The Commission encourages:

• The study of all frequencies in a non-ionised environment:
  • wave propagation through planetary, neutral atmospheres and surfaces;
  • wave interaction with the planetary surfaces (including land, ocean and ice), and subsurfaces;
  • characterisation of the environment as it affects wave phenomena;
• The application of the results of these studies, particularly in the areas of remote sensing and communications;
• The appropriate co-operation with other URSI Commissions and other relevant organisations.