||Marine plant and animal life as it relates to its environment. For pollution of the ocean, See 24/04, Water Pollution and Control.
||Cartography and Aerial Photography
||Mapping including radar mapping; Photogrammetry; Terrain modelling; Map projections; Topographic representation; Aerial and satellite photography; Photointerpretation.
||Physical and Dynamic Oceanography
||Physical, chemical and dynamic properties of the oceans and seas; Topography, geochemistry and geophysics of the ocean bottom; Ocean waves; Currents; Tides; Ocean- air interactions; Beach and shore erosion and sediment transport. For sea ice phenomena and ice breaking operations, See 08/12, Snow, Ice and Permafrost. For fresh water phenomena, See 08/08, Hydrology, Limnology and Potamology. For water pollution, See 24/04, Water Pollution and Control.
||The study of the earth's magnetism, geomagnetic field theory and measurement. Includes solar terrestrial magnetic interactions. For magnetic detection of manmade events, See 17/06, Magnetic and Electric Field Detection and Detectors. For geomagnetic location of mineral deposits, See 08/09, Mining Engineering.
||Geodetic surveying; Determination of position of points on the earth's surface; Shape and size of the earth; Variations of terrestrial gravity; Astronomical geodesy and geodesics.
||The study of the non-physical aspects of the natural and political divisions of the earth. Includes country and area studies. For physical geography, See 08/07, Geology, Geochemistry and Mineralogy. For biogeography, See 06/06, Ecology. For economic geography, See 05/03, Economics and Cost Analysis. For political geography, See 05/04, Government and Political Science.
||Geology, Geochemistry and Mineralogy
||The sciences that deal with the physical history of the earth, the materials of which it is composed, and the physical changes which the earthhas undergone such as erosion; Mineralogy; Geochemistry of rock andsoils; Paleontology; Stratigraphy; Vulcanology; Tectonics; EngineeringGeology; Structural Geology; Petrology; Petrography; Physical geographyincluding geomorphology and physiography. See also 08/11, Seismology, and 08/10, Soil Mechanics.
||Hydrology, Limnology and Potamology
||Distribution and circulation of inland bodies of water such as estuaries, streams and lakes. Includes their surface and underground occurrence and their physical, chemical and biological properties; Eutrophication; Runoff and ground water; Shore and channel erosion and sedimentation. For water pollution and waste treatment facilities, See 24/04, Water Pollution and Control.
||Exploration, location and evaluation of mineral deposits including oil and gas; Layout and equipment of mines and recovery techniques; Geophysical prospecting including use of seismic waves. For geophysical exploration techniques used for other purposes, see field of application. For disposal of mining wastes, See 24/03, Solid Wastes Pollution and Control.
||Physical properties and engineering aspects of soils; Landslides; Freezing of non- permanently frozen soils. For studies of permanently frozen soils, See 08/12, Snow, Ice and Permafrost. For soil erosion, See 08/03, Physical and Dynamic Oceanography, 08/07, Geology, Geochemistry and Mineralogy, 08/08, Hydrology, Limnology and Potamology, and 02/03, Agricultural Engineering.
||Detection, measurement and analysis of natural seismic phenomena. Includes tsunamis and seismic generated landslides and earthquakes. For seismic detection of nuclear explosions, See 18/03, Nuclear Explosions and Devices(Non-Military), and 19/11, Nuclear Weapons. For seismic detection of other man made events, See 17/10, Seismic Detection and Detectors. For location of mineral deposits by seismic waves, See 08/09, Mining Engineering. For other seismic profiling, see group where application is treated.
||Snow, Ice and Permafrost
||Physical characteristics of snow, ice and permanently frozen soil, such as trafficability, stability, mechanical properties; Avalanches; Glaciers and sea ice. For studies of non-permanently frozen soil, See 08/10, Soil Mechanics. For equipment icing studies also use the group where the equipment is treated.