NPS GRI Geology-GIS Data Model Documents
The NPS Geologic Resources Inventory (GRI) has developed a Geology-GIS Data Model for implementation in the production of digital geologic-GIS data for parks with significant natural resources. The present GRI Geology-GIS Data Model is based upon the Environment Systems Research Institute (ESRI) personal geodatabase format for storing spatial data within a relational database management system (RDBMS). A geodatabase stores data in point, line, polygon or table feature classes that can be grouped into feature datasets, or logical groupings of vector feature classes that share the same spatial extent. The geodatabase has the added strength of allowing attribute validation rules, relationship classes and topological rules that maintain data integrity within and between feature classes. The newest versions of the geodatabase data model (v.2.0+) make use of "feature class definitions" to define (geologic) feature classes that share the same geometry and topological (spatial) rules, relationship rules, and attribute field parameters.
GRI Geology-GIS Data Model and Related Documents:
GRI Geology-GIS Geodatabase (GDB) Data Model v.2.1 (pdf)
GRI Geology-GIS Geodatabase (GDB) Template ESRI 9.3 Personal Geodatabase v.2.1 (.mdb within a .zip)
GRI Geology-GIS Geodatabase (GDB) Data Model v.2.0 (.doc within a .zip)
GRI Geology-GIS Geodatabase (GDB) Document v.1.4 (.doc within a .zip)
GRI Geology-GIS Coverage/Shapefile Data Model Document (.pdf within a .zip)
Example GRI Digital Geologic-GIS Map: Bryce Canyon National Park and Vicinity, Utah (GRI Geology-GIS Geodatabase (GDB) Data Model v.2.1; .zip; 4.5 MB)