Table Of Contents


Environments branch of the schema allows to describe the environment that is important for example for transition line profile broadening or shifting.



Each Environment element may be used to describe a mixture of gases in thermodynamical equilibrium, characterized by the temperature, total pressure and composition.


Extending PrimaryType, environment has following attributes and child elements defned:

  • mandatory envID attribute of type EnvironmentIDType
  • optional Temperature element of type DataType
  • optional TotalPressure element of type DataType
  • optional TotalNumberDensity element of type DataType
  • optional Composition element of type CompositionType, defined as a list, containing at least one of the Species elements.

Each of the Species elements may be defined by either name attribute, containing arbitrary name, or speciesRef attribute pointing to a complete description of a component in the Species branch of XSAMS.

For each of the Species one of PartialPressure, MoleFraction or Concentration elements, each of the DataType, must be defined.