{"thcode":2,"term":{"code":1722,"name":"sea ice concentration","parent":1072,"scope":"Proportion of ocean area in a given region that contains or is covered by floating ice."},"uf":[{"name":"sea ice cover","usewith":false},{"name":"sea-ice concentration","usewith":false}],"bt":[{"code":1072,"name":"snow and ice cover","parent":287,"scope":"Accumulation of snow or ice blanketing land surfaces."},{"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":[],"rt":[{"code":810,"name":"ocean characteristics","parent":287,"scope":"The attributes and process of seas and oceans."}]}