1. CUAHSI
HIS
Sharing hydrologic data
Sharing Hydrologic Data using the CUAHSI Hydrologic Information System Part I: Catalog and Server
The CUAHSI HIS is Supported by NSF Grant# EAR

2. Introducing the “Knowing Generation”
“Just type it in your phone, Daddy.”

3. What’s a Lobster?

4. SOA = Enabling the Knowing Generation

5. CUAHSI HIS SOA = Enabling Water Science Data Discovery
Data Discovery and Integration platform
Data Publication platform
Data Synthesis and Research platform
Data Services
Metadata Services
Metadata Search
HIS Central
HydroDesktop
HydroServer
Service registration
Catalog harvesting
Service and data theme metadata
Data carts
Water Data Services
Spatial Data Services
Like search portals Google, Yahoo, Bing
Like browsers
Like web servers
Like HTML
Welcome to our week for discussing HydroServer and HydroServer Lite as tools for publishing your data from an ODM using the Water One Flow web services and web based user interfaces.
As you recall, the CUAHSI Hydrologic Information System is comprised of three components which follow the internet’s common Services Oriented Architecture (SOA).
HydroServer and similar software tools plays an important role in the CUAHSI HIS SOA as the primary data provider in the system. It’s role is similar to that of a web server, though the HydroServer needs NO user interface to function on the HIS network since it’s primary role is to share data through web services.

6. HIS = Hydrologic Information System
CUAHSI
Consortium of Universities for the Advancement of Hydrologic Science, Inc.
111 US University members
7 affiliate members
19 International affiliate members
An organization representing more than one hundred United States universities, receives support from the National Science Foundation to develop infrastructure and services for the advancement of hydrologic science and education in the U.S.
HIS = Hydrologic Information System

7. BYU CEE Graduate Seminar
9/29/2011
What is HIS?
The CUAHSI* Hydrologic Information System (HIS) provides web services, tools, standards and procedures that enhance access to more and better data for hydrologic analysis.
HIS helps you discover and access hydrologic data.

8. CUAHSI HIS Metadata Services Metadata Search Data Services
The CUAHSI Hydrologic Information System (HIS) is an internet based system to support the sharing of hydrologic data. It is comprised of hydrologic databases and servers connected through web services as well as software for data publication, discovery and access.
Data Discovery and Integration platform
Data Publication platform
Data Synthesis and Research platform
Data Services
Metadata Services
Metadata Search
HIS Central
HydroDesktop
HydroServer
Service registration
Catalog harvesting
Service and data theme metadata
Data carts
Water Data Services
Spatial Data Services
Like search portals Google, Yahoo, Bing
Like browsers
Like web servers
Like HTML
Welcome to our week for discussing HydroServer and HydroServer Lite as tools for publishing your data from an ODM using the Water One Flow web services and web based user interfaces.
As you recall, the CUAHSI Hydrologic Information System is comprised of three components which follow the internet’s common Services Oriented Architecture (SOA).
HydroServer and similar software tools plays an important role in the CUAHSI HIS SOA as the primary data provider in the system. It’s role is similar to that of a web server, though the HydroServer needs NO user interface to function on the HIS network since it’s primary role is to share data through web services.

9. Remember the Observations Data Model…
BYU CEE Graduate Seminar
Remember the Observations Data Model…
9/29/2011
Sites
Values and Time
The DataValues table is at the center of the Observations Data Model, with other tables around it providing additional information using database relationships.
Variables
Horsburgh, J. S., D. G. Tarboton, D. R. Maidment and I. Zaslavsky, (2008), "A Relational Model for Environmental and Water Resources Data," Water Resour. Res., 44: W05406, doi: /2007WR

10. Our approach thus far…
ODM sits on a server and we connect to it through SQL, Python, etc.
Internet
ODM Database
Python & SQL

11. Our approach thus far…
Or… ODM sits on our computer, but we still use SQL, Python, etc.
Through a local internet…
ODM Database
“Internet”
Python & SQL

12. Web Services Translation layer
HydroServer Approach
ODM Database
Web Services Server
Internet
XML
Web Services Translation layer
XML

13. HydroServer Goals
A platform for organizing and publishing space-time hydrologic datasets that:
Provides local control of data
Makes data universally available
Is autonomous – e.g., functional independent of the rest of HIS
Put the data service as close to the data producer as possible.
Share the data as widely and openly as possible.
Some of the key goals of the HydroServer effort are given here.
Serve as a useful data store regardless of the fate of CUAHSI HIS.

