1. Vann-Nett - the Norwegian WISE node
Lars Stalsberg
WG-GIS workshop
Dublin January 2008

2. Choice of Technology
ArcGIS Server (AGS) chosen as solution for the national system for the implementation of the WFD.
Natural choice since national administration use ESRI technology
Geographical interface to all data
Central database for all WFD data
All users connected via Internet to one system which simplifies control and support
Easy to produce maps and statistics
Can be tailored to specific user demand on the fly
Set up as direct connect to our Oracle database
ArcSDE needed on the Oracle database server in addition to be able to handle data in ArcGIS

3. First the some of the experience with AGS 9.1
Experiences with AGS
First the some of the experience with AGS 9.1
Stable, but slow response time
Only one mxd, giving a very long TOC over time with new wishes for layers added on
Complicated handling routines, e.g. marking the layer one wish to work with etc
Lots of complaints by users in the start….
No interactivity in symbolisation of layers
In short a technology it is good to get rid of…..

4. AGS 9.1 Interface

5. Some experience with AGS 9.2
Experiences with AGS
Some experience with AGS 9.2
Relatively fast in delivering map data and layers
Slower in delivering database data (!)
Possible to program extra functions into the application
Many mxd’s makes interface better
Though some problems with mxd’s shadowing those “under”
Easy to operate and more intelligent, users do not need to mark what they want to work with in the TOC
Possible to interactively show result of added data
Good panning functionality, data get cached
Good zoom and other functionality (more like ArcGIS)
Happy users (for a while…..)

6. But, also problems with AGS 9.2(price of course)
Experiences with AGS
But, also problems with AGS 9.2(price of course)
Was told that database server (Oracle) had to stand in DMZ with the AGS to avoid problems
IT people did not like this and placed it on the inside of the firewall and there should be no problem when ports are open…results:
First it seemed ok, but….
Application crashed often and need for regular reboot
Found that the Arc.SOCs crashed because it timed out in the firewall which “thought” that processes longer than 2 h had an error and stopped them
Arc.SOCs set to 24 h circulation by default. Changed this to 1 h. Seems to work
Problems with WMS map data from mapping agency
When WMS services down, your own service slows down waiting for timeout, and no data delivered

7. Development in near future
Direct link to all documents via map interface or WB code
Decided to link to documents in the database where authorities store these
Users and public will get access to all data about WB, hydropower concessions, pollution data
Direct link between Vann-Nett and the new AGS application made to handle all gauging data in Norway under the Ministry of Environment
Communication both ways to serve users with both detailed station data and WFD data
Will redesign database and -model to fit new GIS GD and INSPIRE
Run runoff models for any point in catchment

8. Link from WISE to Vann-Nett
Many ways to the goal….still via ESRI, but have started to think about OS…
Interactive link to national system through map interface by clicking on a WB in WISE
Important to be able to handle WB code history
Link by WB code/name, RBD from WISE to national system
Through this there will be given access to all WFD data in national system, all background data and geographical data for the chosen WB or RBD
For Norway the Norway Digital will ensure access to all public geographical data
Reports can downloaded in addition to any selection of vector data for WBs
Will deliver WMS and WFS

9. AGS 9.2 Interface

10. Getting Information to asses Risk

11. Panels Can be Lifted Out to View all Data

12. Using Gauging Data for Risk Assessment

13. Viewing Hydropower Installations

15. Easy to Create New Lake WB

16. Crating new River WB

17. Rivers Selected for WB

18. Drawing Groundwater WB

20. Thanks for your attention