwesithando sokushisa ingilazi eyisicaba iyinguqulo yokuthuthukisa yohlobo olujwayelekile lwesithando somlilo sengilazi eyisicaba.Ngaphandle kwazo zonke izinhlobo zengilazi ezingenziwa isithando sokushisa esivamile, isithando somlilo esishisayo singenza ingilazi ye-low-e ifudumale.Ngokusho kwezikhundla zesistimu ye-convection, ingenza izinhlobo ezahlukene zengilazi ephansi.