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Michael TinkerU. S. Geological Survey, National Geospatial Technical Operations CenterAWRA GIS Specialty Conference, 2016
National Hydrography Dataset Linked Data Registry
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Agenda
Network Linked Data 101 aka hydro linked data, events NHDPointEvents
ScienceBase An easy place for users to share NHD hydro-linked data Features of ScienceBase Hydro Linked Data Registry
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+ 5+ 5Hyrologic Unit 8 (HU8) Outlets “Pour Points”
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+ 7Pilot ProjectLower Colorado River System
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The Challenge
NHD does not contain line or polygon events
NHD accepts point events from customers, but only USGS Point Event domains e.g. gages, dams, divergences, pour points
Q: How can I share my events ?
A: The Hydro Linked Data Community on ScienceBase!
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What is ScienceBase?
Creation of USGS Core Science Analytics Synthesis and Libraries group
Platform for sharing data
Metadata catalog
Workspace for collaboration and networking
Script accessible location for data Offers APIs
Content management system for websites and other downstream applications Offers web services
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Data Documentation:Additional information, relationships, etc.
ScienceBase item
• Item exists independently at a URL endpoint.
• Can be related to other ScienceBase resources
• Can be connected to other processes and systems.
Communities
Science Base – The Big Picture
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ScienceBase is for Collaborating
Organizes data into communities
Share data and metadata publicly
Search and discover both internally and externally hosted data
Generates web services automatically for all data
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How is the NHD using ScienceBase?
To offer a place for NHD users to share and store hydro linked data Any kind of linked data, point, line or polygons Not just NHDPointEvents
To model a hydro linked data community Sample Metadata Recommended hydro linked tags
To support our partners requirements Web Services
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Hydro Linked Data
MetadataTAGS
ScienceBase item
Communities
Build a Community!
Web Services
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Summary of benefits of ScienceBase
Web services for downstream applications
Honors FGDC-compliant metadata
ScienceBase data can be accessed by scripts
ScienceBase offers a place for you to store and share NHD hydro linked data
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Questions? Feedback?
USGS ScienceBasehttps://www.sciencebase.gov/catalog/
Michael TinkerU. S. Geological SurveyNational Geospatial Technical Operations [email protected]@usgs.gov303-202-4476