Web GIS to support irrigation management: a prototype for SAGRA network, Alentejo Portugal

Miguel de Castro Neto (Advisor), Ashwin Dhakal, Mário Caetano (Advisor), Filberto Pla (Advisor)

Research output: ThesisMaster's Thesis


An efficient water management, not only allows significant savings in costs of irrigation, but also an effective control on the quality of products, which can have obvious consequences on income operation and reducing the environmental impact of irrigation. As the Internet is becoming the easiest way of information distribution, irrigation management system can also be benefitted with it. Integrating GIS functionality with internet capacity will redefine the way of decision making, sharing and processing of information. In irrigation systems weather plays an imperative role in decision making, implementing and forecasting. Temperature, humidity, precipitation, and solar radiation are the most important parameters to calculate evapotranspiration by which crop water requirement can be determined. SAGRA (Sistema Agrometeorológico para a Gestão da Rega no Alentejo) network is providing information to the farmers through web but still lacks the use of GIS in their information to decision support system. Irrigation management support system can be benefitted with the use of Web GIS. In this thesis, web based GIS is designed using popular open source tools and software. Using data from automatic weather station maps are produced using Geo-statistical interpolation techniques and published in web map. These maps can be viewed with popular online maps like Google maps, Microsoft Bing and Openstreet maps. Animated weather maps are also created which are useful for visualizing changing pattern of weather parameters and water requirement over time.
Original languageEnglish
QualificationMaster of Science
Awarding Institution
  • NOVA Information Management School (NOVA IMS)
  • Neto, Miguel de Castro, Supervisor
  • Pla, Filiberto, Supervisor, External person
  • Caetano, Mário, Supervisor
Award date2 Mar 2019
Publication statusPublished - 2 Mar 2010


  • Geovisualization
  • Map animation
  • Open source
  • Web GIS
  • Weather map
  • Weather stations


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