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NHD Stewardship Conference

Indiana Local Resolution Project March 29, 2012. NHD Stewardship Conference. Mike Martin, IN Department of Natural Resources Chair, Indiana Geographic Information Council Waters Workgroup. NHD Stewardship for Indiana. State Geographic Information Officer

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NHD Stewardship Conference

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  1. Indiana Local Resolution Project March 29, 2012 NHD Stewardship Conference Mike Martin, IN Department of Natural Resources Chair, Indiana Geographic Information Council Waters Workgroup

  2. NHD Stewardship for Indiana • State Geographic Information Officer • Indiana Geographic Information Council • State Agencies • Sub-stewards to-be-named later

  3. Indiana Geographic Information Council • A nonprofit organization whose mission is coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, building partnerships and the IndianaMap. • Important role is to develop plans, standards, and technical implementation guidance for the IndianaMap framework data layers...including surface waters.

  4. Indiana Geographic Information Council IGIC’s - Waters Framework Dataset Workgroup • Open to all, made up mostly by representatives from state agencies (natural resources, environmental management, and transportation), USGS, and NRCS. • Established the National Hydrography Dataset (NHD) for Indiana as the statewide framework dataset for surface waters. • Provide stewardship assistance to State GIO

  5. Improving Indiana’s NHD Goal: Correct & upgrade NHD to local resolution • Address many issues found with High Resolution • existence of physical features • naming of features • alignment to higher resolution orthoimagery • many users need better resolution hydrography • Before creating Local Res, fixed GNIS Names in 24K

  6. Improving Indiana’s NHD Creating local resolution NHD Contract between AECOM and Indiana Office of Technology Phase 1, 30 Subbasins • Funded by Office of Community and Rural Affairs, Disaster Recovery Funds • Goal for completion of Phase 1 is Dec 2013 Phase 2....yet to be funded

  7. Creating Local Resolution NHD • Source data • Imagery: 2005 / 2011 one foot and/or half foot pixel RGB orthophotography, supplemented by available local data when newer and/or more accurate. • Terrain: 2005 (ISTAR) / 2011 (LIDAR) 5 ft cell size DEMs, supplemented by available local data when newer and/or more accurate. ISTAR LIDAR

  8. Creating Local Resolution NHD • Additional Reference data • 1:24K NHD • National Wetlands Inventory • Stormwater data (where available) • Local hydrography (where available) • 6 acre guide streams • 6 acre basins • INDNR dams • Karst dyelines

  9. Creating Local Resolution NHD • Digitize flowlines up to 6-acre drainage area upstream limit, aligning to 1’ or better ortho • Digitize waterbodies draining ¼ acre or greater, aligning to 1’ or better ortho • Add all 24K NHD area, lines and points • Reach codes, ComIDs, perm IDs, GNIS info conflated from 1:24K NHD • Feature level, FGDC compliant metadata generated for each sub-basin

  10. Creating Local Resolution NHD • Phase 1 Pilot, Upper Eel Subbasin • 24K NHD: 2,177 Flowlines; 2,571 Waterbodies • Local Resolution: 47,821 Flowlines; 3,350 Waterbodies

  11. Post-Upgrade Maintenance After the Upgrade, the Real Work Begins • 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 areas of interest • Provide tools for sub-stewards to easily submit corrections • Names of features...may require new names in GNIS • Classifications, e.g. perennial, intermittent, ditch, etc. • Presence or locations of features

  12. ???????? Mike Martin Indiana Department of Natural Resources mmartin@dnr.in.gov 317-232-4068

  13. 2010 FGDC CAP Grant: Indiana NHD Update Geo-Synchronization IGIC Partnership with: Image Matters LLC & Indiana GIO (Jim Sparks) Indiana NHD Update Workflow Indiana Geo-Synchronization Updates NHD Production DB Services ("Diff" Feed, Feature Feed, WFS) Stewardship and Future Updates

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