14. ODM 1.1.1

15. Publishing Data in an ODM Database WaterML and WaterOneFlow
WaterML is an XML schema for communicating water data
WaterOneFlow is a set of web services based on WaterML
Set of query functions
Returns data in WaterML
Slide from David Valentine 15

16. For example: to get a site, send this “SOAP” request to the server:
Specify the site and an optional authorization token

17. Get this response: Result returns in this string.
We may look at a couple more examples online.
Result returns in this string.

18. A vocabulary for asking for information about the data
WaterOneFlow
A vocabulary for asking for information about the data 18

19. Go to: http://worldwater.byu.edu/
Click “databases”
Click Sandbox
Click web services
Click SOAP Services
What are the services available?
What do they do?
Go back one page
Click “REST Web Services Test”
Try “Get Sites”
Look at the output
Try formatting the output using

20. WaterML
An XML structure for transferring water time-series data (back to the client) 20

21. Capabilities Database Configuration Tool
Add on Visualization
Capabilities
KEY HydroServer Functionality:
Read ODM
Share it with WebServices
Capabilities Database Configuration Tool
HydroServer
Capabilities
Database
WaterOneFlow
Services
Add on GIS Services through ArcGIS Server
Spatial
Services
HydroServer software can be found at hydroserver.codeplex.com
WaterOneFlow
WaterOneFlow
WaterOneFlow
ODM
ODM
ODM
ODM Databases and Web Services
ArcGIS Server Spatial Data Services

22. 2 Flavors of HydroServer: HydroServer (.NET)
Model implementation of the HydroServer CUAHSI HIS specification
Runs on Windows servers
Requires Microsoft SQL Server
Uses ArcGIS Server
Uses Streaming Data Loader, Data Loader and SQL tools to manage the database.
These are the two flavors of HydroServer that we will discuss in this class. Both are free and open source. Both can be downloaded from the web and installed on your own server. Both can be registered on the CUAHSI HIS system.

23. 2 Flavors of HydroServer
Original HydroServer:
Model implementation of the HydroServer CUAHSI HIS specification
Runs on Windows servers
Requires Microsoft SQL Server
Uses ArcGIS Server
Uses Streaming Data Loader, Data Loader and SQL tools to manage the database.
HydroServer Lite:
Simplified implementation of the CUAHSI HIS specification (all required services are supported).
Runs on the free LAMP stack (Linux, Apache, MySQL, PHP)
Uses front end web pages to load data in the database.
These are the two flavors of HydroServer that we will discuss in this class. Both are free and open source. Both can be downloaded from the web and installed on your own server. Both can be registered on the CUAHSI HIS system.

24. HydroServer PHP (HydroServer Lite)
Simplified implementation of the CUAHSI HIS specification (all required services are supported).
Runs on the free LAMP stack (Linux, Apache, MySQL, PHP)
Uses front end web pages to load data in the database.
These are the two flavors of HydroServer that we will discuss in this class. Both are free and open source. Both can be downloaded from the web and installed on your own server. Both can be registered on the CUAHSI HIS system.

25. What is HydroServer Lite?
PHP and MySQL mean easy/fast/cheap setup
Focus on easy extends to user interfaces.
Developer community at
Let’s try it out:
Browse data from any database, upload data using the “sandbox” database.

26. Can Citizen Science Data be Shared and Intermingled with “Real Data”?

27. Data Input
WaterML2 Output
Interactive Map
Time Series Graph
Open Source/ Light Weight PHP and MySQL WaterML HydroServer

28. HydroServers for the Developing World
Custom PHP-based Catalog for Developing Countries

29. Internationalization Effort

30. Try it… Go to worldwater.byu.edu Databases Sandbox Create a new site
Add some data.

31. Assignment Build your own HydroServer instance on worldwater.byu.edu
Upload your own observations
Write a brief report…