mike wightman
SOC-14 10K
Emm, Mal, Traveller atmospheres are rated for pressure.
In Grand Survey, for CT by DGP, and later incorporated into MT,TNE and T20, there is a minimum pressure and a maximum pressure for each atmosphere number.
Dense atmospheres are 1.5 to 2.49 atmospheres of pressure.
OK, these details are missing from book 3 and book 6, but they are part of Traveller world generation canon.
In Grand Survey, for CT by DGP, and later incorporated into MT,TNE and T20, there is a minimum pressure and a maximum pressure for each atmosphere number.
Dense atmospheres are 1.5 to 2.49 atmospheres of pressure.
OK, these details are missing from book 3 and book 6, but they are part of Traveller world generation canon.