Embed Size (px)
Citation preview
U.S. Department of the Interior U.S. Geological Survey
Events, HEM tools, and the NHD Kathy Yoder HEM POC April, 2014
Events
What are events? You can attach an event, like a section
of river with unique characteristics (attributes) to the NHD. Takes advantage of both sets of attributes, and the
NHD’s geometry/network.
Example applications http://nhd.usgs.gov/applications.html#.Ux87rPldWS
o
Example
Wild and Scenic Rivers, Nationwide Rivers Inventory, National Rivers Recreation Database. All can use a common framework Can link to each other if needed
Example: Nationwide Rivers Inventory
NRI – has it’s own set of attributes and is ~ 2 mil scale
NHD – has it’s own set of attributes and is 24 k scale
Hydrography Event Management Tools What are the HEM Tools? FREE ArcGIS desktop tools for
creation, management, and refresh of event data that is referenced to NHD routes. HEM Web – in development
Hydrography Event Management Tools – What Are They? Basic Functionality Point/Line/Area Create Update Import
Advanced Functionality Measure Linear Distance Go X Distance
Desktop Toolbar
Example: Creating Events using HEM Tools Step 1 - Design Database Step 2 - Get data into GIS format (data
must be clean)
CSV
-XY to Points -XY to Lines
Point and Line Feature Classes
Creating Events using HEM Tools
Step 2 – Import to Event/Create an Event
Creating Events using HEM Tools
Results
Benefits of HEM Tools
SourceFeature ID can link to source data with additional information. Takes advantage of NHD Network, geometry,
and resolution. In correct Schema. Event Sync – If updates are made to the NHD. Built in Metadata tools
HEM: Support, Training, Documentation, Tool downloads [email protected] Email for support, to become a member of the HEM
online community, or to request training. Future Events: AWRA Conference (Presentation and Demo)
Training: Date TBD based on demand.
Contact Information: Kathryn Yoder [email protected] 303-202-4419 http://nhd.usgs.gov/tools.html#hem
Additional Information
Nhd.usgs.gov Kathy Yoder [email protected] Follow us on Twitter @USGSNHD and Like us
on Facebook!
