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Vann-Nett - the Norwegian WISE node

Vann-Nett - the Norwegian WISE node. Lars Stalsberg WG-GIS workshop Dublin 15-16. January 2008. 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

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Vann-Nett - the Norwegian WISE node

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  1. Vann-Nett - the Norwegian WISE node Lars Stalsberg WG-GIS workshop Dublin 15-16. 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. 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. 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. 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

  14. Easy to Create New Lake WB

  15. Crating new River WB

  16. Rivers Selected for WB

  17. Drawing Groundwater WB

  18. Thanks for your attention

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