Remote environmental monitoring.
Distance methods extend the possibilities of investigating the quality of environment. Laser-radar location permits the control of spread of atmospheric pollution. The accuracy of measurements of the individual ingredients is superior to MAC. More complex information on the qualitative state of all natural media can be obtained from photographs taken from space, but quantitative evaluation of contamination on the basis of cosmic photographs still presents difficulties.
D000397:Air Pollution; D004782:Environmental Health; D007834:Lasers; D008722:Methods; D010781:Photography; D011825:Radar; D014586:USSR; D014876:Water Pollution