USGS Perspective on The Ele-Hydro Concept

Report
USGS Perspective
on
The Ele-Hydro Concept
Adapted from a presentation by Jeff Simley
USGS National Hydrography Data Manager
Erosion and Resistance
Integration and registration
Heads-up Digitizing
http://letters-sal.blogspot.com/2011/05/digitizing-wacom-way.html
Contours integrated with Hydro
How we think and collect now. . .
Separate funding mechanisms $$$
Indiana LiDAR $3.3million
Indiana Hydro $2.6million
Hydro
Elevation
National Elevation Data
PointCloud
DEM
Raster
Separate data standards
Managed separately
Stovepiped
Empires
Turfs
National Hydro Data
• 100k
• 24k
• Local Data
• Watersheds
Vector
Data housed separately (raster vs vector)
Separate collection methods
High Resolution lidar DEM
Indiana’s National Hydrography Data Update Project
Illinois - Indiana
Drainage features
Wetlands
Catchments
Subbasins
Floodplains
Hydro
DEM
Watershed
Boundaries
Building footprints
Utilities
Roof analysis
Transportation
signage
Hydro-Flatten
Hydro-Enforced
LiDAR
Point
Cloud
Infrastructure
Soils
Forest Canopy
Forest Health
Crop Health
Grasslands
Veg
How we think now Some integration occurring. . .
Hydro
USGS Apps:
StreamStats
Combined
NHDPlus
Elevation
U.S. Topo
Forcing integration by “burning” the
Hydro data into the Elevation data
U.S. Topo
Packaging the Data
NHD
Wetlands
Catchments
Landcover
Vegetation
Elevation
Derive hydrography from the terrain
Indiana’s Local-Resolution NHD streams and lidar DEM
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
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
An Integrated Landscape
“All geospatial software is moving to 3D.
It is now an expectation.”
Steve Snow, ESRI
Imagingnotes.com, http://www.imagingnotes.com/go/article_freeJ.php?mp_id=292

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