The CUAHSI Hydrologic Information System Presented by Dr
The CUAHSI Hydrologic Information System Presented by Dr. Tim Whiteaker The University of Texas at Austin 22 February, 2011
About the Speaker Ph. D 2004 Research Associate
What You Will Learn • What is the CUAHSI Hydrologic Information System (HIS) • How to access data in HIS • How to publish data with HIS
Outline • The HIS Story • HIS components • Putting the pieces together
Outline • The HIS Story • HIS components • Putting the pieces together
HIS Connects People with Data • The CUAHSI Hydrologic Information System (HIS) provides web services, tools, standards and procedures that enhance access to more and better data for hydrologic analysis.
Niagara Peninsula Decision Support
What is CUAHSI Consortium of Universities for the Advancement of Hydrologic Science, Inc • Funded by NSF • Develops infrastructure and services to advance hydrologic science in US universities www. cuahsi. org
CUAHSI Member Institutions
CUAHSI Hydrologic Information Systems Project David R. Maidment The University of Texas at Austin (HIS Project Leader)
CUAHSI HIS Development 2000 CUAHSI Regional Meetings 2002 2004 HIS Pilot Project 2006 2008 2010 HIS Development Project
too much water dirty water too little water environment
How can HIS help? Just get me the data!
What’s challenging about data? - Data formats - Metadata
Data Integration Hydrologic Observations GIS Data Digital Watershed Weather and Climate Remote Sensing Currently, the focus is on data from monitoring sites at point locations.
The Result • Water. ML language for describing water data • National catalog of water data sources • Free software for data access Water. ML Standards Metadata Catalog Services Software
Metadata Catalog, October 2010 56 public services 18, 000+ variables 1. 88+ million sites 23. 3 million series Referencing 5. 1 billion data values Map integrating NWIS, STORET, & Climatic Sites
Streamflow 2 services 7 variables 4, 363 sites 11, 484 series 9, 493, 968 records
Water Temperature 6 services 11 variables 11, 158 sites 22, 953 series 1, 546, 841 records
Bacteria 1 service 21 variables 4, 801 sites 15, 483 series 297, 849 records
For more on the HIS Story his. cuahsi. org
Outline • The HIS Story • HIS components • Putting the pieces together
Web Paradigm Catalog (Google) st e rv a h g Se ar ch lo a at C Web Server (CNN. com) Access Browser (Firefox)
Services-Oriented Architecture for Water Data HIS Central n io at r ice v r Se t gis re g lo ta t r ha s ve Se ar ch Ca Hydro. Server Data access Hydro. Desktop
HIS System Overview USGS Data Web Service HIS Central Data Registration HIS Central Metadata Catalog Hydrologic Ontology University Data Access Hydro. Servers Data Discovery Users (Hydro. Desktop)
Water quantity and quality Water Data Soil water Meteorology Remote sensing Rainfall & Snow Modeling
Point Observations Time Series A point location in space A series of values in time
Sources of Observations Data
Getting Water Data (the old way) Asking for data What comes back
Point Observations Information Model City of Austin Data Source Waller Creek Gauges Network Waller Creek at Koenig Lane Sites Streamflow Variables 0. 15 cfs, 15 February, 2011, 2 AM Values who where what when
Water. ML as a Standard Format Streamflow data in Water. ML Discharge of the San Marcos River at Luling, June 28 - July 18, 2002
Water. ML Includes Sites, Variables, and Time Series site variable time series
Web Pages and Web Services http: //www. safl. umn. edu/ http: //his. safl. umn. edu/SAFLMC/cuahsi_1_0. asmx Uses HTML Uses Water. ML
Web Service Examples Convert Temperature Get Streamflow Web services are resources that your applications can ask to do work for them
Water. One. Flow Web Service • Set of query functions – – Get Sites Get Site Info Get Variable Info Get Values • Returns data in Water. ML Data Source Network Sites Variables Values
