The database contains some outputs of the VCD for the scenarios : {1)
Standard cloud albedo Scenario, solar EUV average conditions ; 2)
Standard cloud albedo Scenario, solar EUV minimum conditions ; 3)
Standard cloud albedo Scenario, solar EUV maximum conditions ; 4) Low
cloud albedo Scenario, solar EUV average conditions ; 5) High cloud
albedo Scenario, solar EUV average conditions available}, at different
positions of latitude and longitude. These VCD outputs are provided as
Votables containing profiles of temperatures, pressures, density and
abundances of main species for altitudes between 0 and 349.5 km from
the surface.
The ephemeris were produced by simulating the ejection of meteoroids
from the sunlit hemisphere of cometary nuclei, typically from 0 to 3
au, followed by the propagation of orbits of meteoroids in the Solar
System, taking into account the gravity of the Sun, the 8 planets,
Pluto, and the Moon, as well as the radiation pressure and the
Poynting-Robertson drag. Note that asteroid parent bodies were
considered as active (i.e. comet-like bodies) even if they are not
active today. The showers are predicted when a planet enters a large
enough set of meteoroids, at a distance less than typically 0.01 au.
See Vaubaillon J., Colas F., Jorda L. 2005 A new method to predict
meteor showers. I. Description of the model, Astronomy and
Astrophysics, Volume 439/2 p.751-760, as well as: Vaubaillon J. 2017 A
confidence index for forecasting of meteor showers, Planetary and
Space Science, Volume 143 p.78-82
