virtual observatory water_final
TRANSCRIPT
® © 2013 Open Geospatial Consortium OGC
® ®
International Virtual Observatory System for Water Resources
Information
Lewis Leinenweber, Luis Bermudez April 8, 2013
EGU General Assembly 2013 Vienna, Austria
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A Story of a Cross Country River Basin
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A Story of a Cross Country River Basin
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Canadian settlers began using the St. Mary River as an irrigation source in
late 1800’s
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http://en.wikipedia.org/wiki/File:LevelBasinFloodIrrigation.JPG
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American settlers began using the Milk River
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Resource scarcity
When the Milk River’s unreliability threatened the stability of the region, the US made plans for a canal and dam to divert St. Mary River water into the Milk River for use in Montana
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Canada became concern
Early 1900s - Alberta built a “spite canal” to show that it could siphon water diverted from the Milk River back into the St. Mary River further downstream.
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And on and on …
• … • 1909 Boundary Waters Treaty
– The two rivers should be treated as one for the purposes of irrigation and power
– …
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2013
Can we build a collection of interoperating data archives and software tools which utilize the internet to form a scientific research environment in which hydrological research programs can be conducted?
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2013
Can we build a collection of interoperating data archives and software tools which utilize the internet to form a scientific research environment in which hydrological research programs can be conducted? => Virtual Observatory
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Virtual Observatory The two basins in Canada and US and related observations are ALL treated like one observatory
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!
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OGC CHISP-1 Pilot
• Climatology-Hydrology Information Sharing Pilot, Phase 1 (CHISP-1)
• Sponsors
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CHISP Pilot Schedule
• Project Kickoff: 13-14 November 2012 • Preliminary Design: 18 January 2013 • Project Demonstration: 16 April 2013 • Project Complete: 26 April 2013
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Main Goals
• Support Hydrologic Modeling • Assessment of Nutrients Loading for Great Lakes (US and Canada)
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Hydrologic Modeling
Requires Integration of Stream flow and Groundwater Wells Requires Cross-border Integration of River Networks • US National Hydrography Dataset • Canada National Hydro Network (NHN)
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Data Integration for Hydrologic Modeling
Use OGC Web Feature Service (WFS) to find stream gauges and groundwater wells within an area of interest (bounding box)
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Data Integration for Hydrologic Modeling
Harvest sensor service metadata and gauge metadata and time-series last-value data and make it available via in a ebRIM Catalog Services for the Web (CSW).
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Data Integration for Hydrologic Modeling
Use Web Processing Service (WPS) to find US and Canadian upstream river segments from a point of interest.
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Data Integration for Hydrologic Modeling
Use Web Processing Service (WPS) to find and associate stream gauges and groundwater wells with upstream segments returned from the WPS upstream service.
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Data Integration for Hydrologic Modeling
Use Sensor Observation Service (SOS) GetDataAvailabilty (GDA) operation to retrieve time-series data for selected stream gauges and wells for applicable resources.
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Assessment of Nutrients Loading for Great Lakes (US and Canada)
• Integration of Great Lakes water quality data for US and Canada – USGS and EPA Water Quality Portal
services – Water Quality Exchange (WQX) data
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Assessment of Nutrients Loading for Great Lakes (US and Canada)
• Integrating with stream flow (calculating nutrient loads) – Locate and associate water quality
monitoring stations for a selected point of interest in the Great Lakes
– Retrieve nutrient values for identified upstream stations using SOS
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Assessment of Nutrients Loading for Great Lakes (US and Canada)
• Integrating with stream flow (calculating nutrient loads) – Use WPS to calculate nutrient loads for the
requested time period • Execute a simplified nutrient load calculation
model based on USGS Exploration for Graphics for River Trends (EGRET) for selected nutrients.
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OGC Pilots and Testbeds
I have not failed, I’ve just found 10,000 ways that won’t work. Thomas Edison
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Interoperability program
• Over 40 initiatives have been successfully completed since 1999.
• Most OGC standards are advanced through this process.
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Iterative Standards Development
Interoperability Program
Standards Program
Marketing and Communications
Program
Engineering Reports Request for Changes
Adopted Standards
Holes and Enhancements
Implementations
Prototype Implementations
Requirements
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Compliance Program
Abstract Tests
Test Suites Reference
Implementations
Request for Changes
CertiAication
Adopted Tests
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Open Geospatial Consortium
Only world organization, with industry members, focusing
on location standards
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Who performs the work in an initiative?
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Questions?
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Luis Bermudez, Ph.D. [email protected]
@berdez on Twi<er h<p://www.linkedin.com/in/bermudez
CHISP Link: http://www.opengeospatial.org/projects/initiatives/chisp Becoming OGC member http://www.opengeospatial.org/ogc/join/levels