1. Draft Spatial Data Standards for the Department of Water Resources Greg Smith gregs@water.ca.gov

2. Framework Data Framework (Data for...) Data Distribution Base Map Layers Essential Business Functions External (State and National) DWR Enterprise DWR Program

3. Enterprise Data Sets External OwnerGroupingNameCriticalType YesBoundariesCalWater 2.2.1 boundariesNovector YesBoundaries : DFG RegionsDFG RegionsNovector YesBoundaries : USACE RegionsUSACE RegionsNovector YesBoundaries : Water UtilitiesWater Agency Boundaries (CVP Agencies)Yesvector YesBoundaries : WatershedsWatershed Boundaries DatasetNovector YesRoadsCalTRANS Road layerYesvector YesSoilsSSURGO soilsNovector YesSoilsSTATSGO soilsNovector YesTIGER FilesTiger files (2000)Yesvector NoAerial PhotographyAerial Photography ArchiveYesimagery NoBoundariesPublic Land Survey SystemNovector NoBoundariesPublic, Conservation and Trust LandsNovector NoBoundaries : CountiesCounty BoundariesYesvector NoBoundaries : DWR GeographyDetailed Analysis Units (DAU)Yesvector

4. Central GIS Group  Custodians of enterprise datasets not promoted from within the Department and external datasets.  Maintenance and enforcement of enterprise standards  Upon request, provide support to program dataset custodians.

5. Draft Spatial Data Standards  Want to ensure high quality spatial data.  Metadata does this.  Applicable to “DWR created spatial data”  This is a “living document.”  This is a process not an end in itself.  Legacy data is a special case.

6. Draft Spatial Data Standards (continued) 1.Names 2.File Organization 3.File Formats 4.Database Design 5.Tables and Fields 6.Creation Methods 7.Projection and Coordinate System 8.Positional Accuracy 9.Attribute Accuracy 10.Temporal Accuracy 11.Spatial Consistency 12.Thematic and Attribute Consistency 13.Logical Consistency 14.Accessibility Standards 15.Data Maintenance 16.Quality Assurance and Quality Control 17.Legacy Data 18.Deliverable Media Standards 19.Metadata

7. Sample Standards  Files will be organized by themes. (2.1)  Data created from imagery shall only be mapped from orthorecitifed imagery, except for emergency response or legacy data. (6.2)  Thou shalt use NAD83 and NAVD88. (7.2 and 7.3)  Calculate positional accuracy using NSSDA process (Appendix B) (8.1)  All attributes in all tables shall be 99% consistent, and tested using Appendix E. (11.2)

8. Metadata  Complete metadata is required for DWR-owned enterprise data sets.  Mostly conforms to the Federal Geospatial Data Committee Standards.  27 items where DWR’s standard is tougher.  1 item where DWR’s standard is easier.

9. Legacy  Metadata still have to be completed for Legacy data.  Legacy data does not have to meet numerical standards.  The data is what it is.

10. Commenting  Comments by December 3, 2009.  Use the Data Portal to get copies of the documents.  See my e-mail message, or AquaNet news items for details.

11. Questions?