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USGS Perspective on The Ele-Hydro Concept Adapted from a presentation by Jeff Simley USGS National Hydrography Data Manager.

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Presentation on theme: "USGS Perspective on The Ele-Hydro Concept Adapted from a presentation by Jeff Simley USGS National Hydrography Data Manager."— Presentation transcript:

1 USGS Perspective on The Ele-Hydro Concept Adapted from a presentation by Jeff Simley USGS National Hydrography Data Manager

2 Erosion and Resistance

3 Integration and registration

4 Contours integrated with Hydro Heads-up Digitizing

5 How we think and collect now... Elevation Separate funding mechanisms $$$ Indiana LiDAR $3.3million Indiana Hydro $2.6million Data housed separately (raster vs vector) Separate data standards Managed separately Separate collection methods Hydro National Hydro Data 100k 24k Local Data Watersheds Vector National Elevation Data PointCloud DEM Raster Stovepiped Empires Turfs

6 High Resolution lidar DEM

7 Indiana’s National Hydrography Data Update Project Illinois - Indiana

8 LiDAR Point Cloud DEM Veg Infra- structure Soils Hydro Hydro-Flatten Hydro-Enforced Forest Canopy Forest Health Crop Health Grasslands Building footprints Utilities Roof analysis Transportation signage Watershed Boundaries Drainage features Wetlands Catchments Subbasins Floodplains

9 Hydro Elevation Combined USGS Apps: StreamStats NHDPlus U.S. Topo How we think now - Some integration occurring... Forcing integration by “burning” the Hydro data into the Elevation data

10 U.S. Topo

11 Elevation Vegetation Landcover Catchments Wetlands NHD Packaging the Data

12 Derive hydrography from the terrain

13 Indiana’s Local-Resolution NHD streams and lidar DEM

14 Integration – What does it mean? 1)Alignment of elevation and hydrography such that streams flow in channels 2)Interoperability such that a levee can be connected to a river 3)Data Model that links elements and features 4)Synthesis such that streamflow can be estimated 5)Derivatives such that gradient, channel dimensions, etc. can be calculated 6)Program where a DEM and Hydro can be jointly produced and funded 7)Synchronization so that data are temporally coincident 8)Product in a way that both elevation and hydro can be packaged together 9)Delivery of data to be accessed in unison

15 Integration – Why? 1)Reduce cost 2)Provide improved credibility 3)Produce accurate data 4)Increase the value of the data 5)Empower science-based decisions 6)Challenge and drive research

16 An Integrated Landscape “All geospatial software is moving to 3D. It is now an expectation.” Steve Snow, ESRI Imagingnotes.com,


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