| Symbol | Description | Uses |
| kappaRT | background diffusivities for temperature and salinity | 3 |
| File | Line number | Procedure | Code |
| ./pkg/kpp/kpp_routines.F | 1838 | KPP_DOUBLEDIFF |
U kappaRT, |
| ./pkg/kpp/kpp_routines.F | 1980 | KPP_DOUBLEDIFF |
kappaRT(I,J,K) = kappaRT(I,J,K) + nuddt(I,J) |