<descriptor thcode="61"><thesaurus thcode="61" name="Marine Realms Information Bank (MRIB) keywords" scope="Theme keywords from the former Marine Realms Information Bank, focusing on characteristics of coasts and oceans, processes acting on them, and human concerns about them." creator="U.S. Geological Survey" rights="Public domain" date="2016-09-07" codetype="number" prefix="mrib" tblname="mrib" nonpref="mribnp" relterm="mribrt" root_code="1" contact="aallwardt"><category><term thcode="25" code="27" name="types" parent="26" scope="Terms are types of things rather than named instances"/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/><term thcode="25" code="13" name="transitive" parent="12" scope="Narrower terms have an &quot;is a&quot; relationship with their broader terms, and generally can be described as part-of, type-of, or instance-of the broader term."/><term thcode="25" code="5" name="theme" parent="2" scope="Terms indicate domains of human concern, such as scientific discipline, societal problems, or characteristics of earth, space, oceans, and living things."/><term thcode="25" code="21" name="disciplines" parent="2" scope="Broad categories of human inquiry or activity, such as scientific disciplines."/><term thcode="25" code="20" name="methods" parent="2" scope="Actions taken to obtain or analyze information"/><term thcode="25" code="27" name="types" parent="26" scope="Terms are types of things rather than named instances"/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/><term thcode="25" code="13" name="transitive" parent="12" scope="Narrower terms have an &quot;is a&quot; relationship with their broader terms, and generally can be described as part-of, type-of, or instance-of the broader term."/><term thcode="25" code="5" name="theme" parent="2" scope="Terms indicate domains of human concern, such as scientific discipline, societal problems, or characteristics of earth, space, oceans, and living things."/><term thcode="25" code="21" name="disciplines" parent="2" scope="Broad categories of human inquiry or activity, such as scientific disciplines."/><term thcode="25" code="20" name="methods" parent="2" scope="Actions taken to obtain or analyze information"/></category><altlabel><altlabel>MRIB keywords</altlabel><altlabel>MRIB keywords</altlabel><altlabel>Marine Realms Information Bank keywords</altlabel><altlabel>Marine Realms Information Bank keywords</altlabel></altlabel></thesaurus><term thcode="61" code="522" name="modeling" parent="398" scope="development of a quantitative or qualitative (conceptual) approximation of a real-world system or phenomenon."/><bt><term thcode="61" code="398" name="research method" parent="1"/><term thcode="61" code="1" name="Marine Realms Information Bank (MRIB) keyword categories"/></bt><nt><term thcode="61" code="523" name="analytical modeling" parent="522" scope="development of a quantitative model that approximates the behavior of a complex natural system in response to variable input; includes quantitative forecasting or hindcasting models."/><term thcode="61" code="524" name="conceptual modeling" parent="522" scope="development of a qualitative model that approximates the behavior of a complex natural system."/><term thcode="61" code="525" name="economic modeling" parent="522" scope="development of a model that approximates economic trends or conditions in relation to a given set of variables."/><term thcode="61" code="526" name="graphical modeling" parent="522" scope="used broadly for all aspects of the creation, geometric processing, animation, and visualization of graphical models; term not limited to probabilistic graphical modeling."/><term thcode="61" code="527" name="numerical modeling" parent="522" scope="modeling that uses numerical inputs for variables to simulate the behavior of a real-world system; use this term for finite element modeling and computer simulation."/><term thcode="61" code="528" name="scale modeling" parent="522" scope="development of a physical analog for a typically much larger natural system."/><term thcode="61" code="529" name="statistical modeling" parent="522" scope="used for regression analysis, multivariate analysis, time series analysis, kriging, and other statistical techniques for analyzing scientific data."/></nt></descriptor>