1. IGIC - Indiana GIS Local-Resolution NHD Applications for Surveyors
7) NHD Stewardship
and Next Steps

2. Indiana’s NHD Stewardship Responsibilities and Workflow High-end GIS Workstation, GIS Software and GIS Technician Required

3. After the Local-Resolution Upgrade:
The Need for Sub-Stewards to provide ongoing Improvements and Maintenance
After the Local-Resolution Upgrade:
Critical to providing a statewide dataset that can be beneficial to users across the state at all levels
Identify individuals and organizations that can help as sub-stewards for their specific areas of interest and expertise.

4. After the Local-Resolution Upgrade:
The Need for Sub-Stewards to provide ongoing Improvements and Maintenance
After the Local-Resolution Upgrade:
Provide tools for sub-stewards to easily submit corrections for…
Names of new features...will also require new names in GNIS
Local verification and determination of new drainage classifications (stream / canal / ditch; ephemeral / intermittent / perennial)
Local verification / determination of flow direction and modeling of new local-resolution hydrography
Extending / modifying new local-resolution hydrography geometry

5. Our Solution: OGC® Geosynchronization Service (Open Web Services)
The Open Geospatial Consortium (OGC) Geosynchronization Service (GSS) is an open standard interface to a software service, that:
Allows data editors to propose changes to be made to a data provider's geospatial features.
A change proposal can be made to create new data or to modify/delete existing data.
Proposed changes are reviewed by owner/reviewer (either manually or automatically) and are either accepted or rejected.
Accepted changes are applied to the appropriate repositories.
The service also maintains a log of all changes applied to each feature.

6. Stewardship Workflow Example OGC Geosynchronization

7. The OGC way – via open web services
OGC Geosynchronization Model
Figure 16, OGC

8. The Need for a Simple to Develop, Access and Use Web Mapping interface for Sub-stewards to submit NHD edits

9. Development begins in February 1, 2013
The Need for a Simple to Develop, Access and Use Web Mapping interface for Sub-stewards to submit NHD edits
Geosynchronization Grant from USGS to implement GNIS Names Maintenance.
Development begins in February 1, 2013