| Symbol | Description | Uses |
| a4 | 4 |
| File | Line number | Procedure | Code |
| ./pkg/fizhi/fizhi_turb.F | 3839 | TRBL25 |
_RL a1,a2,a4,c1,a5,a3,b1,b2,b3,ff2,ff3,ff4 |
| ./model/src/gsw_teos10.F | 54 | NO PROCEDURE |
_RL a0, a1, a2, a3, a4, a5, b0, b1, b2, b3 |
| ./model/src/gsw_teos10.F | 71 | NO PROCEDURE |
a4 = 2.166591947736613 _d -3 |
| ./model/src/gsw_teos10.F | 82 | NO PROCEDURE |
ct_factor = (a3 + a4*s1 + a5ct) |