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Development of a Database System

Development of a Database System. Harijs Baranovs Latvian Environment, Geology a nd Meteorology Agency Information Technologies Department Phone: 7032028 E-mail: Harijs.Baranovs@lvgma.gov.lv. Status Quo.

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Development of a Database System

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  1. Development of a Database System Harijs BaranovsLatvian Environment, Geology and Meteorology AgencyInformation Technologies Department Phone: 7032028 E-mail: Harijs.Baranovs@lvgma.gov.lv Workshop of the Twinning project on Water Quality, Sept. 04-06, 2006

  2. Status Quo • Lots of existing databases and information systems in environment, geology and meteorology field in relation to water and air • integration of existing and new information systems’ products is very prior task after establishing of LEGMA • “Concept for development of common environment, geology and meteorology information system” adopted in December, 2005 Workshop of the Twinning project on Water Quality, Sept. 04-06, 2006

  3. Information domens relevant to the project Workshop of the Twinning project on Water Quality, Sept. 04-06, 2006

  4. Overall structure of information processing in LEGMA Workshop of the Twinning project on Water Quality, Sept. 04-06, 2006

  5. Developing new information system(s) • Circumstances that must be considered: • to find the place and task in the common IS structure,to detect the relationship with other information systems • to define the output products and the potential users and applications • to ensure quality control and to use standarts for development process (documentation, user manuals) • to guarantee interoperability (bussines, technical and semantic levels) with other information systems Workshop of the Twinning project on Water Quality, Sept. 04-06, 2006

  6. Technical implementation • information should be maintained in one place – the most closly to the place of origin. Other systems should use this information based on different attributes depending on the tasks and goals. • common global classification (coding) system must be used where applicable • all information should be geo-refferenced to be able to apply GIS technologies (data acqusition, modelling, presentation of the results etc.) • interoperability with de facto standards in LEGMA: Oracle, ESRI Arc/Info or ArcView. Workshop of the Twinning project on Water Quality, Sept. 04-06, 2006

  7. Common classification • River streams and catchments • Lakes / reservoirs / ponds (10ha and larger); • Water bodies (temporary); • Water abstraction sites; • Monitoring sites (temporary); • Wastewater outlets; • Water supply boreholes; • Aquifer; • Administrative and territorial units in Latvia; • Geographic grid systems (EMEP, etc.); • Contamination substances Workshop of the Twinning project on Water Quality, Sept. 04-06, 2006

  8. Potential applications of GIS in the project • data acquisition from other information systems when data queries are based on spatial relationships • computing of models for grided data sets (layers), cross tabulating different areas, calculation of distance from/to objects and area of objects etc. • the platform for model automatic or semi-automatic computing • presentation of the results in the way of thematic maps • LKS-92 coordinate system (geodetic coordinates) and TKS-93 projection must be used. Common GIS reference data should be used in all project activities. Workshop of the Twinning project on Water Quality, Sept. 04-06, 2006

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