Water. ML and Water. One. Flow Locations Variables Date Ranges Get. Site. Info Get. Variable. Info Get. Values Data EPA Data USGS Data UT Water. ML Client Water. One. Flow Web Service Data Repositories Water. One. Flow is how you ask for data Water. ML is the data format
Hydro. Excel Demo: Introducing Water. One. Flow
HIS System – Hydro. Server USGS Data Web Service HIS Central Data Registration Metadata Catalog Hydrologic Ontology University Data Access Hydro. Servers Users Data Discovery And Access
Hydro. Server Goals • A platform for publishing space-time hydrologic datasets that: – Provides local control of data – Makes data universally available – Is open source (hydroserver. codeplex. com)
Internet Applications Time Series Data Collection Historical Data Files Database GIS Data Get. Sites Get. Site. Info Get. Variable. Info Get. Values Water. ML Water. One. Flow Web Service Hydro. Server
Operational Hydro. Servers http: //icewater. usu. edu/ http: //www. his. npca. ca/hydroserver/
Why Publish Data with HIS Recognition Collaboration Public service Cost savings
What Have We Covered USGS Data Web Service HIS Central Data Registration Metadata Catalog Hydrologic Ontology University Data Access Hydro. Servers • HIS Overview • Hydro. Server – Water. One. Flow – Water. ML Users Data Discovery And Access
HIS System – HIS Central USGS Data Web Service HIS Central Data Registration Metadata Catalog Hydrologic Ontology University Data Access Hydro. Servers Users Data Discovery And Access
HIS Central • Data publishers – Register a service • Users – Find a service • Supported by – Metadata Catalog – Hydrologic Ontology http: //hiscentral. cuahsi. org
Metadata Catalog Stores description of time series, e. g. , The USGS measures streamflow at Waller Creek & Koenig with data from 7/31/1968 to the present… …and you can get the data from here. Registered services harvested weekly
Metadata Catalog, October 2010 56 public services 18, 000+ variables 1. 88+ million sites 23. 3 million series Referencing 5. 1 billion data values Map integrating NWIS, STORET, & Climatic Sites
Streamflow Water Temperature Nutrients
Thematic Concepts Core Concept Property Branch Leaf Chlorophyll A Chlorophyll Pheophytin Biological Indicator Organisms Dissolved Oxygen Hydrosphere Chemical Suspended Solids E. Coli Fecal Coliform DO Concentration DO Saturation Fixed Suspended Solids Total Suspended Solids Groundwater Flow Discharge Stream Discharge Physical Air Temperature Water Temperature Variables
Hydro. Tagger Each Variable in your data is connected to a corresponding Concept
Water Temperature 6 services 11 variables 11, 158 sites 22, 953 series 1, 546, 841 records
HIS Central Web Page http: //hiscentral. cuahsi. org
HIS Central Web Service • Programmatic methods to query the national metadata catalog • Search by: – – Location Variable Date Range Data source
HIS System – HIS Desktop USGS Data Web Service HIS Central Data Registration HIS Central Metadata Catalog Hydrologic Ontology University Data Access Hydro. Servers Data Discovery And Access Users (Hydro. Desktop)
HIS in Familiar Software
Hydro. Excel
Hydro. Excel Limitations • • Can’t hold much data No dates before year 1900 Not truly geospatially enabled Not free • How can I use HIS in software built to work with HIS from the ground up?
Hydro. Desktop • Free, open source solution for HIS data access • www. hydrodesktop. org
GIS fully integrated with HIS - Metadata catalog - Ontology keywords - Water. One. Flow/Water. ML
Built-in Analysis • • Tables Graphs Editing Export
Customizable with Plug-ins • Community development • Build on the Hydro. Desktop framework Hydro. Modeler
Outline • The HIS Story • HIS components • Putting the pieces together
Services-Oriented Architecture for Water Data Catalog HIS Central n io at r ice v r Se t gis re Ca Hydro. Server Data Publisher g lo ta t r ha s ve Water. ML Data access Se ar ch Hydro. Desktop User
Start Using HIS • HIS Website – his. cuahsi. org • User Support Specialist – Yoori Choi – ychoi@cuahsi. org
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