Meridional heat transport ($H_T=\int {\rho }_0{c}_{p}vTdA$)

The component of heat transport crossing a latitude. A poleward transport is northward in the Northern Hemisphere and southward in the Southern Hemisphere. Equal and opposite volume transports can carry net heat when the poleward branch is warmer. For eddies, the corresponding transport is determined by the correlation of meridional velocity and temperature anomalies, closely related to eddy buoyancy flux in a thermal Boussinesq approximation.