{"thcode":2,"term":{"code":713,"name":"mathematical modeling","parent":2285,"scope":"Operational representation of a system in which the characteristics and behaviors of the component processes, phenomena, or objects, understood using mathematical relationships, are represented by numerical values (measured or hypothetical), so that calculations carried out using them return numerical estimates of system parameters that were not measured directly."},"uf":[{"name":"computational modeling","usewith":false},{"name":"fractal geometric methods","usewith":false},{"name":"groundwater flow modeling","usewith":false},{"name":"modeling (mathematical)","usewith":false},{"name":"numerical methods","usewith":false},{"name":"numerical modeling","usewith":false},{"name":"statistical modeling","usewith":false},{"name":"streamflow modeling","usewith":{"code":1113,"name":"streamflow","parent":1667,"scope":"A type of channel flow, applied to a specific part of surface runoff in a stream, whether or not it is affected by diversion or regulation."}}],"bt":[{"code":2285,"name":"modeling","parent":734,"scope":"Human-constructed representation of processes, phenomena, or objects so that the behaviors, characteristics and relationships among things that are being studied can be understood without exhaustive data collection and analysis."},{"code":734,"name":"methods","parent":1,"scope":"Techniques, methods, procedures, or strategies for research, management, collection, or analysis of scientific information in USGS."},{"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":2298,"name":"inverse modeling","parent":713,"scope":"An iterative approach to estimate the form and characteristics of a physical system explained by observations or measurements. Frequently used to determine a subsurface geological structure from measurements of physical properties obtained at or near the earth's surface."},{"code":715,"name":"mathematical simulation","parent":713,"scope":"A computer algorithm or model, which was created to represent a simplified version of a real world situation."}],"rt":[{"code":1085,"name":"spatial analysis","parent":189,"scope":"Use of quantitative tools to study social, economic, and geographic data in relation to distributions and patterns in geographic space."}]}