{"thcode":2,"term":{"code":692,"name":"map coordinate systems","parent":1174,"scope":"Systems using sets of numbers combined with geometric nets or grids to specific positions on a map or globe."},"uf":[{"name":"coordinate systems","usewith":false},{"name":"geographic coordinate systems","usewith":false},{"name":"grid coordinate systems","usewith":false},{"name":"horizontal datums","usewith":false},{"name":"map projections","usewith":false},{"name":"vertical datums","usewith":false}],"bt":[{"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":[],"rt":[{"code":147,"name":"cartography","parent":447,"scope":"The science and art of making maps."},{"code":445,"name":"geographic information systems","parent":587,"scope":"Computer software that allows geospatially referenced data to be linked to geographic features. Use this term only for information that is about GIS and not for the use of GIS in applications and projects."},{"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."}]}