1. A Critical Review of CUAHSI HydroDesktop
CE 394K.2 Surface Water Hydrology
Xitian Cai
Center for Research in Water Resources
University of Texas at Austin

2. Contents
Development
In CUAHSI
Outside CUAHSI
Improvement
Conclusions

3. 1. Web Service Development
Paper copy, Disk storage, , FTP, Web page
Web services
XML, SOAP, WSDL, UDDI
Desktop software
Integrated Data Viewer
HydroDesktop
Currently, Paper copy is still a part of data source in China, and typing data from paper copy into computer is an important job for hydrology students.
FTP (File Transfer Protocol)
XML is used to tag the data, SOAP is used to transfer the data, WSDL is used for describing the services available and UDDI is used for listing what services are available. (

4. 2. Products in CUAHSI HIS
HydroGET
HydroExcel
HydroSeek
HydroDesktop

5. (To & Whiteaker, 2008)

7. Learning about the web service
Active Web Service
Information Text
Learning about the web service
Worksheet Shortcuts
Example Web Services

9. Advantage: combining all the features in previous products.
Tutorial
Advantage: combining all the features in previous products.
Disadvantage: not easy to use, need a help document.

10. Any Polygon

11. 3. Products Outside CUAHSI HIS
Unidata (UCAR)
Integrated Data Viewer (IDV)
Local Data Manager (LDM)
THREDDS …
Environmental Data Connector (NOAA)

15. 3. Outside CUAHSI Summary
Integrated Data Viewer (IDV )
Deals with satellite and radar data
Display animation, 3D view
Environmental Data Connector
Easy to use
An extension in ArcGIS
HydroDesktop
Comprehensive
Specialize in hydrology and environmental

16. 4. Suggestions for Improvement
Minor changes
Base Model
Some minor changes will be suggested in the report. One thing I like to talk here and the only thing I want you to remember is a concept of base model.

17. Base Model (Base Map, Structure & Data)
USGS EROS Data Center
Arc Hydro
Base Model
(Base Map, Structure & Data)
Setting up HydroModeler → HydroDesktop download data automatically.
USGS Streamflow data
USDA Soils Data
National Land Cover Institute
National Climate Data Center
Nexrad stage III precipitation data
(Figures from AGWA model)

18. Base Model Base Model Offers everyone a model.
Model structure and data needed.
Base Model
Offers everyone a model.
Saves users’ time for their research interests.
Standard.
USGS EROS Data Center
National Land Cover Institute
Download to Database
HydroDesktop
Delineate & Link maps together
DEM
Base Model
Land use
If not all the data needed, at least it can link to and download the common used data.
Hopefully, in the near future, when people comparing models or results, they have to refer to HydroDesktop base model. …
Soil
USDA Soil data
Precipitation
National Climate Data Center
Nexrad stage III precipitation data

19. 5. Conclusions Integrates the products in CUAHSI project
Has more features than some other likewise products
Base model for everyone
Future work
More suggestions
Report
Especially, I expect to hear some good suggestions from you.

20. Thank you!
Questions?