From Glossary of Meteorology


A type of quasi-horizontal mixing in which layers of fluid ("intrusions") flow laterally in alternating directions.

Their signature is temperature (T) and/or salinity (S) inversions in a profile of T and S versus depth, indicating that layers of water have moved laterally from opposing directions. The term "interleaving layer" connotes an intrusive motion of large extent in the direction along the front.

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