Does anyone know about the conditions and mechanisms that would be involved in the formation and duration of a nuclear winter, of the kind caused by a massive impact?
I am not interested in supposition, I am interested in things like:
- Relationship between impact force and period taken for dust to fill the atmosphere,
- Relationship between impact force and mass of dust/debris lifted,
- The mass of dust required to block out all light from the sun,
- Any information related to dissipation of the dust,
- Information on surface and atmospheric conditions, E.G. how fast does the surface temperature of the planet drop, does convection in the upper atmosphere cause turbulence and electrical storms, how far does UV penetrate, etc.