User Interface of GIS of Surface Water Quality Management in the Dnipro Basin on the Belarusian Territory

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5. USER INTERFACE OF GIS OF SURFACE WATER QUALITY MANAGEMENT

IN THE DNIPRO BASIN ON THE BELARUSIAN TERRITORY

 

WatGIS user interface serves to handle user queries represented in the structure of GIS of surface water quality management in the Dnipro Basin on the Belarusian territory. Its starting window is shown in fig.9.

 

Fig.9. WatGIS starting window.

 

After the selecting of the appropriate block “Monitoring stations of the national system of environmental monitoring (NSEM)” or “Stations monitoring the industrial effluents”, user makes a query to the database and obtains information in the requested format (graph or table).

 

User queries of the first level

 

5.1 The list of monitoring stations. At this query, the list of monitoring stations for each block is brought to the screen (fig.10).

 

Fig.10. The result of user query "List of monitoring stations".

 

5.2. The map of monitoring stations. At this user query, the map of monitoring stations is brought to the screen in a graphic format for each of the blocks (fig 11).

 

Fig.11. The result of user query "Map of monitoring stations".

 

5.3 Data import. This menu item serves to handle automatic adding up or replacement of the initial data files by means of attaching external files or replacing the initial files with the external ones and preserving the basic file structure. Files can be converted from the MsExcell (*.xls) format into VisulaFoxPro(.dbf) format, which is used in WatGIS.

 

5.4. Services. This menu item includes utilities that may help user, such as User Diary, Calculator, etc.

 

5.5. Externals. This menu items serves to connect external user applications. WatGIS includes basic GIS of the Dnipro Basin with the increased number of layers in the ArcView 3.3 format as well as mathematic model of the breakdown pollution transportation within the Dnipro Basin (fig.12).

 

Fig.12. The result of user query "Externals" with the connection of an external application.

 

At the final stage, Dynamic Atlas was bought from company SKE. This is rather powerful software that enables to create visual dynamic maps of the environmental state of the regions based on the prepared tabular data and shape-files. The Dynamic Web Maps Server v 3.0 modules enable to upload the data into the Internet, i.e. to ensure remote access to the maps and databases. Dynamic Atlas has been set up and connected to WatGIS through the item in the Externals menu. The limitation of Dynamic Atlas consists in the lack of the Russian language support, which sometimes impedes the efficient use of the existing tabular data and thematic maps.

 

Fig.13-14. The result of user query of connection of the Dynamic Maps 3.0 module.

 

Fig.13. shows the dynamic change of the created thematic map through the connection of the administrative division topic. This is implemented as coloring of the different administrative districts in different colors. Fig.14 shows easy connection of an additional thematic layer of spatial location of the surface water monitoring networks in the Dnipro Basin to the administrative map.

 

Fig.15. The result of user query of connection of the Dynamic Web Maps Server 3.0 module.

 

User queries of the second level

 

5.6. Input and correction of the database files. This menu item is designated to provide a dialogue input and correction of the initial data into the database files according to the quantitative and qualitative indices with the help of special electronic forms. After the selection of this item from the menu, user must type a password, restricting the access right. (fig.16).

 

Fig.16. Restriction of access to the WatGIS database with the help of a password.

 

After the correct password has been entered, an electronic form is shown on the screen to input (add) records into the database (fig.17).

 

Fig.17. Sample electronic form for input of the information into the WatGIS database.

 

 

5.7 Graphs (histograms) of change over a selected time period for a selected monitoring station according to a selected index (-dices).

 

Upon the selection of this menu item graphs (histograms) of the change in time according to a selected index (-dices) is brought onto a screen (fig.18).

 

Fig.18. Sample result of user queries "Time series" and "Histogram".

 

5.8. Statistical processing according to the selected index (-dices) over the selected period of time.

 

This menu item is used to create an empiric frequency function for a selected monitoring station and selected index (-dices) over a selected period of time (fig.19).

 

Fig.19. Sample result of statistic processing according to a selected index (-dices)

for a selected monitoring station over a selected period of time.

 

5.9. Assessment of the change of water quality according to the water pollution index for a selected monitoring station (-s).

 

This menu item is used to assess the change of water quality according to the water pollution index (WPI) for a selected monitoring station (-s) in a tabular format (fig.20). Utilities are provided to export the query results into the MsExcell format.

 

Fig.20. Sample table of the result of assessment of water quality change according

to the water pollution index for a selected monitoring station (-s).

 

5.10 Thematic maps created according to the water pollution index or any other index (-dices).

 

Upon the selection of this menu item a thematic map created on the basis of WPI or any other selected index (-dices) is brought to the screen. This feature provides for several options of representation of the information (fig.21).

 

Fig.21. Sample thematic maps created according to the water pollution index or any other index (-dices).

 

5.11 Exceeding of MAC according to a selected index (-dices).

 

This menu item is used to bring onto the screen tabular information and statistic processing results of the exceeding of MAC for drinking water or industrial fishing reservoirs (fig. 22). Utilities are provided to export the query results into MsExcell files.

 

Fig.22. Sample results of user query "Exceeding of MAC".

 

5.12. Annual average according to a selected index (-dices)

 

Upon the selection of this menu item and then selection of a monitoring station, index (-dices) and period of time, the initial information for the period of one year is averaged and brought onto the screen in a tabular format (fig.23). Utilities are provided to export the query results into MsExcell files.

 

Fig.23. Sample averaging of the initial information for the period of one year.

 

5.13. Reference subsystem

 

WatGis has an embedded reference subsystem, that can be downloaded by pressing F1 key from the main menu or in virtually any thematic query. Fig.24 represents the list of topics of the reference subsystem.

 

Fig.24. The list of topics of Help subsystem.

 

“User guide” for geo-informational system of water quality management in the Dnipro Basin on the Belarusian territory is provided as a separate document.