Sodic Land reclamation Monitoring system with Web based GIS as IT Tool Sunil Kumar Agarwal Sr. Manager(System), UPBSN  Rakesh Kumar Thakur Senior Dy Manager (GIS), UPBSN Introduction Internet technology revolutionized Information Technology and GIS is not an exception. Nowadays data communication is possible within a matter of seconds. Users can access GIS and perform a query without having GIS system software through World Wide Web. Internet is a global network of networks. GIS users use it as an IT tool to access and transmit remote data, conduct analysis and GIS presentation. GIS technology has been popularized in the last two decades and Internet GIS has got popularity in the last 5 years only. GIS needs a strong database as sodic land reclamation process is having a strong database in their MIS and put their spatial data in GIS. GIS data can be viewed using Internet explorer or Netscape Navigator or any Internet Browser supported by the PC. Web technology enable the users to access data with almost no cost at client site, hence it is the cheapest solution to provide the information to any user in the world. Using GIS technology, intelligent maps can be published in an open active CGM format. Both Vector and Raster data can be published in this format. Vector data can be sent faster than Raster data because Raster consumes more memory. GIS will be useful in decision-making at State HQ/District PMU/Village level. The aim of publishing GIS data on Web is to use the data created at village field level can be used at highest administrative level and monitored from any where. The data collected from the village field level is to be fed at PMU computer on daily basis from where the database is be updated automatically through Internet and viewed on GIS based monitoring system. UP has about 12.9 lac ha. land affected mainly due to water-induced land degradation (salinization, sodification, groundwater depletion) and loss of soil fertility with the sustained removal of nutrients associated with more intensive cropping and excessive use of fertilizers. Bhumi Sudhar Nigam (UPBSN) has undertaken UP Sodic Lands Reclamation Project with the financial assistance from: - §The World Bank § European Countries The selected districts are :- § Allahabad § Aligarh § Auraiya § Azamgarh § Bulandhshahr § Etah § Etawah § Fatehpur § Hathras § Hardoi § Mainpuri § Pratapgarh §Raebareli § Sultanpur § Jounpur § Kanpur § Unnao Reclamation Targets
Map server and web client are the two major components of Internet GIS architecture. Map server can be splited into map server and data server. Map server prepares the maps from the spatial database on requests and sends back to client while data server is responsible for tabular data and sends back tabular information to clients. Data server consists of Active Server Pages (ASP), which provides the entire user interfaces required to access the database from the client browser. Web client consists of two frames namely Main map frame and side information frame. Main map frame makes the entire request for map images and HTML pages while side information frame displays HTML pages in response to the user inputs in the map frame or in information frame. Main map frame is a JAVA applet that displays the map.
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