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Using the Utility Network Analyst with the National
Hydrography DatasetIndiana GIS Local Resolution NHD
Applications for SurveyorsISPLS State Conference
January 18, 2013
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Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships
Using Utility Network Analyst with NHD
• NHD geodatabase network topology allows for analyzing waterflow
• Utility Network Analyst is Tool in ESRI ArcMap ArcView (Basic) license, no extension
required• Requires NHD geodatabase
hydrography dataset, not just feature classes/vector graphics Hydro_Net_Junctions NHDFlowline
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Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships
Analyzing Water Flow with NHD
Tools in the Utility Network Analyst Toolbar
• Show Flow Direction
• Determine common ancestors
• Find connected flowlines
• Trace downstream or upstream
• Find path upstream or downstream
• Find upstream accumulation
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Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships
Using Utility Network Analyst with NHD
• Add data from the NHD geodatabase to the Map Hydrography dataset
HYDRO_NET HYDRO_NET_Junctions NHDFlowline
• Add Other data as needed (not required)
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Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships
Using Utility Network Analyst with NHD
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Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships
Using Utility Network Analyst with NHD
• Turn on the Utility Network Analyst Toolbar in ArcMap
• Set Network to HYDRO_NET
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Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships
Using Utility Network Analyst with NHD
• Show Flow Direction From Flow
menu, select Display Arrows
High ResolutionLocal Resolution
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Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships
Using Utility Network Analyst with NHD
• Trace downstream Add edge
flag Choose
task Solve
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Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships
Using Utility Network Analyst with NHD
• Find upstream accumulation Add
junction flag
Choose task
Solve
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Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships
Using Utility Network Analyst with NHD
• Determine common ancestors Add edge
flags at two or more locations
Choose task
Solve
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Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships
Using Utility Network Analyst with NHD
• Find connected flowlines Add edge
flag Choose
task Solve
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Coordination of Indiana GIS through dissemination of data and data products, education and outreach, adoption of standards, and building partnerships
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