{"thcode":2,"term":{"code":626,"name":"land surface characteristics","parent":287,"scope":"Features and attributes of earth's land surface."},"uf":[{"name":"landscape","usewith":false},{"name":"physiography","usewith":false}],"bt":[{"code":287,"name":"earth characteristics","parent":1174,"scope":"The measurable, definable properties and features of the earth."},{"code":1174,"name":"topics","parent":1,"scope":"Themes, subjects, and concerns for which USGS information resources are relevant."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[{"code":2031,"name":"karst","parent":626,"scope":"Landscape characterized by dissolution features in carbonate or evaporite terranes, often containing caves and sinkholes."}],"rt":[{"code":447,"name":"geography","parent":291,"scope":"Study of the earth's landforms, topography, and climate, the distribution of flora and fauna, and the distribution, culture, and activities of human populations."},{"code":468,"name":"geomorphology","parent":464,"scope":"Branch of geology dealing with surface land features and the processes that create and change them."},{"code":1025,"name":"sea-floor characteristics","parent":810,"scope":"Geomorphic features and geographic, compositional, and textural variation in the materials composing the ocean floor. Includes both large-scale structures (such as seamounts and rises) and fine-scale variations in rocks and deposits on the sea floor."}]}